ROHM Develops a 1kW Class High Power Infrared Laser Diode
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ROHM Develops a 1kW Class High Power Infrared Laser Diode

　　ROHM has developed a high output laser diode - RLD8BQAB3 - for use in ADAS (Advanced Driver Assistance Systems) equipped with LiDAR for distance measurement and spatial recognition. ROHM will initially start supplying samples targeting consumer and industrial applications such as drones, robot vacuum cleaners, AGVs (Automated Guided Vehicles), and service robots.　　LiDAR is seeing growing adoption in recent years across a variety of applications that require automation such as automotive ADAS, AGVs, drones, and robot vacuums, facilitating precise distance measurement and spatial recognition. To detect information at greater distances with more accuracy, there is a need for laser diodes that serve as light sources to achieve high kW-level output while allowing multiple light sources to emit light at close intervals.　　ROHM has established proprietary patented technology that achieves the narrow emission width of lasers, enhancing the long-distance, high accuracy LiDAR, beginning with the commercialization of the 25W output RLD90QZW5 in 2019 and high-power 120W RLD90QZW8 in 2023. Building on these successes, we have developed a new 125W 8ch (1kW class) array-type product that meets the demand for a high output, high performance laser diode.　　The RLD8BQAB3 is an ultra-compact surface mount high-output 125W × 8ch infrared laser diode for LiDAR applications that utilize 3D ToF systems to carry out distance measurement and spatial recognition. The optimized design features 8 emission areas (each 300µm wide) per element, installed on a submount affixed to a high heat dissipation substrate.　　The package’s emitting surface incorporates a clear glass cap - an industry first for a surface mount laser diode - eliminating the risk of light scattering caused by scratches during dicing that tends to occur with resin-encapsulated products, ensuring high beam quality. Each emission area is wired with a common cathode, enabling the selection of the irradiation method based on application needs - ranging from individual emission that increases the number of light-emitting points to industry-leading* simultaneous emission at ultra-high outputs of 1kW class.　　The new product retains the key features of ROHM’s conventional laser diodes, including uniform emission intensity across the emission width along with a low wavelength temperature dependence of 0.1nm/°C (vs 0.26 to 0.28nm/°C for standard products). On top, the array configuration narrows the regions of reduced emission intensity between channels, while the bandpass filter minimizes the effects of ambient light noise from the sun and other sources, contributing to long-distance detection and high-definition LiDAR.　　Samples are available since August 2024 (please contact a sales representative or visit the contact page on ROHM’s website).　　Application Examples        Automotive: ADAS　　Consumer: Drones, robot vacuums, golf rangefinders, and more　　Industrial: AGVs, service robots, 3D monitoring systems (sensors for human/object detection), etc.　　Terminology        LiDAR　　Short for Light Detection and Ranging, an application that uses the ToF (Time of Flight) system (comprised of a light source and ToF or image sensor) to sense ambient conditions.　　3D ToF System　　An abbreviation for Time of Flight, a spatial measurement system which, as its name implies, measures the flight time of a light source. Refers to a system that uses ToF to perform 3D spatial recognition and distance measurement.　　Submount　　A small, flat mounting plate made from a material with high thermal conductivity.　　Bandpass Filter　　A filter that allows only signals in a specific light wavelength band to pass through. In optical devices, a narrow bandpass filter range allows for efficient extraction of light close to the peak waveform. This minimizes the effects of ambient noise such as sunlight, enabling lower power consumption at the same distance or longer range at the same optical output.　　IATF 16949　　IATF is the short for International Automotive Task Force, a quality management standard for the automotive industry. Based on the international standard ISO 9001 with additional specific requirements, compliance with IATF 16949 enables automakers and suppliers to meet international quality standards.　　AEC-Q102　　AEC stands for Automotive Electronics Council, an organization (comprised of major automotive manufacturers and US electronic component makers) responsible for establishing reliability standards for automotive electronics. Q102 is a standard specifically intended for optical devices.
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Release time：2025-03-17 13:49 reading：281 Continue reading>>
ROHM’s New TVS Diodes: Supporting High-Speed CAN FD In-Vehicle Communication Systems for Autonomous Driving
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ROHM’s New TVS Diodes: Supporting High-Speed CAN FD In-Vehicle Communication Systems for Autonomous Driving

　　ROHM has developed bidirectional TVS (ESD protection) diodes compatible with CAN FD (CAN with Flexible Data rate) high-speed in-vehicle communication. Such protocols are seeing an increased demand in line with the ongoing advancement in autonomous driving and advanced driver assistance systems (ADAS). CAN FD is a crucial communication technology for safe, real-time data transmission between ECUs (Electronic Control Units) in vehicles. The new products achieve high-quality in-vehicle transmission by protecting electronic devices such as ECUs from surges and electrostatic discharge (ESD) while maintaining signal integrity in high-speed communication systems such as CAN FD.　　The rapid evolution of autonomous driving technology and ADAS is boosting the demand for faster, more reliable automotive communication. Autonomous driving in particular requires quick and accurate processing of vast amounts of data from sensors such as cameras, LiDAR and radar - leading to the adoption of CAN FD that enables faster, higher capacity data transfer compared to traditional CAN used in automotive communication.　　At the same time, to achieve high-speed in-vehicle communication, it is necessary to ensure stable transmission even under harsh environments. This has led to a growing demand for protection components that offer low terminal capacitance along with superior surge current rating and clamping voltage performance. As a result, the market for TVS diodes for automotive communication is expected to continue to grow in the future.　　To meet market needs, ROHM developed the ESDCANxx series that combines low terminal capacitance with excellent surge tolerance. Two package types are available: SOT-23 (2.9mm × 2.4mm) and DFN1010 (1.0mm × 1.0mm), both supporting standoff voltages (VRWM) of 24V and 27V. The SOT-23 package includes four models: 24V ESDCAN24HPY / ESDCAN24HXY and 27V ESDCAN27HPY / ESDCAN27HXY. Similarly, the DFN1010 package is also offered in four models: 24V ESDCAN24YPA / ESDCAN24YXA and 27V ESDCAN27YPA / ESDCAN27YXA, totaling 8 products in the lineup.　　The new products feature an optimized element structure that reduces terminal capacitance to a maximum of 3.5pF, preventing signal degradation during high-speed communication. High surge tolerance is also achieved, significantly improving the protection of electronic devices in automotive environments. For example, the 27V products of the DFN1010 package delivers approx. 