Vishay Semiconductor Diodes Division
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SMCJ40HE3/57T
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SMCJ40HE3/57T - Product Overview and Analysis

Introduction

The SMCJ40HE3/57T is a high-performance TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides a comprehensive overview of the SMCJ40HE3/57T, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category and Basic Information Overview

  • Category: TVS Diode
  • Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: SMC (DO-214AB)
  • Essence: Transient voltage suppression
  • Packaging/Quantity: Tape & Reel, 1800 units per reel

Specifications

  • Part Number: SMCJ40HE3/57T
  • Standoff Voltage: 40V
  • Breakdown Voltage: 44.4V
  • Peak Pulse Power: 1500W
  • Operating Temperature Range: -55°C to +150°C
  • RoHS Compliant: Yes

Detailed Pin Configuration

The SMCJ40HE3/57T TVS diode has a standard SMC package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Provides robust protection against transient voltage events.
  • Fast Response Time: Rapidly clamps transient voltages to safe levels, protecting downstream components.
  • High Surge Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • RoHS compliant

Disadvantages

  • Limited to a specific voltage range (40V)

Working Principles

The SMCJ40HE3/57T operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting excess current away from the protected circuitry and limiting the voltage across it.

Detailed Application Field Plans

The SMCJ40HE3/57T is widely used in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies - LED lighting

Detailed and Complete Alternative Models

For applications requiring different voltage ratings or form factors, alternative TVS diode models include: - SMCJ5.0A - Standoff Voltage: 5V - SMCJ15CA - Standoff Voltage: 15V - SMCJ100A - Standoff Voltage: 100V - SMAJ40A - Standoff Voltage: 40V, SMA package

In conclusion, the SMCJ40HE3/57T TVS diode offers robust transient voltage suppression capabilities, making it an essential component for protecting sensitive electronic equipment in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMCJ40HE3/57T v technických řešeních

  1. What is the SMCJ40HE3/57T?

    • The SMCJ40HE3/57T is a surface mount transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum peak pulse power of the SMCJ40HE3/57T?

    • The maximum peak pulse power of the SMCJ40HE3/57T is 1500 watts.

  3. What is the breakdown voltage of the SMCJ40HE3/57T?

    • The breakdown voltage of the SMCJ40HE3/57T is 40 volts.

  4. What are the typical applications of the SMCJ40HE3/57T?

    • The SMCJ40HE3/57T is commonly used in surge protection for telecommunications equipment, industrial control systems, and automotive electronics.

  5. What is the operating temperature range of the SMCJ40HE3/57T?

    • The SMCJ40HE3/57T has an operating temperature range of -55°C to +150°C.

  6. What is the response time of the SMCJ40HE3/57T?

    • The response time of the SMCJ40HE3/57T is very fast, typically responding within nanoseconds to clamp transient voltages.

  7. Does the SMCJ40HE3/57T require a heat sink for operation?

    • In most applications, the SMCJ40HE3/57T does not require a heat sink due to its high power dissipation capability.

  8. What are the packaging options available for the SMCJ40HE3/57T?

    • The SMCJ40HE3/57T is available in a variety of surface mount packages, including DO-214AB (SMC) and DO-214AA (SMB).

  9. Can the SMCJ40HE3/57T be used for overvoltage protection in power supply circuits?

    • Yes, the SMCJ40HE3/57T is suitable for overvoltage protection in power supply circuits, providing reliable protection for sensitive components.

  10. Is the SMCJ40HE3/57T compliant with industry standards for surge protection devices?

    • Yes, the SMCJ40HE3/57T complies with industry standards such as IEC 61000-4-5 for surge protection devices, ensuring its reliability and performance in technical solutions.