Littelfuse Inc.
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SMDJ43C
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SMDJ43C - Diode TVS

Basic Information Overview

  • Category: Diode Transient Voltage Suppressor (TVS)
  • Use: Protection against transient voltage spikes in electronic circuits
  • Characteristics: Low clamping voltage, fast response time, high surge current capability
  • Package: SMD (Surface Mount Device)
  • Essence: Safeguarding sensitive electronic components from voltage surges
  • Packaging/Quantity: Typically available in reels of 3000 units

Specifications

  • Peak Pulse Power: 3000W
  • Breakdown Voltage Range: 43.2V to 47.8V
  • Operating Temperature Range: -55°C to +150°C
  • Mounting Type: Surface Mount
  • Polarity: Unidirectional

Detailed Pin Configuration

The SMDJ43C typically has a standard SMD package with two terminals for surface mounting onto circuit boards.

Functional Features

  • Provides effective protection against voltage transients and surges
  • Fast response time ensures minimal impact on the protected circuit
  • High surge current capability allows for reliable performance under extreme conditions

Advantages and Disadvantages

Advantages

  • Low clamping voltage provides effective protection for sensitive components
  • Fast response time minimizes the risk of damage to the protected circuit
  • High surge current capability ensures robust performance in demanding environments

Disadvantages

  • Unidirectional nature limits its application in bidirectional protection scenarios
  • May require additional circuitry for comprehensive transient voltage protection in complex systems

Working Principles

The SMDJ43C operates by diverting excessive transient currents away from sensitive components when voltage spikes occur. Upon reaching the breakdown voltage, the diode enters a low impedance state, effectively shunting the excess energy to protect the downstream circuitry.

Detailed Application Field Plans

The SMDJ43C is widely used in various electronic systems, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • SMDJ5.0A: Lower breakdown voltage for applications requiring less protection
  • SMDJ78CA: Higher breakdown voltage for applications operating at higher voltages
  • SMDJ120A: Increased peak pulse power for enhanced surge protection capabilities

In conclusion, the SMDJ43C diode TVS offers reliable protection against transient voltage spikes in electronic circuits, making it an essential component in safeguarding sensitive electronic devices across various industries.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMDJ43C en soluciones técnicas

Sure, here are 10 common questions and answers related to the application of SMDJ43C in technical solutions:

  1. What is SMDJ43C?

    • SMDJ43C is a type of TVS (transient voltage suppressor) diode designed to protect electronic circuits from voltage spikes and transients.

  2. What is the maximum peak pulse power of SMDJ43C?

    • The maximum peak pulse power of SMDJ43C is typically 3000 watts.

  3. What is the breakdown voltage of SMDJ43C?

    • The breakdown voltage of SMDJ43C is around 43 volts.

  4. What are the typical applications of SMDJ43C?

    • SMDJ43C is commonly used in surge protection for sensitive electronic equipment, such as telecommunications systems, industrial control systems, and power supplies.

  5. What is the response time of SMDJ43C?

    • The response time of SMDJ43C is very fast, typically in the nanosecond range, providing quick protection against voltage transients.

  6. Can SMDJ43C be used for overvoltage protection in automotive electronics?

    • Yes, SMDJ43C can be used for overvoltage protection in automotive electronics, such as in vehicle control units and infotainment systems.

  7. What is the operating temperature range of SMDJ43C?

    • The operating temperature range of SMDJ43C is typically between -55°C to 150°C, making it suitable for a wide range of environments.

  8. How does SMDJ43C compare to other TVS diodes in terms of performance?

    • SMDJ43C offers high surge capability and low clamping voltage, making it an effective choice for protecting sensitive electronic components.

  9. Can SMDJ43C be used in high-speed data line protection applications?

    • Yes, SMDJ43C can be used in high-speed data line protection to safeguard against voltage surges and ESD (electrostatic discharge) events.

  10. Are there any specific layout or mounting considerations for using SMDJ43C in circuit designs?

    • It's important to follow recommended PCB layout guidelines and ensure proper thermal management when integrating SMDJ43C into circuit designs to maximize its effectiveness.

I hope these questions and answers provide helpful insights into the application of SMDJ43C in technical solutions. Let me know if you need further information!