3.2 times higher surge current rating and 16% lower clamping voltage compared to standard CAN FD-compatible products. This effectively safeguards expensive surge-sensitive electronic devices such as in-vehicle ECUs, ensuring high reliability even under harsh automotive environments. Going forward, ROHM will continue to develop products that support even faster in-vehicle communication in autonomous driving and communication environments - contributing to realizing a safer, more advanced mobility society.　　Application Examples        • Autonomous driving and Advanced Driver Assistance Systems (ADAS)　　• Automotive electric powertrain systems　　• In-vehicle infotainment systems　　Online Distributor Information        Sales Launch Date: December 2024　　Pricing: $0.9/unit (excluding tax)　　Target Products　　SOT23 Package: ESDCAN24HPY, ESDCAN24HXY, ESDCAN27HPY, ESDCAN27HXY　　DFN1010 Package: ESDCAN24YPA, ESDCAN24YXA, ESDCAN27YPA, ESDCAN27YXA　　Terminology         CAN FD (CAN with Flexible Data Rate)　　An extension of the CAN (Controller Area Network) standard, CAN FD offers faster data transfer speeds compared to conventional CAN, enabling the exchange of large volumes of data. Real-time communication between multiple in-vehicle electronic units (ECUs) is essential in systems like autonomous driving and ADAS.　　TVS Diode (Transient Voltage Suppression Diode)　　A semiconductor device designed to protect circuits from overvoltage, surges, and electrostatic discharge (ESD). TVS diodes absorb sudden voltage and current spikes (surges) to prevent circuit damage and malfunction. In automotive environments, safeguarding against severe electrical fluctuations is crucial.　　Terminal Capacitance　　Unwanted capacitance components that arise in electronic parts. When terminal capacitance is high, signal degradation occurs during high-speed transmission, making it important to reduce terminal capacitance for in-vehicle communication　　Surge Current Rating　　The maximum surge current a TVS diode can withstand. The higher the surge current rating, the stronger the protection against severe electrical fluctuations in automotive environments.　　Clamping Voltage　　The voltage maintained in the circuit when the TVS diode suppresses overvoltage caused by surges or other transient events. A lower clamping voltage provides more effective protection for circuits and devices, increasing the reliability of automotive equipment.
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Release time：2025-03-11 09:29 reading：304 Continue reading>>
ROHM’s New SiC Schottky Barrier Diodes for High Voltage xEV Systems: Featuring a Unique Package Design for Improved Insulation Resistance
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ROHM’s New SiC Schottky Barrier Diodes for High Voltage xEV Systems: Featuring a Unique Package Design for Improved Insulation Resistance

　　ROHM has developed surface mount SiC Schottky barrier diodes (SBDs) that improve insulation resistance by increasing the creepage distance between terminals. The initial lineup includes eight models - SCS2xxxNHR - for automotive applications such as onboard chargers (OBCs), with plans to deploy eight models - SCS2xxxN - for industrial equipment such as FA devices and PV inverters in December 2024.　　The rapidly expanding xEV market is driving the demand for power semiconductors, among them SiC SBDs, that provide low heat generation along with high-speed switching and high-voltage capabilities in applications such as onboard chargers. Additionally, manufacturers increasingly rely on compact surface mount devices (SMDs) compatible with automated assembly equipment to boost manufacturing efficiency. Compact SMDs tend to typically feature smaller creepage distances, fact that makes high-voltage tracking prevention a critical design challenge.　　As leading SiC supplier, ROHM has been working to develop high-performance SiC SBDs that offer breakdown voltages suitable for high-voltage applications with ease of mounting. Adopting an optimized package shape, it achieves a minimum creepage distance of 5.1mm, improving insulation performance when contrasted with standard products.　　The new products utilize an original design that removes the center pin previously located at the bottom of the package, extending the creepage distance to a minimum of 5.1mm, approx. 1.3 times greater than standard products. This minimizes the possibility of tracking (creepage discharge) between terminals, eliminating the need for insulation treatment through resin potting when surface mounting the device on circuit boards in high voltage applications. Additionally, the devices can be mounted on the same land pattern as standard and conventional TO-263 package products, allowing an easy replacement on existing circuit boards.　　Two voltage ratings are offered, 650V and 1200V, supporting 400V systems commonly used in xEVs as well as higher voltage systems expected to gain wider adoption in the future. The automotive-grade SCS2xxxNHR are AEC-Q101 qualified, ensuring they meet the high reliability standards this application sector demands.　　Going forward, ROHM will continue to develop high-voltage SBDs using SiC, contributing to low energy consumption and high efficiency requirements in automotive and industrial equipment by providing optimal power devices that meet market needs.　　Application Examples◇ Automotive applications: Onboard chargers (OBCs), DC-DC converters, etc.　　◇ Industrial Equipment: AC servo motors for industrial robots, PV inverters, power conditioners, uninterruptible power supplies (UPS), and more　　Online Sales InformationAvailability: The SCS2xxxxNHR for automotive applications are available now.　　The SCS2xxxN for industrial equipment are scheduled in December 2024.　　Pricing: $10.50/unit (samples, excluding tax)　　Online Distributors: DigiKey™, Mouser™ and Farnell™　　The products will be offered at other online distributors as they become available.　　EcoSiC™ BrandEcoSiC™ is a brand of devices that leverage silicon carbide, which is attracting attention in the power device field for performance that surpasses silicon. ROHM independently develops technologies essential for the advancement of SiC, from wafer fabrication and production processes to packaging, and quality control methods. At the same time, we have established an integrated production system throughout the manufacturing process, solidifying our position as a leading SiC supplier.　　TerminologyCreepage Distance　　The shortest distance between two conductive elements (terminals) along the surface of the device package. In semiconductor design, insulation measures with such creepage and clearance distances must be taken to prevent electric shocks, leakage currents, and short-circuits in semiconductor products.　　Tracking (Creepage Discharge)　　A phenomenon where discharge occurs along the surface of the package (insulator) when high voltage is applied to the conductive terminals. This can create an unintended conductive path between patterns, potentially leading to dielectric breakdown of the device. Package miniaturization increases the risk of tracking by reducing creepage distance.　　Resin Potting　　The process of encapsulating the device body and the electrode connections between the device and circuit with resin, such as epoxy, to provide electrical insulation. This provides durability and weather resistance by protecting against water, dust, and other environmental conditions.　　AEC-Q101 Automotive Reliability Standard　　AEC stands for Automotive Electronics Council, a reliability standard for automotive electronic components established by major automotive manufacturers and US electronic component makers. Q101 is a standard that specifically applies to discrete semiconductor products (i.e. transistors, diodes).
