Vishay Semiconductor Diodes Division
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1.5KA27HE3/51
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1.5KA27HE3/51 Product Overview

Introduction

The 1.5KA27HE3/51 is a high-performance TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronics from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Basic Information Overview

  • Category: Electronic Component
  • Use: Protection against voltage transients
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: DO-201AD
  • Essence: Safeguarding electronic circuits from voltage spikes
  • Packaging/Quantity: Available in reels of 1500 units

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 27V
  • Operating Voltage: 23.8V
  • Clamping Voltage: 38.9V
  • Peak Pulse Current: 60.6A
  • Reverse Standoff Voltage: 21.7V
  • Operating Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 1.5KA27HE3/51 features a standard DO-201AD package with two leads. The anode is connected to the positive terminal, while the cathode is connected to the negative terminal.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient voltages to safe levels.
  • Fast Response Time: Rapid reaction to transient events ensures minimal impact on protected circuits.
  • High Surge Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • High surge capability

Disadvantages

  • Clamping voltage may be higher than some alternative models
  • Sensitive to reverse polarity connection

Working Principles

When a transient voltage event occurs, the 1.5KA27HE3/51 conducts current to divert the excess energy away from the protected circuit. This action effectively limits the voltage across the circuit to a safe level, protecting it from damage.

Detailed Application Field Plans

The 1.5KA27HE3/51 is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • 1.5KE27CA: Similar peak power rating and breakdown voltage
  • P6SMB27CA: Surface mount alternative with comparable specifications
  • SMFJ27A: Low-profile alternative for space-constrained applications

In conclusion, the 1.5KA27HE3/51 is a reliable TVS diode offering robust protection against transient voltage events, making it an essential component in safeguarding sensitive electronic circuits.

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技術ソリューションにおける 1.5KA27HE3/51 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the maximum forward voltage of 1.5KA27HE3/51?

    • The maximum forward voltage of 1.5KA27HE3/51 is typically 1.7V at 1A.

  2. What is the maximum reverse current of 1.5KA27HE3/51?

    • The maximum reverse current of 1.5KA27HE3/51 is typically 10µA at the rated voltage.

  3. What is the peak pulse power dissipation of 1.5KA27HE3/51?

    • The peak pulse power dissipation of 1.5KA27HE3/51 is 1500W for a 10/1000µs waveform.

  4. What are the typical applications for 1.5KA27HE3/51?

    • Typical applications for 1.5KA27HE3/51 include surge protection in telecommunications, industrial equipment, and consumer electronics.

  5. What is the operating temperature range of 1.5KA27HE3/51?

    • The operating temperature range of 1.5KA27HE3/51 is -55°C to +175°C.

  6. What is the breakdown voltage of 1.5KA27HE3/51?

    • The breakdown voltage of 1.5KA27HE3/51 is 30.8V at 1mA.

  7. Does 1.5KA27HE3/51 have RoHS compliance?

    • Yes, 1.5KA27HE3/51 is compliant with the Restriction of Hazardous Substances (RoHS) directive.

  8. What is the package type of 1.5KA27HE3/51?

    • 1.5KA27HE3/51 is available in a DO-201AD (DO-27) package.

  9. Is 1.5KA27HE3/51 suitable for high-reliability applications?

    • Yes, 1.5KA27HE3/51 is suitable for high-reliability applications due to its robust construction and performance characteristics.

  10. What are the key differences between 1.5KA27HE3/51 and similar diodes in its class?

    • The key differences include its peak pulse power dissipation, forward voltage, and breakdown voltage, which make it suitable for specific technical solutions.