Littelfuse Inc.
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SMCJ78CA-HR
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SMCJ78CA-HR

Product Overview

The SMCJ78CA-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 SMCJ78CA-HR is characterized by its high reliability, fast response time, and ability to handle large transient currents. It is typically packaged in a compact, surface-mount package and is available in various quantities.

Specifications

  • Voltage Rating: 78V
  • Peak Pulse Power: 1500W
  • Package Type: SMC (DO-214AB)
  • Quantity: Available in reels or bulk packaging

Detailed Pin Configuration

The SMCJ78CA-HR follows the standard pin configuration for SMC diodes, with the anode connected to one terminal and the cathode connected to the other terminal.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
  • Fast Response Time: Rapid reaction to transient events ensures minimal impact on the protected circuitry.
  • High Reliability: Designed to provide long-term protection in demanding applications.

Advantages and Disadvantages

Advantages

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

Disadvantages

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

Working Principles

The SMCJ78CA-HR operates by shunting excess transient current away from sensitive components when a voltage spike occurs. This prevents the voltage from reaching damaging levels and protects the connected circuitry.

Detailed Application Field Plans

The SMCJ78CA-HR is commonly used in various applications including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

  • SMCJ5.0A-HR: 5.0V rating
  • SMCJ12A-HR: 12V rating
  • SMCJ24A-HR: 24V rating
  • SMCJ48A-HR: 48V rating

In conclusion, the SMCJ78CA-HR transient voltage suppressor diode offers reliable protection against voltage transients in a compact and efficient package, making it suitable for a wide range of electronic applications.

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기술 솔루션에 SMCJ78CA-HR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the maximum peak pulse power of SMCJ78CA-HR?

    • The maximum peak pulse power of SMCJ78CA-HR is 1500 watts.

  2. What is the breakdown voltage of SMCJ78CA-HR?

    • The breakdown voltage of SMCJ78CA-HR is typically 86.7 volts.

  3. What is the clamping voltage of SMCJ78CA-HR at a specified current level?

    • At a specified current level of 77.4A, the clamping voltage of SMCJ78CA-HR is approximately 124 volts.

  4. What is the operating temperature range for SMCJ78CA-HR?

    • SMCJ78CA-HR has an operating temperature range of -55°C to +150°C.

  5. What are the typical applications for SMCJ78CA-HR?

    • SMCJ78CA-HR is commonly used in surge protection for telecommunications equipment, industrial control systems, and automotive electronics.

  6. What is the response time of SMCJ78CA-HR in nanoseconds?

    • The response time of SMCJ78CA-HR is typically less than 1 nanosecond.

  7. Does SMCJ78CA-HR meet any specific industry standards or certifications?

    • Yes, SMCJ78CA-HR is compliant with RoHS and REACH directives.

  8. What is the package type of SMCJ78CA-HR?

    • SMCJ78CA-HR is available in a DO-214AB (SMC) package.

  9. Can SMCJ78CA-HR be used for overvoltage protection in power supply units?

    • Yes, SMCJ78CA-HR is suitable for overvoltage protection in power supply units and DC/DC converters.

  10. Is SMCJ78CA-HR suitable for high-reliability applications such as aerospace or medical devices?

    • Yes, SMCJ78CA-HR is designed for high-reliability applications and can be used in aerospace, medical devices, and other critical systems.