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Release time：2024-11-20 14:00 reading：443 Continue reading>>
Difference between Diode and Triode in PCBA manufacturing
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Difference between Diode and Triode in PCBA manufacturing

　　In printed circuit board assembly (PCBA) manufacturing, understanding the differences between diode and triode is crucial for designing efficient electronic circuits. Both components play essential roles in controlling the flow of electrical current, but they have distinct characteristics that determine their specific applications and functionalities.　　Diode:Diode　　A diode is a two-terminal electronic component that primarily allows current to flow in one direction while blocking it in the opposite direction. Here are key characteristics and uses of diodes in PCBA manufacturing:　　1. Functionality: Diodes are used for rectification, converting AC (Alternating Current) to DC (Direct Current). They ensure that current flows in only one direction, preventing reverse polarity which can damage sensitive components.　　2. Types: Common types include:　　– Rectifier Diodes: Used in power supplies to convert AC to DC.　　– Zener Diodes: Maintain a constant voltage for regulation.　　– Light-Emitting Diodes (LEDs): Emit light when current flows through them, used for indicators and displays.　　3. Applications: Diodes are found in almost all electronic circuits:　　– Power supplies　　– Signal demodulation　　– Overvoltage protection　　– Voltage regulation　　Triode (Transistor):Triode　　A triode, also known as a transistor, is a three-terminal semiconductor device that amplifies or switches electronic signals and electrical power. Here are the key characteristics and uses of triodes in PCBA manufacturing:　　1. Functionality: Triodes can amplify current, acting as switches or amplifiers depending on the configuration:　　– Bipolar Junction Transistors (BJTs): Amplify current and are used for analog circuits.　　– Field-Effect Transistors (FETs): Control current flow with an electric field, used in digital circuits.　　2. Types: Different types cater to specific applications:　　– NPN and PNP BJTs: Common bipolar transistor types.　　– MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors): High-speed switching in digital circuits.　　– JFETs (Junction Field-Effect Transistors): Used in amplifiers and analog switches.　　3. Applications: Triodes are essential in modern electronics:　　– Amplifiers in audio systems　　– Switching circuits in digital logic gates　　– Oscillators in radio frequency applications　　– Drivers for motors and relays　　Comparison– Function: Diodes primarily control current direction, whereas triodes amplify or switch currents.　　– Configuration: Diodes are two-terminal devices, while triodes (transistors) have three terminals: emitter, base, and collector.　　– Applications: Diodes are crucial for power supply and signal processing, while triodes are fundamental in amplification and digital switching.　　In conclusion, while diodes and triodes are both essential components in PCBA manufacturing, their distinct functionalities and applications make them suitable for different roles within electronic circuits. Understanding their differences is key to designing and assembling efficient and reliable electronic devices.
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Release time：2024-08-16 14:24 reading：481 Continue reading>>
What are TVS <span style='color:red'>diode</span>s in safeguarding electronics
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What are TVS diodes in safeguarding electronics

　　In today’s interconnected world, electronic devices and systems are ubiquitous, powering our homes, workplaces, and communication networks. However, these devices are vulnerable to voltage transients—brief surges in voltage that can occur due to lightning strikes, electrostatic discharge (ESD), or switching transients in the electrical system.　　To protect sensitive electronic components from such transients, Transient Voltage Suppressor TVS diodes play a crucial role. This article explores the functionality, applications, and importance of TVS diodes in safeguarding electronics.　　What is a Transient Voltage Suppressor (TVS) Diode?A Transient Voltage Suppressor (TVS) diode is a semiconductor device used to protect sensitive electronic components from voltage spikes or transient voltages that could potentially damage them. These spikes can be caused by events such as lightning strikes, electrostatic discharge (ESD), or switching transients in the electrical system.　　The TVS diode operates by providing a low-impedance path to divert excess voltage away from the protected components, thus limiting the voltage across them. When a transient voltage exceeds the breakdown voltage (also known as the clamping voltage or avalanche voltage) of the TVS diode, it starts to conduct, effectively shunting the excess current away from the protected circuit.　　What are the features of TVS diodes?Fast Response Time: TVS diodes respond quickly to transient events, providing protection within nanoseconds to microseconds.　　Low Clamping Voltage: The clamping voltage is the maximum voltage that the TVS diode allows to pass through to the protected circuit. It is typically lower than the voltage tolerance of the protected components, ensuring they remain safe.　　High Surge Current Capability: TVS diodes are designed to handle high surge currents associated with transient events, protecting the circuit from damage.　　Low Leakage Current: When not conducting, TVS diodes have low leakage current, minimizing power consumption and ensuring minimal impact on the protected circuit during normal operation.　　Robustness: TVS diodes are robust devices, able to withstand multiple transient events without degradation in performance.　　What are the applications of TVS diode?TVS diodes are commonly used in various applications, including:　　Protection of integrated circuits (ICs), microcontrollers, and other semiconductor devices from ESD and voltage transients.　　Protection of communication ports (such as USB, Ethernet, HDMI) and data lines in electronic equipment.　　Surge protection for power supply lines, signal lines, and sensor inputs in industrial and automotive electronics.　　Protection of sensitive electronic equipment against lightning-induced surges in telecommunications, power distribution, and other infrastructure.　　What’s the difference between TVS Diodes and Zener Diodes?TVS (Transient Voltage Suppressor) diodes and Zener diodes are both semiconductor devices used for voltage regulation, but they serve different purposes and operate in different ways. Here are the key differences between TVS diodes and Zener diodes:　　Purpose:　　• TVS Diodes: TVS diodes are primarily used for transient voltage suppression, meaning they protect electronic circuits from voltage spikes or transients caused by events like lightning strikes, electrostatic discharge (ESD), or inductive switching. Their main function is to provide surge protection and prevent damage to sensitive components.　　• Zener Diodes: Zener diodes are used for voltage regulation and voltage reference. They operate in the breakdown region and maintain a constant voltage across their terminals when reverse biased. Zener diodes are commonly used in voltage regulation circuits, voltage clamping circuits, and voltage reference circuits.　　Operating Principle:　　• TVS Diodes: TVS diodes operate by avalanche breakdown or Zener breakdown. When the voltage across a TVS diode exceeds its breakdown voltage, it starts to conduct heavily, providing a low-impedance path for excess current and diverting it away from the protected circuit.　　