Vishay Semiconductor Diodes Division
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1.5KA20HE3/51
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1.5KA20HE3/51 Product Overview

Introduction

The 1.5KA20HE3/51 is a high-performance, high-reliability TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronics from voltage transients induced by lightning, ESD (electrostatic discharge), and other transient voltage events.

Basic Information Overview

  • Category: Electronic Component
  • Use: Protection against voltage transients
  • Characteristics: High performance, high reliability
  • Package: DO-201AD
  • Essence: Transient voltage suppression
  • Packaging/Quantity: Available in reels or bulk packaging

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 20V
  • Operating Voltage: 17.1V
  • Clamping Voltage: 29.2V
  • Peak Pulse Current: 48.1A
  • Reverse Standoff Voltage: 15V
  • Operating Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 1.5KA20HE3/51 follows the standard pin configuration for DO-201AD package, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Fast response time
  • Low clamping voltage
  • High surge capability
  • RoHS compliant

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • High power handling capability
  • Wide operating temperature range

Disadvantages

  • Sensitive to reverse polarity connection
  • Requires proper heat dissipation in high-power applications

Working Principles

When a transient voltage event occurs, the 1.5KA20HE3/51 diode rapidly conducts, diverting the excess current away from the protected circuitry and clamping the voltage to a safe level. This action helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The 1.5KA20HE3/51 is widely used in various electronic systems including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

  • 1.5KE20CA
  • P6SMB20CA
  • SMAJ20A

In conclusion, the 1.5KA20HE3/51 TVS diode offers reliable protection against transient voltage events and finds extensive use in diverse electronic applications due to its high performance and robust design.

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기술 솔루션에 1.5KA20HE3/51 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the maximum forward current rating of 1.5KA20HE3/51?

    • The maximum forward current rating of 1.5KA20HE3/51 is 1.5A.

  2. What is the reverse voltage rating of 1.5KA20HE3/51?

    • The reverse voltage rating of 1.5KA20HE3/51 is 20V.

  3. What type of diode is 1.5KA20HE3/51?

    • 1.5KA20HE3/51 is a high-efficiency, fast-recovery rectifier diode.

  4. What are the typical applications for 1.5KA20HE3/51?

    • Typical applications for 1.5KA20HE3/51 include freewheeling diodes, snubber diodes, and flyback diodes in power supplies and inverters.

  5. What is the operating temperature range of 1.5KA20HE3/51?

    • The operating temperature range of 1.5KA20HE3/51 is -65°C to +175°C.

  6. Does 1.5KA20HE3/51 require a heatsink for certain applications?

    • Yes, for high-power or high-frequency applications, a heatsink may be required to dissipate heat effectively.

  7. What is the reverse recovery time of 1.5KA20HE3/51?

    • The reverse recovery time of 1.5KA20HE3/51 is typically 35ns.

  8. Is 1.5KA20HE3/51 suitable for use in switching power supplies?

    • Yes, 1.5KA20HE3/51 is suitable for use in switching power supplies due to its fast-recovery characteristics.

  9. Can 1.5KA20HE3/51 be used in automotive electronics applications?

    • Yes, 1.5KA20HE3/51 can be used in automotive electronics applications where its ruggedness and reliability are beneficial.

  10. What are the key advantages of using 1.5KA20HE3/51 in technical solutions?

    • The key advantages of using 1.5KA20HE3/51 include its high efficiency, fast recovery time, and suitability for high-power applications.