Littelfuse Inc.
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SMBJ12A-HR
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SMBJ12A-HR

Product Overview

Category: Electronic Component
Use: Voltage Suppression
Characteristics: Transient Voltage Suppressor
Package: DO-214AA
Essence: Protects sensitive electronic devices from voltage transients
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Voltage - Reverse Standoff (Typ): 12V
  • Voltage - Breakdown (Min): 13.3V
  • Voltage - Clamping (Max) @ Ipp: 19.9V
  • Current - Peak Pulse (10/1000µs): 23.1A
  • Power - Peak Pulse: 300W
  • Type: Zener
  • Unidirectional: Yes

Detailed Pin Configuration

The SMBJ12A-HR has a standard DO-214AA package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time
  • Low clamping voltage
  • High surge capability

Advantages and Disadvantages

Advantages: - Effective voltage suppression - Fast reaction to transient events - Compact size

Disadvantages: - Limited peak pulse current handling capacity - Unidirectional protection only

Working Principles

The SMBJ12A-HR operates based on the principle of zener breakdown. When a transient voltage event occurs, the device rapidly clamps the voltage to a safe level, protecting downstream electronics.

Detailed Application Field Plans

The SMBJ12A-HR is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to SMBJ12A-HR include: - P6SMB12A - SMCJ12A - 1.5SMCJ12A - SMAJ12A

In conclusion, the SMBJ12A-HR is a reliable voltage suppression component suitable for a wide range of applications, offering effective protection against transient voltage events while having some limitations in peak pulse current handling. Its compact size and fast response make it a popular choice in various electronic systems.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMBJ12A-HR v technických řešeních

  1. What is the SMBJ12A-HR?

    • The SMBJ12A-HR is a high-reliability, surface mount transient voltage suppressor diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of the SMBJ12A-HR?

    • The maximum peak pulse power of the SMBJ12A-HR is 600 watts for an 8/20µs waveform.

  3. What is the breakdown voltage of the SMBJ12A-HR?

    • The breakdown voltage of the SMBJ12A-HR is 12 volts.

  4. What are the typical applications of the SMBJ12A-HR?

    • Typical applications of the SMBJ12A-HR include protection of telecommunications equipment, portable electronics, automotive systems, and industrial control systems.

  5. What is the operating temperature range of the SMBJ12A-HR?

    • The SMBJ12A-HR has an operating temperature range of -55°C to +150°C.

  6. What is the response time of the SMBJ12A-HR?

    • The response time of the SMBJ12A-HR is less than 1 picosecond.

  7. Does the SMBJ12A-HR meet any specific industry standards?

    • Yes, the SMBJ12A-HR meets the requirements of various industry standards such as IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge).

  8. Can the SMBJ12A-HR be used in high-reliability applications?

    • Yes, the SMBJ12A-HR is specifically designed for high-reliability applications and is suitable for use in harsh environments.

  9. What is the package type of the SMBJ12A-HR?

    • The SMBJ12A-HR is available in a DO-214AA (SMB) package.

  10. Is the SMBJ12A-HR RoHS compliant?

    • Yes, the SMBJ12A-HR is compliant with the Restriction of Hazardous Substances (RoHS) directive.