Vishay Semiconductor Diodes Division
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SMA5J12-E3/5A
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SMA5J12-E3/5A

Product Overview

  • Category: Diode
  • Use: Overvoltage protection
  • Characteristics: High surge capability, low clamping voltage
  • Package: DO-214AC (SMA)
  • Essence: Transient Voltage Suppressor (TVS) diode
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 5000W
  • Breakdown Voltage: 12V
  • Maximum Clamping Voltage: 19.9V
  • Operating Temperature Range: -55°C to +150°C
  • RoHS Compliant: Yes

Detailed Pin Configuration

The SMA5J12-E3/5A has two pins in a standard DO-214AC package.

Functional Features

  • Provides overvoltage protection by diverting excessive current away from sensitive components
  • Fast response time to transient voltage events
  • Low leakage current and clamping voltage

Advantages and Disadvantages

  • Advantages:
    • High surge capability
    • Low clamping voltage
    • RoHS compliant
  • Disadvantages:
    • Sensitive to reverse bias conditions
    • Limited to low voltage applications

Working Principles

The SMA5J12-E3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds its breakdown voltage, protecting downstream components.

Detailed Application Field Plans

This diode is commonly used in electronic circuits to protect sensitive components from voltage transients induced by lightning, ESD, or inductive load switching. It finds applications in telecommunications equipment, industrial control systems, and automotive electronics.

Detailed and Complete Alternative Models

  • Alternative Model 1: P6KE12CA
    • Breakdown Voltage: 12V
    • Peak Pulse Power: 600W
    • Package: DO-15
  • Alternative Model 2: 1.5KE12CA
    • Breakdown Voltage: 12V
    • Peak Pulse Power: 1500W
    • Package: DO-201

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMA5J12-E3/5A en soluciones técnicas

  1. What is the maximum voltage rating of SMA5J12-E3/5A?

    • The maximum voltage rating of SMA5J12-E3/5A is 12V.

  2. What is the peak pulse power dissipation of SMA5J12-E3/5A?

    • The peak pulse power dissipation of SMA5J12-E3/5A is 5000W.

  3. What is the typical clamping voltage of SMA5J12-E3/5A?

    • The typical clamping voltage of SMA5J12-E3/5A is 19.9V at 10A.

  4. What is the forward surge current of SMA5J12-E3/5A?

    • The forward surge current of SMA5J12-E3/5A is 100A.

  5. What is the operating temperature range of SMA5J12-E3/5A?

    • The operating temperature range of SMA5J12-E3/5A is -55°C to +150°C.

  6. What is the package type of SMA5J12-E3/5A?

    • SMA5J12-E3/5A comes in a DO-214AC (SMA) package.

  7. Is SMA5J12-E3/5A RoHS compliant?

    • Yes, SMA5J12-E3/5A is RoHS compliant.

  8. What are the typical applications for SMA5J12-E3/5A?

    • SMA5J12-E3/5A is commonly used in surge protection for sensitive electronics, such as in telecommunications equipment, industrial control systems, and automotive electronics.

  9. Does SMA5J12-E3/5A have a low leakage current?

    • Yes, SMA5J12-E3/5A has a low leakage current, making it suitable for use in low-power applications.

  10. Can SMA5J12-E3/5A be used for overvoltage protection in power supplies?

    • Yes, SMA5J12-E3/5A is suitable for overvoltage protection in power supplies due to its high peak pulse power dissipation and low clamping voltage characteristics.