Vishay Semiconductor Diodes Division
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SMBJ20A-M3/5B
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SMBJ20A-M3/5B

Introduction

The SMBJ20A-M3/5B is a diode belonging to the category of transient voltage suppressors (TVS). This diode is designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. The SMBJ20A-M3/5B offers characteristics such as high surge capability, low clamping voltage, and fast response time, making it suitable for various applications in different industries.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: DO-214AA (SMB)
  • Essence: Silicon-based TVS diode
  • Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

  • Peak Pulse Power: 600W
  • Breakdown Voltage: 20V
  • Operating Voltage: 17.1V
  • Clamping Voltage: 29.2V
  • Peak Pulse Current: 34.5A
  • Reverse Standoff Voltage: 20V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ20A-M3/5B diode has a standard DO-214AA (SMB) package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
  • Fast Response Time: Rapid reaction to transient events ensures minimal impact on the protected circuitry.
  • High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against transient voltage events
  • Fast response time
  • High surge capability

Disadvantages

  • Limited to specific voltage ranges
  • Requires careful consideration of reverse standoff voltage

Working Principles

The SMBJ20A-M3/5B operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting excess current away from the protected circuitry and limiting the voltage across it.

Detailed Application Field Plans

The SMBJ20A-M3/5B is widely used in various applications, including: - Consumer electronics - Telecommunications equipment - Industrial automation systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

  • SMBJ5.0A-M3/5B: 5V Breakdown Voltage TVS Diode
  • SMBJ10A-M3/5B: 10V Breakdown Voltage TVS Diode
  • SMBJ30A-M3/5B: 30V Breakdown Voltage TVS Diode
  • SMBJ40A-M3/5B: 40V Breakdown Voltage TVS Diode

In conclusion, the SMBJ20A-M3/5B transient voltage suppressor diode offers reliable protection against transient voltage events, making it a crucial component in safeguarding sensitive electronic circuits across various industries. Its high surge capability, fast response time, and effective transient voltage suppression make it a valuable asset in ensuring the reliability and longevity of electronic systems.

Énumérez 10 questions et réponses courantes liées à l'application de SMBJ20A-M3/5B dans les solutions techniques

Sure, here are 10 common questions and answers related to the application of SMBJ20A-M3/5B in technical solutions:

  1. What is the maximum peak pulse power dissipation of SMBJ20A-M3/5B?

    • The maximum peak pulse power dissipation is 600 watts for a 10/1000μs waveform.

  2. What is the breakdown voltage of SMBJ20A-M3/5B?

    • The breakdown voltage is 22.2 volts minimum.

  3. Can SMBJ20A-M3/5B be used for overvoltage protection in power supply applications?

    • Yes, SMBJ20A-M3/5B is commonly used for overvoltage protection in power supply applications due to its fast response time and high surge capability.

  4. What is the typical clamping voltage of SMBJ20A-M3/5B?

    • The typical clamping voltage is 32.2 volts at 14A.

  5. Is SMBJ20A-M3/5B suitable for protecting sensitive electronic equipment from ESD (electrostatic discharge)?

    • Yes, SMBJ20A-M3/5B is often used for ESD protection in applications such as communication systems, industrial controls, and consumer electronics.

  6. What is the operating temperature range of SMBJ20A-M3/5B?

    • The operating temperature range is -55°C to +150°C.

  7. Can SMBJ20A-M3/5B be used for surge protection in automotive electronics?

    • Yes, SMBJ20A-M3/5B is suitable for surge protection in automotive electronics, including in-vehicle infotainment systems and powertrain control modules.

  8. What is the response time of SMBJ20A-M3/5B?

    • The response time is typically less than 1 picosecond.

  9. Does SMBJ20A-M3/5B meet industry standards for surge protection devices?

    • Yes, SMBJ20A-M3/5B complies with industry standards such as IEC 61000-4-5 for surge protection.

  10. In what types of circuit designs is SMBJ20A-M3/5B commonly used?

    • SMBJ20A-M3/5B is commonly used in circuit designs for data lines, telecommunications equipment, and industrial automation systems for transient voltage suppression and surge protection.

I hope these questions and answers are helpful for your technical solutions! Let me know if you need further assistance.