• Zener Diodes: Zener diodes operate in the reverse-biased breakdown region, where they maintain a constant voltage (known as the Zener voltage) across their terminals. They regulate voltage by allowing current to flow in the reverse direction when the applied voltage exceeds the Zener voltage.　　Voltage Characteristics:　　• TVS Diodes: TVS diodes typically have a very low clamping voltage (Vc) and are designed to handle high surge currents associated with transient events. They are optimized for fast response times and high-energy absorption capabilities.　　• Zener Diodes: Zener diodes have a well-defined breakdown voltage (Vz) at which they operate. The voltage across a Zener diode remains relatively constant over a wide range of currents when reverse biased, making them suitable for voltage regulation applications.　　Applications:　　• TVS Diodes: TVS diodes are used in applications requiring protection against voltage transients, such as in power supplies, communication ports (USB, Ethernet), data lines, and electronic equipment exposed to harsh environments or prone to ESD.　　• Zener Diodes: Zener diodes find applications in voltage regulation circuits, voltage references, voltage clamping circuits, reverse voltage protection, and precision voltage measurement circuits.　　How do TVS diodes work?　　TVS diodes work by providing a low-impedance path for excess voltage, diverting it away from sensitive electronic components and limiting the voltage across them to safe levels. They operate based on two main mechanisms: avalanche breakdown and Zener breakdown. Here’s how TVS diodes work:　　Avalanche BreakdownTVS diodes are typically fabricated with a highly doped semiconductor material that has a narrow depletion region. When the diode is reverse-biased (i.e., the voltage applied across it is in the opposite direction of its normal operation), the electric field across the depletion region increases.　　If the applied reverse voltage exceeds a certain threshold known as the breakdown voltage (also called clamping voltage or avalanche voltage), the strong electric field can accelerate charge carriers (electrons and holes) to high energies.　　These high-energy charge carriers collide with other atoms in the semiconductor lattice, generating additional charge carriers through impact ionization. This process cascades, resulting in a sudden increase in current flow through the diode.　　As a result, the TVS diode effectively clamps the voltage across its terminals at the breakdown voltage, providing a low-impedance path for excess current and limiting the voltage seen by the protected circuit.　　Zener BreakdownIn addition to avalanche breakdown, some TVS diodes may also utilize Zener breakdown to provide transient voltage suppression. Zener breakdown occurs when the reverse-biased diode operates in its Zener breakdown region.　　In this region, the diode behaves as a voltage regulator, maintaining a relatively constant voltage (known as the Zener voltage) across its terminals. When the applied reverse voltage exceeds the Zener voltage, the diode starts conducting heavily, effectively clamping the voltage across it.　　What causes a TVS diode to fail?TVS diodes are designed to withstand high levels of transient voltage and provide protection to sensitive electronic components. However, like any electronic component, TVS diodes can fail under certain conditions. Here are some common causes of TVS diode failure:　　Overvoltage Conditions: If the transient voltage exceeds the maximum rated clamping voltage (avalanche or Zener breakdown voltage) of the TVS diode, it may fail to suppress the transient effectively. This can happen if the transient event is exceptionally severe or if the TVS diode is underspecified for the application.　　Overcurrent Conditions: Excessive current flowing through the TVS diode, either due to a high-energy transient event or a sustained fault condition, can cause the diode to fail. Overcurrent can lead to thermal overstress, causing the diode to overheat and potentially short or open circuit.　　Reverse Polarity: Applying a reverse voltage beyond the maximum reverse voltage rating of the TVS diode can cause it to fail. This can occur due to improper installation or incorrect wiring in the circuit.　　End-of-Life Wear-Out: Like all semiconductor devices, TVS diodes have a limited lifespan, and their performance may degrade over time due to factors such as aging, temperature cycling, and electrical stress. As the diode approaches the end of its life, its ability to suppress transients effectively may diminish, leading to failure.　　Excessive Power Dissipation: TVS diodes are specified with maximum power dissipation ratings. Exceeding these ratings, either due to sustained overvoltage conditions or prolonged exposure to transient events, can cause the diode to overheat and fail.　　Manufacturing Defects: Rarely, TVS diodes may fail due to manufacturing defects such as material impurities, processing errors, or incomplete encapsulation. These defects can compromise the electrical and thermal performance of the diode, leading to premature failure.　　Improper Handling or Installation: Mishandling or improper installation of TVS diodes, such as mechanical stress during assembly, soldering defects, or exposure to corrosive environments, can lead to physical damage or degradation of the diode, resulting in failure.　　ConclusionTVS diodes are essential components in protecting electronic devices and systems from voltage transients. Their ability to clamp voltages and divert excess current away from sensitive components plays a vital role in ensuring the reliability and durability of modern electronics. As the demand for high-performance and reliable electronic products continues to grow, the importance of TVS diodes in safeguarding electronics will only increase, making them indispensable in today’s interconnected world.
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Release time：2024-07-16 13:08 reading：590 Continue reading>>
Understanding Schottky Diode : A Comprehensive Guide
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Understanding Schottky Diode : A Comprehensive Guide

　　Schottky diode is semiconductor devices with a unique structure and properties that make it indispensable in various electronic applications. Understanding their principles of operation, advantages, and applications is crucial for engineers and enthusiasts alike. This guide aims to provide a detailed overview of Schottky diodes to help readers grasp their significance in modern electronics.　　What is a Schottky diode?A Schottky diode, named after the physicist Walter H. Schottky, is a type of semiconductor diode with a unique construction and operating principle. Schottky diodes are also commonly referred to as Schottky barrier diodes or hot carrier diodes. Unlike conventional p-n junction diodes, which consist of a junction between p-type and n-type semiconductor materials, Schottky diodes are formed by the junction of a metal (often a transition metal like platinum or tungsten) with a semiconductor material (usually silicon).　　What is a Schottky diode used for?Schottky diodes find application in a wide range of electronic circuits. They are commonly used in:　　Rectification circuits: Schottky diodes are efficient rectifiers due to their low forward voltage drop, making them ideal for converting alternating current (AC) to direct current (DC) in power supplies and voltage regulators.　　High-frequency applications: Their fast switching speed and low junction capacitance make Schottky diodes suitable for high-frequency applications such as RF (radio frequency) detectors, mixers, and oscillators.　　