Littelfuse Inc.
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SMBJ54A-HR
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SMBJ54A-HR

Product Overview

Category

The SMBJ54A-HR belongs to the category of transient voltage suppressor diodes.

Use

It is used to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

Characteristics

  • Fast response time
  • Low clamping voltage
  • High surge current capability
  • RoHS compliant

Package

The SMBJ54A-HR is available in a surface mount DO-214AA (SMB) package.

Essence

The essence of the SMBJ54A-HR lies in its ability to provide reliable overvoltage protection for electronic circuits.

Packaging/Quantity

It is typically packaged in reels or tubes and is available in quantities suitable for both prototyping and production.

Specifications

  • Peak Pulse Power: 600W
  • Breakdown Voltage: 54V
  • Operating Temperature Range: -55°C to +150°C
  • Reverse Standoff Voltage: 48.5V
  • Maximum Clamping Voltage: 87.1V

Detailed Pin Configuration

The SMBJ54A-HR has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Transient voltage suppression
  • Bidirectional clamping capability
  • Low incremental surge resistance

Advantages

  • Fast response to transient overvoltage events
  • Low clamping voltage protects downstream components
  • Compact surface mount package

Disadvantages

  • Limited power dissipation capability
  • May require additional heat sinking for high-power applications

Working Principles

The SMBJ54A-HR works by diverting excess voltage away from sensitive components, thereby limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMBJ54A-HR is commonly used in: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMBJ54A-HR include: - P6SMBJ54A - SMCJ54A - 1.5SMCJ54A

In conclusion, the SMBJ54A-HR is a vital component in protecting electronic circuits from voltage transients, offering fast response times and low clamping voltages. Its compact size and bidirectional clamping capability make it suitable for a wide range of applications in various industries.

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기술 솔루션에 SMBJ54A-HR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the SMBJ54A-HR?

    • The SMBJ54A-HR is a high-reliability, surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of the SMBJ54A-HR?

    • The maximum peak pulse power of the SMBJ54A-HR is 600 watts for an 8/20µs waveform.

  3. What is the breakdown voltage of the SMBJ54A-HR?

    • The breakdown voltage of the SMBJ54A-HR is 58.9V.

  4. What are the typical applications of the SMBJ54A-HR?

    • The SMBJ54A-HR is commonly used in telecommunications equipment, consumer electronics, industrial automation, and automotive systems to protect against voltage surges and transients.

  5. What is the operating temperature range of the SMBJ54A-HR?

    • The SMBJ54A-HR has an operating temperature range of -55°C to +150°C.

  6. What is the response time of the SMBJ54A-HR?

    • The response time of the SMBJ54A-HR is very fast, typically less than 1 picosecond.

  7. Does the SMBJ54A-HR meet any specific industry standards?

    • Yes, the SMBJ54A-HR meets the requirements of the IEC 61000-4-5 standard for surge protection devices.

  8. Can the SMBJ54A-HR be used in outdoor applications?

    • Yes, the SMBJ54A-HR is suitable for outdoor applications due to its high reliability and robust construction.

  9. What is the packaging of the SMBJ54A-HR?

    • The SMBJ54A-HR is available in a DO-214AA (SMB) package.

  10. Is the SMBJ54A-HR RoHS compliant?

    • Yes, the SMBJ54A-HR is compliant with the Restriction of Hazardous Substances (RoHS) directive.