Littelfuse Inc.
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SMCJ28CA
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SMCJ28CA - Product Overview and Detailed Information

Introduction

The SMCJ28CA is a part of the SMCJ series of transient voltage suppressor diodes. These diodes are designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. The SMCJ28CA specifically offers robust protection for electronic circuits against voltage surges.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage transients induced by lightning, inductive load switching, and electrostatic discharge
  • Characteristics: Fast response time, low clamping voltage, high surge capability
  • Package: SMC (DO-214AB) package
  • Essence: Safeguarding electronic circuits from voltage surges
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 28V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMCJ28CA follows the standard pin configuration for SMC packages, with two leads for connection to the circuit board.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltages
  • Fast Response Time: Rapid reaction to voltage spikes
  • Low Clamping Voltage: Limits the voltage across the protected circuit

Advantages and Disadvantages

Advantages

  • Robust protection against voltage transients
  • Fast response time
  • Low clamping voltage

Disadvantages

  • Limited to specific voltage range (28V)

Working Principles

The SMCJ28CA operates based on the principle of avalanche breakdown, where it rapidly diverts excessive current away from the protected circuit when a voltage surge occurs. This prevents damage to the sensitive components.

Detailed Application Field Plans

The SMCJ28CA is widely used in various electronic systems, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

  • SMCJ5.0A: Breakdown Voltage: 5V
  • SMCJ12A: Breakdown Voltage: 12V
  • SMCJ40A: Breakdown Voltage: 40V
  • SMCJ100A: Breakdown Voltage: 100V

In conclusion, the SMCJ28CA transient voltage suppressor diode provides essential protection for electronic circuits against voltage transients, making it an integral component in various electronic systems.

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Énumérez 10 questions et réponses courantes liées à l'application de SMCJ28CA dans les solutions techniques

  1. What is the SMCJ28CA?

    • The SMCJ28CA is a type of transient voltage suppressor diode designed to protect electronic circuits from voltage spikes and surges.

  2. What is the maximum peak pulse current rating for SMCJ28CA?

    • The maximum peak pulse current rating for SMCJ28CA is typically 300A.

  3. What is the breakdown voltage of SMCJ28CA?

    • The breakdown voltage of SMCJ28CA is 28V.

  4. How does SMCJ28CA protect electronic circuits?

    • SMCJ28CA clamps the voltage during transient events, diverting excess current away from sensitive components and preventing damage.

  5. What are the typical applications for SMCJ28CA?

    • SMCJ28CA is commonly used in power supplies, telecommunications equipment, automotive electronics, and industrial control systems.

  6. What is the response time of SMCJ28CA?

    • The response time of SMCJ28CA is very fast, typically in the nanosecond range.

  7. Can SMCJ28CA be used for overvoltage protection in automotive applications?

    • Yes, SMCJ28CA is suitable for overvoltage protection in automotive applications due to its robustness and reliability.

  8. Does SMCJ28CA require any external components for proper operation?

    • SMCJ28CA can be used standalone but may benefit from additional circuitry such as fuses and capacitors for enhanced protection.

  9. What is the operating temperature range of SMCJ28CA?

    • The operating temperature range of SMCJ28CA is typically -55°C to 150°C, making it suitable for a wide range of environments.

  10. Is SMCJ28CA RoHS compliant?

    • Yes, SMCJ28CA is typically RoHS compliant, ensuring it meets environmental standards for hazardous substances.