Protection circuits: Schottky diodes are often employed to protect sensitive electronic components from voltage spikes and reverse polarity damage in circuits such as overvoltage protection and reverse current protection.　　What are the advantages and disadvantages of Schottky diode?Advantages:　　Low forward voltage drop: Typically around 0.3 V, leading to lower power losses and higher efficiency in rectification applications.　　Fast switching speed: Due to their majority carrier conduction mechanism, Schottky diodes have minimal minority carrier storage time, resulting in rapid switching characteristics.　　High temperature operation: Schottky diodes can operate at higher temperatures compared to conventional silicon diodes.　　Compact size: Their smaller junction area and simpler construction allow for compact designs in integrated circuits.　　Disadvantages:　　Lower reverse breakdown voltage: Schottky diodes typically have lower reverse breakdown voltage ratings compared to silicon diodes, limiting their use in high-voltage applications.　　Higher leakage current: Schottky diodes exhibit higher reverse leakage current compared to silicon diodes, which may be undesirable in certain low-power applications.　　Sensitivity to temperature variations: The forward voltage drop of Schottky diodes is sensitive to temperature changes, which can affect their performance in some applications.　　What is the difference between Schottky diode and silicon diode?The primary differences between Schottky diodes and silicon diodes lie in their construction, operating principles, and resulting characteristics:　　Construction:　　Schottky Diode: Schottky diodes are formed by the junction of a metal (usually a transition metal like platinum or tungsten) with a semiconductor material (typically silicon). This metal-semiconductor junction is known as a Schottky barrier.　　Silicon Diode: Silicon diodes consist of a junction between two differently doped regions of silicon semiconductor material, forming a p-n junction.　　Operating Principle:　　Schottky Diode: Schottky diodes conduct current primarily through majority carriers (electrons for n-type semiconductor), resulting in faster switching speeds and lower forward voltage drops. They do not rely on the diffusion of minority carriers for conduction.　　Silicon Diode: Silicon diodes conduct current through both majority and minority carriers. In forward bias, majority carriers (holes in the p-type region and electrons in the n-type region) flow across the junction, while in reverse bias, minority carriers (electrons in the p-type region and holes in the n-type region) contribute to the reverse current flow.　　Forward Voltage Drop:　　Schottky Diode: Schottky diodes typically have a lower forward voltage drop (around 0.3 V) compared to silicon diodes. This is due to the absence of the depletion region present in p-n junction diodes, resulting in lower power losses and higher efficiency in rectification applications.　　Silicon Diode: Silicon diodes have a higher forward voltage drop (around 0.6 V to 0.7 V for standard silicon diodes). This is primarily because of the depletion region formed at the p-n junction, which requires a certain voltage to overcome before significant current can flow.　　Reverse Breakdown Voltage:　　Schottky Diode: Schottky diodes typically have lower reverse breakdown voltage ratings compared to silicon diodes. This limits their use in high-voltage applications.　　Silicon Diode: Silicon diodes generally have higher reverse breakdown voltage ratings, making them suitable for high-voltage applications where reverse bias conditions are encountered.　　Switching Speed:　　Schottky Diode: Due to their majority carrier conduction mechanism and absence of minority carrier storage time, Schottky diodes have minimal switching times, making them suitable for high-frequency applications.　　Silicon Diode: Silicon diodes typically have slower switching speeds compared to Schottky diodes due to the presence of minority carrier storage time.　　What is the working principle of Schottky diode?　　The operation of a Schottky diode is based on the formation of a metal-semiconductor junction, also known as a Schottky barrier. When a metal (such as platinum or tungsten) is brought into contact with a semiconductor material (usually silicon), a potential barrier is formed at the interface due to differences in the work functions of the metal and semiconductor. This barrier prevents majority carriers (electrons in an n-type semiconductor) from easily crossing the junction under reverse bias conditions.　　Under forward bias, electrons from the semiconductor flow into the metal, while holes from the metal flow into the semiconductor, resulting in current flow across the junction. Since Schottky diodes do not rely on the diffusion of minority carriers for conduction, they have a lower forward voltage drop and faster switching speed compared to conventional silicon diodes.　　How do I identify a Schottky diode?Schottky diodes can be identified by several characteristics:　　Forward voltage drop: Schottky diodes typically have a lower forward voltage drop (around 0.3 V) compared to silicon diodes.　　Symbol: In circuit diagrams, Schottky diodes are represented by a symbol resembling a regular diode but with a flat line or bar across the cathode end, indicating the metal-semiconductor junction.　　Markings: Schottky diodes are often labeled with their part number and may include the letters “SCH” or “SKY” in the part number to indicate their Schottky nature.　　Datasheets: Referencing the datasheet of a diode can provide information on its characteristics, including whether it is a Schottky diode.　　How do I choose a Schottky diode?When choosing a Schottky diode for a specific application, consider the following factors:　　Forward voltage drop: Select a diode with a forward voltage drop suitable for your application requirements to minimize power losses.　　Reverse voltage rating: Ensure that the diode’s reverse voltage rating exceeds the maximum reverse voltage expected in your circuit.　　Forward current rating: Choose a diode with a forward current rating sufficient for the maximum current expected in your circuit.　　Switching speed: Consider the switching speed requirements of your application and choose a diode with a fast enough recovery time.　　Temperature range: Verify that the diode can operate within the temperature range of your application.　　What is the maximum voltage of a Schottky diode?The maximum voltage (reverse voltage rating) of a Schottky diode varies depending on its specific construction and design. Commonly available Schottky diodes have reverse voltage ratings ranging from a few volts to a few hundred volts. It is essential to consult the datasheet of the diode to determine its maximum voltage rating and ensure it meets the requirements of your application.　　Conclusion　　Schottky diodes play a vital role in modern electronics, offering advantages such as low forward voltage drop, fast switching speed, and suitability for high-frequency applications. While they have limitations such as lower reverse breakdown voltage and higher leakage current compared to silicon diodes, their unique properties make them indispensable in various circuits. Understanding the principles of operation and key characteristics of Schottky diodes is essential for selecting the right component for specific applications and maximizing their performance in electronic designs.
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Release time：2024-07-02 13:09 reading：498 Continue reading>>
What are <span style='color:red'>diode</span>s in the circuit board?
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What are diodes in the circuit board?

