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SMDJ43A
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SMDJ43A - Product Overview

Introduction

The SMDJ43A is a diode belonging to the category of transient voltage suppressors (TVS). This device is designed to protect sensitive electronics from voltage transients induced by lightning and other transient voltage events. The SMDJ43A offers characteristics such as high surge capability, low clamping voltage, and fast response time, making it suitable for a wide range of applications.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage transients induced by lightning and other transient voltage events
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: Surface Mount
  • Essence: Protecting sensitive electronics from voltage transients
  • Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

  • Part Number: SMDJ43A
  • Peak Pulse Power: 3000W
  • Breakdown Voltage: 43V
  • Operating Temperature Range: -55°C to +150°C
  • Package Type: DO-214AB (SMC)

Detailed Pin Configuration

The SMDJ43A typically follows the standard pin configuration for diodes in the DO-214AB package. It consists of two pins, with the anode connected to one pin and the cathode connected to the other.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level
  • Fast Response Time: Rapid reaction to transient voltage events
  • High Surge Capability: Able to withstand high surge currents without degradation

Advantages and Disadvantages

Advantages

  • Effective protection against transient voltage events
  • Fast response time ensures minimal impact on protected circuits
  • High surge capability provides robust protection

Disadvantages

  • Clamping voltage may still allow some transient energy through, depending on the application

Working Principles

The SMDJ43A operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit and limiting the voltage to a safe level.

Detailed Application Field Plans

The SMDJ43A finds application in various fields, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Industrial Electronics: Safeguarding control systems and sensors from voltage transients - Automotive Electronics: Shielding vehicle electronics from electrical disturbances

Detailed and Complete Alternative Models

  • SMDJ5.0A: Lower breakdown voltage variant for lower voltage applications
  • SMDJ78A: Higher breakdown voltage variant for higher voltage applications
  • P6SMB33CA: Alternative TVS diode with similar characteristics

In conclusion, the SMDJ43A transient voltage suppressor diode offers effective protection against transient voltage events, making it a crucial component in safeguarding sensitive electronics across various industries.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SMDJ43A i tekniska lösningar

  1. What is the maximum forward voltage of SMDJ43A?

    • The maximum forward voltage of SMDJ43A is 58.1V at 10A.

  2. What is the peak pulse power dissipation of SMDJ43A?

    • The peak pulse power dissipation of SMDJ43A is 3000W for a 10/1000μs waveform.

  3. What is the breakdown voltage of SMDJ43A?

    • The breakdown voltage of SMDJ43A is typically 43V.

  4. What is the operating temperature range of SMDJ43A?

    • The operating temperature range of SMDJ43A is -55°C to +150°C.

  5. What is the reverse stand-off voltage of SMDJ43A?

    • The reverse stand-off voltage of SMDJ43A is 43V.

  6. What is the clamping voltage of SMDJ43A?

    • The clamping voltage of SMDJ43A is 77.4V at 10A.

  7. What is the package type of SMDJ43A?

    • SMDJ43A is available in a DO-214AB (SMC) package.

  8. What are the typical applications of SMDJ43A?

    • SMDJ43A is commonly used in surge protection for sensitive electronics, such as telecommunications equipment, industrial control systems, and power supplies.

  9. What is the reverse leakage current of SMDJ43A at its maximum working voltage?

    • The reverse leakage current of SMDJ43A at its maximum working voltage is typically less than 1μA.

  10. Is SMDJ43A RoHS compliant?

    • Yes, SMDJ43A is RoHS compliant, making it suitable for use in environmentally friendly electronic products.