Vishay Semiconductor Diodes Division
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SMAJ26CHE3/5A
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SMAJ26CHE3/5A: Product Overview and Analysis

Introduction

The SMAJ26CHE3/5A is a crucial component in the field of electronic devices, offering essential protection against transient voltage spikes. This entry provides an in-depth analysis of the product, covering its category, use, characteristics, packaging, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Component
  • Use: Transient Voltage Suppressor (TVS) Diode
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: DO-214AC (SMA)
  • Essence: Protection against transient voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 400W
  • Breakdown Voltage Range: 26V
  • Operating Voltage: 21.2V
  • Maximum Reverse Leakage Current: 1μA
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ26CHE3/5A follows the standard DO-214AC (SMA) package configuration, with two pins for connection. Pin 1 is the cathode, while pin 2 is the anode.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level.
  • Fast Response Time: Rapid reaction to transient voltage spikes ensures minimal damage to downstream components.
  • High Surge Capability: Able to withstand high surge currents without degradation.

Advantages

  • Reliable Protection: Safeguards sensitive electronic circuits from voltage transients.
  • Compact Design: Small form factor enables integration into space-constrained applications.
  • Wide Operating Temperature Range: Suitable for diverse environmental conditions.

Disadvantages

  • Voltage Limitation: Limited to clamping voltages within its specified range.
  • Single-Directional Protection: Provides protection only for unidirectional voltage transients.

Working Principles

The SMAJ26CHE3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown voltage. This effectively diverts the transient energy away from the protected circuit.

Detailed Application Field Plans

  • Telecommunication Equipment: Protects sensitive communication modules from lightning-induced surges.
  • Industrial Control Systems: Safeguards PLCs and control panels from voltage transients in industrial environments.
  • Automotive Electronics: Used in vehicle electronics to protect against voltage spikes from the electrical system.

Detailed and Complete Alternative Models

  1. P6KE27CA: Similar TVS diode with a higher peak pulse power rating.
  2. 1.5KE30A: Higher voltage TVS diode suitable for applications requiring a higher breakdown voltage.
  3. SMBJ26A: Surface-mount TVS diode with similar characteristics but in a different package.

In conclusion, the SMAJ26CHE3/5A plays a vital role in protecting electronic circuits from transient voltage spikes. Its compact design, reliable performance, and wide application range make it a valuable component in various industries.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMAJ26CHE3/5A en soluciones técnicas

  1. What is SMAJ26CHE3/5A?

    • SMAJ26CHE3/5A is a surface mount transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum voltage rating of SMAJ26CHE3/5A?

    • The maximum voltage rating of SMAJ26CHE3/5A is 26V.

  3. What is the peak pulse power of SMAJ26CHE3/5A?

    • The peak pulse power of SMAJ26CHE3/5A is 400W.

  4. What are the typical applications of SMAJ26CHE3/5A?

    • SMAJ26CHE3/5A is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial controls to protect against voltage surges and ESD events.

  5. What is the clamping voltage of SMAJ26CHE3/5A?

    • The clamping voltage of SMAJ26CHE3/5A is typically around 34.4V at 1A.

  6. How does SMAJ26CHE3/5A provide protection?

    • SMAJ26CHE3/5A provides protection by diverting excessive current away from sensitive components when a voltage surge occurs, thus preventing damage to the circuit.

  7. What is the operating temperature range of SMAJ26CHE3/5A?

    • The operating temperature range of SMAJ26CHE3/5A is usually between -55°C to 150°C.

  8. Can SMAJ26CHE3/5A be used for high-speed data lines?

    • Yes, SMAJ26CHE3/5A can be used for high-speed data lines to protect against transient voltage events.

  9. Is SMAJ26CHE3/5A RoHS compliant?

    • Yes, SMAJ26CHE3/5A is RoHS compliant, making it suitable for use in environmentally conscious designs.

  10. What package type does SMAJ26CHE3/5A come in?

    • SMAJ26CHE3/5A is available in a surface mount DO-214AC (SMA) package for easy integration into PCB designs.