　　PCB diode is one of the most established and most significant electronic gadgets, in spite of the fact that it isn’t quite as well known as its cousin, the semiconductor. Utilized in a wide range of electrical and electronic frameworks, the diode capabilities as a one-way valve for electric flow — it just permits flow to stream in one bearing. This is valuable in changing AC over completely to DC, handling high recurrence signals, controlling voltages, and in different applications.　　There are two fundamental sorts of PCB diode. One is an electron tube like the triode. The other kind purposes semiconductors, similar to the semiconductor. Both were concocted from the get-go in the twentieth hundred years.　　In this article, you can know everything about PCB diode and related information about this topic.　　What are diodes in the circuit board?　　A PCB diode is a semiconductor gadget that basically goes about as a one-way switch for current. It permits current to stream effectively in one course, however seriously limits current from streaming the other way.　　PCB diode is otherwise called rectifier since it changes substituting current (ac) into throbbing direct current (dc). PCB diode is appraised by their sort, voltage, and current limit.　　PCB diode is not set in stone by an anode (positive lead) and cathode (adverse lead). PCB diode permits current to stream just when positive voltage is applied to the anode. An assortment of diode setups are shown in this realistic.　　PCB diode is accessible in different setups. From left: metal case, stud mount, plastic case with band, plastic case with chamfer, glass case. A PCB diode is the ‘one way’ sign for electrical circuits. The current is permitted to just travel through the PCB diode in one course. Every diode has a positive end, the anode, and an adverse end, the cathode. Current streams from the anode to the cathode, however not the reverse way around.　　Why we should use PCB diodes?　　A PCB diode is a gadget that permits current to stream in one heading however not the other. This is accomplished through an underlying electric field. Albeit the earliest diodes comprised of scorching wires going through the center of a metal chamber which itself was situated within a glass vacuum tube, present day diodes are semiconductor diodes. As the name recommends, these are produced using semiconductor materials, principally doped silicon.　　The most normal application is by a wide margin the utilization of PCB diode for the correction of AC capacity to DC power. Utilizing diodes, various kinds of rectifier circuits can be made, the most fundamental of which are half wave, full wave community tapped, and full scaffold rectifiers. These are critical in hardware power supplies – for instance, a PC’s charger – where an air conditioner current, which comes from the mains power supply, should be changed over completely to a DC current which can then be put away.　　Delicate electronic gadgets should be safeguarded from floods in voltage, and the diode is ideal for this. When utilized as voltage insurance gadgets, PCB diode is nonconducting, notwithstanding, they promptly short any high-voltage spike by sending it to the ground where it can’t hurt delicate coordinated circuits. For this utilization, particular diodes known as “transient voltage silencers” are planned. These can deal with huge power spikes throughout brief time frame periods which would ordinarily harm touchy parts.　　Characteristics of diode　　Fundamental static attributes of PCB diode are the forward voltage VF and forward current IF, and the opposite voltage and current VR and IR.　　The region encompassed by the orange ran line in the chart on the right shows the usable area of amending diodes. In particular, this is the region inside the scope of admissible IF, and inside the breakdown voltage range in the opposite bearing. It ought to be noticed that the region encased by the green ran line is the usable area of Zener diodes, albeit these are not examined in this part. This region isn’t usable for different diodes, and assuming this region is placed unbounded on the IR, gadget disappointment might happen.　　Reverse Recovery Time is when, from the state wherein a voltage is applied in the forward heading and forward current In the event that is streaming, the voltage is shifted to the opposite course and the converse current IR gets back to the consistent state (basically zero).　　As shown in the graph on the right, when the gadget changes from the ON-state in which an In the event that is streaming to the OFF-state, in a perfect world IF would quickly go to nothing. Yet, in reality, zero is passed, and a converse current IR streams quickly, which recuperates to focus in time Reverse Recovery Time. The more limited Reverse Recovery Time is, the better is the gadget trademark.　　The capacitance Ct is the capacitance of the actual diode, and has a similar impact as a capacitor. As in the chart on the right, when a PCB diode is turned here and there, assuming Ct is huge, the supposed adjusting of the waveform turns out to be more articulated, and sometimes there might be the issue that the gadget starts switch off activity before an applied voltage arrives at a full level because of time constants. In a rapid exchanging circuit, diodes with a low Ct are attractive.
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Release time：2023-12-21 16:23 reading：1458 Continue reading>>
ROHM’s New High Power 120W Laser Diode for LiDAR: Increasing Measurement Range by Reducing Wavelength Temperature Dependence by 66%
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ROHM’s New High Power 120W Laser Diode for LiDAR: Increasing Measurement Range by Reducing Wavelength Temperature Dependence by 66%

　　ROHM has developed a high-power laser diode - the RLD90QZW8. It is ideal for industrial equipment and consumer applications requiring distance measurement and spatial recognition.　　In recent years, LiDAR is being increasingly adopted in a wide range of applications that require automation - including AGVs (Automated Guided Vehicles), robot vacuums, and autonomous vehicles - where it is necessary to accurately measure distance and recognize space. In this context, there is a need to improve the performance and output of laser diodes when used as light sources to increase detection distance and accuracy.　　To meet this demand, ROHM established original patented technology to achieve a narrower emission width that contributes to longer range and higher accuracy in LiDAR applications. In 2019, ROHM released a 25W laser diode RLD90QZW5 followed by a 75W laser diode RLD90QZW3 in 2021. In response to the growing market demand for even higher output, ROHM developed a new 120W laser diode.　　The RLD90QZW8 is a 120W infrared high output laser diode developed for LiDAR used in distance measurement and spatial recognition in 3D ToF systems. Original device development technology allows ROHM to reduce the temperature dependence of the laser wavelength by 66% over general products, to just ⊿11.6nm (Ave. 0.10nm/°C). This makes it possible to narrow the bandpass filter while extending the detection range of LiDAR. At the same time, a uniform light intensity of 97% is achieved over the industry's smallest class* of emission width of 270µm, representing a range of 264µm that contributes to higher resolution. Additional features that include high power-to-light conversion efficiency (PCE) enables efficient optical output that contributes to lower power consumption in LiDAR applications.　　A variety of design support materials necessary for integrating and evaluating the new product is available free of charge on ROHM’s website that facilitate market introduction. In order to drive laser diodes with high nano-second order speed required for LiDAR applications, ROHM developed a reference design available now that combines ROHM’s 150V EcoGaN™ HEMT and gate drivers.　　ROHM has also acquired certification under the IATF 16949 automotive quality management standard for both front-end and back-end processes at its manufacturing facilities. As a result, product development of laser diodes for automotive applications (AEC-Q102 compliant) is underway, with commercialization planned by the end of 2024.　　Application ExamplesConsumer: Robot vacuums, Laser rangefinders　　Industrial: AGVs (Automated Guided Vehicles), service robots, 3D monitoring systems (sensors for human/object detection)　　and more...　　Support PageA broad range of design data is available on ROHM’s website free of charge, including simulation (SPICE) models, board development data, and application notes on drive circuit design necessary for integration and evaluation that supports quick market introduction.　　Reference DesignsReference designs for LiDAR incorporating these new products together with ROHM’s 150V EcoGaN™ and high-speed gate driver (BD2311NVX series) are now available on ROHM’s website.　　Reference Design Part Nos.　　・REFLD002-1　　(120W High Power Laser Diode [RLD90QZW8] built-in)　　・REFLD002-2　　(75W High Power Laser Diode [RLD90QZW3] built-in)　　EcoGaN™ is a trademark or registered trademark of ROHM Co., Ltd.　　Online Sales InformationSales Launch Date: September 2023　　Pricing: $30.0/unit (samples, excluding tax)　　Online Distributors: DigiKey, Mouser and Farnell　　The product will be offered at other online distributors as they become available.　　Target Product: RLD90QZW8-00A　　Online Distributors　　TerminologyLiDAR　　Short for Light Detection and Ranging, a type of application that uses ToF (Time of Flight) system (comprised of a light source and ToF or image sensor) to sense ambient conditions.　　3D ToF System　　An abbreviation for Time of Flight, a spatial measurement system which, as its name implies, measures the flight time of a light source. Refers to a system that uses ToF to perform 3D spatial recognition and distance measurement.　　Bandpass Filter　　A filter that allows only signals in a specific light wavelength band to pass through. In optical devices, a narrow bandpass filter range allows for efficient extraction of light close to the peak waveform. This minimizes the effects of disturbance light noise such as sunlight, enabling lower power consumption at the same distance or longer range at the same optical output.　　IATF 16949　　IATF is the short for International Automotive Task Force, a quality management standard for the automotive industry. Based on the international standard ISO 9001 with additional specific requirements, compliance with IATF 16949 enables automakers and suppliers to meet international quality standards.　　AEC-Q102　　AEC stands for Automotive Electronics Council, an organization (comprised of major automotive manufacturers and US electronic component makers) responsible for establishing reliability standards for automotive electronics. Q102 is a standard specifically intended for optical devices.
