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SMCJ78A-HR
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SMCJ78A-HR

Product Overview

The SMCJ78A-HR belongs to the category of transient voltage suppressor diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transients. The SMCJ78A-HR is characterized by its high reliability, fast response time, and ability to handle high surge currents. It is typically packaged in a compact, surface-mount package and is available in various quantities per package.

Specifications

  • Voltage Rating: 78V
  • Peak Pulse Power: 1500W
  • Package Type: SMC (DO-214AB)
  • Quantity per Package: Varies

Detailed Pin Configuration

The SMCJ78A-HR typically has two pins, with the cathode connected to the marked side of the package and the anode connected to the unmarked side.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • High Surge Current Capability: Able to handle large surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Reliable protection against voltage transients
  • Fast response time
  • Compact surface-mount package

Disadvantages

  • Limited to specific voltage ratings
  • May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SMCJ78A-HR operates by diverting excess voltage away from sensitive components when a transient event occurs. This is achieved through the rapid conduction of the diode, which effectively limits the voltage across the protected circuit.

Detailed Application Field Plans

The SMCJ78A-HR is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMCJ5.0A-HR: 5V rating, suitable for low-voltage applications
  • SMCJ24A-HR: 24V rating, ideal for medium-power circuits
  • SMCJ130A-HR: 130V rating, for high-voltage protection requirements

In conclusion, the SMCJ78A-HR transient voltage suppressor diode offers reliable protection against voltage transients in a compact and efficient package. Its fast response time and high surge current capability make it a valuable component in various electronic systems.

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技術ソリューションにおける SMCJ78A-HR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure, here are 10 common questions and answers related to the application of SMCJ78A-HR in technical solutions:

  1. What is the maximum peak pulse current for SMCJ78A-HR?

    • The maximum peak pulse current for SMCJ78A-HR is 3000A.

  2. What is the breakdown voltage of SMCJ78A-HR?

    • The breakdown voltage of SMCJ78A-HR is 78V.

  3. Can SMCJ78A-HR be used for overvoltage protection in power supplies?

    • Yes, SMCJ78A-HR can be used for overvoltage protection in power supplies due to its high breakdown voltage and peak pulse current capabilities.

  4. Is SMCJ78A-HR suitable for surge protection in communication equipment?

    • Absolutely, SMCJ78A-HR is well-suited for surge protection in communication equipment, providing reliable protection against transient voltage spikes.

  5. What is the response time of SMCJ78A-HR during a transient event?

    • The response time of SMCJ78A-HR is very fast, typically responding to transient events in nanoseconds.

  6. Can SMCJ78A-HR be used in automotive electronics for ESD protection?

    • Yes, SMCJ78A-HR can be effectively used in automotive electronics for ESD protection, safeguarding sensitive components from electrostatic discharge.

  7. What is the operating temperature range of SMCJ78A-HR?

    • The operating temperature range of SMCJ78A-HR is -55°C to +150°C, making it suitable for a wide range of environments.

  8. Does SMCJ78A-HR require any external components for proper operation?

    • SMCJ78A-HR does not require any external components for basic operation, but additional circuitry may be needed for specific applications.

  9. Can SMCJ78A-HR be used in high-reliability industrial systems?

    • Yes, SMCJ78A-HR is designed for high-reliability applications and can be used in industrial systems where robust transient protection is required.

  10. What are the typical package dimensions of SMCJ78A-HR?

    • The typical package dimensions of SMCJ78A-HR are 5.3mm x 6.86mm, with a height of 2.8mm, making it suitable for compact designs.

I hope these questions and answers are helpful for your technical solutions involving SMCJ78A-HR! If you have any more questions, feel free to ask.