Littelfuse Inc.
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SMBJ40A-HR
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SMBJ40A-HR

Product Overview

Category: Electronic Component
Use: Voltage Suppression
Characteristics: High reliability, fast response time
Package: DO-214AB
Essence: Transient Voltage Suppressor (TVS) diode
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Voltage - Reverse Standoff (Typ): 40V
  • Voltage - Breakdown (Min): 44.4V
  • Clamping Voltage @ Ipp: 64.5V
  • Current - Peak Pulse (10/1000µs): 10A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMBJ40A-HR has two pins, with the cathode connected to the ground and the anode connected to the input voltage.

Functional Features

  • Fast response time
  • High reliability
  • Low clamping voltage

Advantages and Disadvantages

Advantages: 1. Provides effective protection against transient voltage spikes 2. Fast reaction time ensures minimal damage to sensitive components 3. High reliability ensures long-term protection

Disadvantages: 1. May require additional circuitry for comprehensive surge protection 2. Limited to specific voltage and current ratings

Working Principles

The SMBJ40A-HR operates by diverting excess voltage away from sensitive components when a transient voltage spike occurs. It rapidly clamps the voltage to a safe level, protecting downstream electronics.

Detailed Application Field Plans

The SMBJ40A-HR is commonly used in various electronic devices and systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  1. SMBJ33A-HR: Similar characteristics, lower voltage rating
  2. SMBJ48A-HR: Similar characteristics, higher voltage rating
  3. SMBJ40CA-HR: Similar characteristics, bidirectional protection

In conclusion, the SMBJ40A-HR is a reliable and efficient TVS diode that provides essential protection against transient voltage spikes in a wide range of electronic applications.

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기술 솔루션에 SMBJ40A-HR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the SMBJ40A-HR?

    • The SMBJ40A-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 SMBJ40A-HR?

    • The maximum peak pulse power of the SMBJ40A-HR is 600 watts for an 8/20µs waveform.

  3. What is the breakdown voltage of the SMBJ40A-HR?

    • The breakdown voltage of the SMBJ40A-HR is 44.4V.

  4. What are the typical applications of the SMBJ40A-HR?

    • The SMBJ40A-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 SMBJ40A-HR?

    • The SMBJ40A-HR has an operating temperature range of -55°C to +150°C.

  6. What is the response time of the SMBJ40A-HR?

    • The response time of the SMBJ40A-HR is very fast, typically less than 1 picosecond.

  7. Does the SMBJ40A-HR meet any specific industry standards?

    • Yes, the SMBJ40A-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 SMBJ40A-HR be used in outdoor applications?

    • Yes, the SMBJ40A-HR is suitable for outdoor applications due to its high reliability and robust construction.

  9. What is the packaging of the SMBJ40A-HR?

    • The SMBJ40A-HR is available in a compact, surface-mount package for easy integration into circuit designs.

  10. Is there any recommended layout or PCB design consideration for using the SMBJ40A-HR?

    • Yes, it is recommended to follow the layout guidelines provided in the datasheet to ensure optimal performance and protection when using the SMBJ40A-HR in a circuit design.