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Release time：2023-12-05 15:21 reading：1891 Continue reading>>
What is a light emitting <span style='color:red'>diode</span>? What are the types of light emitting <span style='color:red'>diode</span>?
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What is a light emitting diode? What are the types of light emitting diode?

　　Light-Emitting Diodes (LEDs) are semiconductor devices that produce light when electricity passes through them. They operate on electroluminescence, emitting efficient, durable, and long-lasting illumination.　　Known for their energy efficiency and small size, LEDs find widespread use in lighting, displays, and indicators across industries. Their diverse color range, durability, and environmental friendliness make them pivotal in modern lighting solutions, from household lighting to advanced technological applications.　　LEDs continue to drive innovation in illumination, offering versatility, longevity, and reduced energy consumption, reshaping how we light our world. In this article, we will introduce about Light-Emitting Diodes.　　What is a light emitting diode?A light-emitting diode (LED) is a semiconductor device that emits light when an electric current passes through it. It works on the principle of electroluminescence, where the movement of electrons within the semiconductor material releases energy in the form of photons (light).　　What are the types of light emitting diode?Light-emitting diodes (LEDs) come in various types, each designed for specific applications or to offer different functionalities. Here are some common types of LEDs:　　Through-Hole LEDs: These are traditional LEDs with two wire leads, often used for indicator lights on electronic devices. They can emit different colors such as red, green, blue, yellow, and others.　　Surface-Mount LEDs (SMD LEDs): These LEDs are smaller and more suitable for automated assembly processes. They come in various sizes, from standard packages like 1206, 0805, 0603 to smaller miniaturized versions.　　High-Power LEDs: These LEDs produce higher levels of light output and are used in applications requiring intense illumination, such as outdoor lighting, spotlights, automotive lighting, and industrial lighting.　　RGB LEDs: These contain red, green, and blue elements within the same package, allowing them to emit a wide range of colors. By adjusting the intensity of each color, they can produce a spectrum of hues.　　UV (Ultraviolet) LEDs: Emitting ultraviolet light, these LEDs find applications in sterilization, forensic analysis, curing, and medical devices.　　IR (Infrared) LEDs: Emitting infrared light, these LEDs are used in applications like remote controls, sensors, night vision devices, and communication systems.　　OLEDs (Organic Light-Emitting Diodes): Unlike traditional LEDs, OLEDs use organic compounds to emit light. They’re used in displays, TVs, smartphones, and lighting panels.　　Miniature LEDs: These are extremely small LEDs often used in applications like indicator lights on circuit boards, small-scale lighting, and wearable technology.　　COB LEDs (Chip-on-Board LEDs): These are multiple LED chips bonded directly to a substrate to form a single module. They offer higher light density and improved thermal management, commonly used in lighting applications.　　Smart LEDs: These are programmable LEDs that can change colors, brightness, and effects through control systems. They are used in decorative lighting, stage lighting, and smart home applications.Each type of LED has its own characteristics, advantages, and limitations, making them suitable for various applications across industries. The choice of LED type depends on factors such as brightness requirements, color range, energy efficiency, size constraints, and specific application needs.　　What are the characteristics of LEDs?1. Energy Efficiency: LEDs are highly energy-efficient, converting a higher percentage of electricity into light compared to traditional lighting sources like incandescent bulbs.　　2. Longevity: They have a long lifespan, typically lasting tens of thousands of hours, contributing to reduced maintenance and replacement costs.　　3. Durability: LEDs are solid-state devices, resistant to shock, vibration, and frequent switching. This durability makes them suitable for various applications.　　4. Small Size: LEDs are compact and come in various sizes and shapes, enabling their use in diverse applications, from indicator lights to large-scale lighting fixtures.　　What are the applications of light-emitting diode?　　Light-emitting diodes (LEDs) have found widespread applications across various industries due to their numerous advantages, such as energy efficiency, durability, long lifespan, and versatility in emitting different colors. Some key applications of LEDs include:　　● Lighting:　　• General Illumination: Used in homes, offices, and public spaces for energy-efficient lighting solutions.　　• Street Lighting: LEDs are used in streetlights due to their longevity and energy efficiency, reducing maintenance costs.　　• Automotive Lighting: Found in headlights, taillights, brake lights, interior lighting, and indicators in vehicles.　　• Architectural Lighting: Used for accent lighting, highlighting architectural features, and creating specific atmospheres in buildings.　　● Display and Signage:　　• Electronic Displays: LED screens in TVs, computer monitors, and large-scale displays due to their high brightness and color accuracy.　　• Outdoor Displays: Used in billboards, scoreboards, and outdoor signage due to their visibility in various lighting conditions.　　• Indicators: Small LEDs serve as indicator lights in devices, appliances, control panels, and electronic systems.　　● Decorative and Entertainment:　　• Decorative Lighting: LEDs are used for decorative purposes, such as in holiday lights, interior decor, and artistic installations.　　• Stage Lighting: LEDs provide colorful and dynamic lighting effects in theaters, concerts, and events.　　• Lighting Effects: Used in clubs, parties, and entertainment venues for dynamic lighting effects.　　● Specialty and Scientific Applications:　　• UV (Ultraviolet) LEDs: Used in sterilization, curing, forensic analysis, and medical devices.　　• IR (Infrared) LEDs: Employed in remote controls, sensors, night vision devices, and communication systems.　　• Plant Growth Lighting: Specific LED wavelengths aid in indoor plant growth for horticulture.　　● Emerging Applications:　　• Smart Lighting: Connected LED systems that can be controlled and programmed for various effects, integrated with smart home systems.　　• Wearable Technology: LEDs integrated into clothing, accessories, and wearable devices for visual enhancements or notifications.The versatility of LEDs and ongoing advancements in LED technology continue to expand their applications into new areas, making them increasingly prevalent across various industries.　　What is the difference between light emitting diode and Zener diode?　　The primary difference between a light-emitting diode (LED) and a Zener diode lies in their fundamental functions and operating principles:　　Light-Emitting Diode (LED):　　Function: Converts electrical energy into light energy when forward biased.　　Operation: When a forward voltage is applied across the LED, it allows current to flow, causing electrons to recombine with electron holes in the semiconductor material, emitting photons (light) in the process.　　Usage: Typically used for illumination, indicators, displays, and lighting purposes.　　Polarity: An LED is polarized and operates only in the forward direction.　　Zener Diode:　　Function: Allows current to flow in reverse bias at a specified voltage, providing a stable reference voltage for voltage regulation.　　Operation: In reverse bias, when the voltage across the Zener diode reaches its breakdown voltage (Zener voltage), it conducts current in the reverse direction, maintaining a nearly constant voltage across it.　　Usage: Primarily used for voltage regulation, protection against voltage spikes, and as a voltage reference in circuits.　　Polarity: Zener diodes are bidirectional and conduct current in both forward and reverse directions, but they are primarily used in the reverse bias mode for their voltage regulation function.In summary, while both are semiconductor diodes, their functions, operating principles, and applications differ significantly. LEDs primarily emit light when forward biased, while Zener diodes are used for voltage regulation and operate in reverse bias by allowing controlled current flow above a specific breakdown voltage.　　What material is used in the light emitting diode?Light-emitting diodes (LEDs) are primarily made from semiconductor materials that emit light when an electric current passes through them. The choice of semiconductor materials is crucial in determining the color and efficiency of the emitted light. Some of the common semiconductor materials used in LEDs include:　　Gallium Arsenide (GaAs): Used primarily for red and infrared LEDs.　　Gallium Phosphide (GaP): Used for green and yellow LEDs.　　Gallium Nitride (GaN): Used for blue, green, and white LEDs. GaN-based LEDs have enabled the production of blue LEDs, which, when combined with phosphors, produce white light.　　Indium Gallium Nitride (InGaN): Widely used for blue, green, and white LEDs. The addition of indium to gallium nitride allows for tuning the wavelength of emitted light, enabling the production of different colors.The combination of these semiconductor materials, along with doping techniques and different structures, determines the characteristics of LEDs, including their color, brightness, efficiency, and operating properties. Depending on the desired wavelength and performance, manufacturers select specific semiconductor materials and employ precise fabrication processes to create LEDs for various applications.
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Release time：2023-11-30 10:37 reading：2573 Continue reading>>
Top 10 Global TVS Diode Manufacturers
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Top 10 Global TVS Diode Manufacturers

　　A transient voltage suppressor, or TVS, is a protective device used to protect circuits from sudden spikes in voltage or current. It mainly uses to protect a circuit from overvoltage through placing these TVS devices in parallel with the circuit.　　In this article, there are the top 10 global TVS diode manufacturers for you to take a reference.　　一、Wurth Electronics　　Wuerth Elektronik ICS offers printed circuit board-based solutions for power boards, display and control panels and electronic controls (ICCS). The company supports its customers in industry and the automotive market from the initial idea to serial production of the product and beyond.　　二、ProTek Devices　　ProTek Devices is a leading semiconductor manufacturer of a wide range of high-performance TVS protection products. Its business scope includes Transient Voltage Suppressor arrays (TVS arrays), Steering Diode/TVS arrays, Steering Diodes, Thyristors, Component Modules, SurgeBuster Modules, Chipscale TVS Arrays and EMI Filter/TVS Arrays.　　三、Maxim Integrated　　Maxim Integrated, a subsidiary of Analog Devices, designs, manufactures, and sells analog and mixed-signal integrated circuits for the automotive, industrial, communications, consumer, and computing markets. Maxim’s product portfolio includes power and battery management ICs, sensors, analog ICs, interface ICs, communications solutions, digital ICs, embedded security, and microcontrollers.　　四、Semtech　　Semtech Corporation is a high-performance semiconductor, IoT systems and Cloud connectivity service provider dedicated to delivering high-quality technology solutions. It offers a broad portfolio of low-capacitance TVS arrays to safeguard high-speed data interfaces from transient voltage threats.　　五、Diodes Incorporated　　Diodes Incorporated (Nasdaq: DIOD) is a leading global manufacturer and supplier of high-quality application-specific standard products within the broad discrete, logic, analog, and mixed-signal semiconductor markets. Diodes serves the automotive, industrial, computing, consumer electronics, and communications markets.　　六、KYOCERA AVX　　KYOCERA AVX is a leading international manufacturer and supplier of a vast portfolio of advanced electronic components, including capacitors, inductors, filters, resistors, couplers, diodes, and circuit protection devices, as well as a broad range of innovative sensors, control, connectors and antenna solutions.　　七、STMicroelectronics　　STMicroelectronics NV (STM) is a manufacturer and provider of semiconductors. The company develops, and markets a wide range of products including discrete and standard commodity components, custom devices and semi-custom devices and application-specific standard and integrated circuits.　　八、Vishay　　Vishay is one of the world’s most trusted manufacturers of electronic components. It manufactures discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets.　　九、Littelfuse　　Founded in 1927, Littelfuse is an American electronic manufacturing company headquartered in Chicago, Illinois. The company primarily produces circuit protection products but also provides power semiconductors, heavy-duty switches, magnetic, optical, electromechanical, and temperature sensors, as well as products that provide safe control and distribution of electrical power.　　十、ON Semiconductor　　ON Semiconductor Corp (Onsemi) is a designer, manufacturer, and supplier of semiconductor products and solutions. The company offers products under Power Solutions Group (PSG), the Advanced Solutions Group (ASG) and the Intelligent Sensing Group (ISG).
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Release time：2023-08-28 15:51 reading：2776 Continue reading>>

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