Vishay Semiconductor Diodes Division
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SMBJ78C-E3/52
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SMBJ78C-E3/52

Product Overview

The SMBJ78C-E3/52 belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are widely used for protecting sensitive electronics from voltage spikes and transients. The SMBJ78C-E3/52 is characterized by its high surge capability, low clamping voltage, and fast response time. It is typically available in a surface mount package and is designed to be used across various applications where protection against voltage surges is essential.

Basic Information

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage spikes and transients
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: Surface mount
  • Essence: Protecting sensitive electronics from voltage surges
  • Packaging/Quantity: Typically available in reels or tubes with varying quantities

Specifications

  • Part Number: SMBJ78C-E3/52
  • Peak Pulse Power: 600W
  • Breakdown Voltage: 78V
  • Operating Voltage: 64.1V
  • Clamping Voltage: 103V
  • Peak Pulse Current: 10A
  • Polarity: Unidirectional

Detailed Pin Configuration

The SMBJ78C-E3/52 typically features a standard SMC (DO-214AB) package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

  • Transient Voltage Suppression: Effectively suppresses voltage transients to protect downstream components.
  • Fast Response Time: Rapidly responds to voltage spikes to minimize potential damage.
  • High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

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

Disadvantages

  • Unidirectional protection only
  • Limited peak pulse power compared to some alternative models

Working Principles

The SMBJ78C-E3/52 operates based on the principle of avalanche breakdown. When a voltage surge occurs, the diode rapidly conducts, diverting the excess current away from the protected circuit. This action effectively clamps the voltage to a safe level, protecting the connected electronics.

Detailed Application Field Plans

The SMBJ78C-E3/52 finds extensive use in various applications, including: - Telecommunications equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

Some alternative TVS diode models that can be considered as alternatives to the SMBJ78C-E3/52 include: - P6KE68CA - 1.5KE82A - SMAJ75A

In conclusion, the SMBJ78C-E3/52 transient voltage suppressor diode offers effective protection against voltage surges and transients in a compact surface mount package. Its fast response time and high surge capability make it suitable for a wide range of applications, although designers should consider the unidirectional nature and peak pulse power limitations when selecting this diode for specific use cases.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMBJ78C-E3/52 v technických řešeních

  1. What is the SMBJ78C-E3/52?

    • The SMBJ78C-E3/52 is a 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 SMBJ78C-E3/52?

    • The maximum peak pulse power of the SMBJ78C-E3/52 is 600 watts.

  3. What is the breakdown voltage of the SMBJ78C-E3/52?

    • The breakdown voltage of the SMBJ78C-E3/52 is 78 volts.

  4. What are the typical applications of the SMBJ78C-E3/52?

    • The SMBJ78C-E3/52 is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems for transient voltage protection.

  5. What is the operating temperature range of the SMBJ78C-E3/52?

    • The SMBJ78C-E3/52 has an operating temperature range of -55°C to 150°C.

  6. What is the response time of the SMBJ78C-E3/52?

    • The response time of the SMBJ78C-E3/52 is very fast, typically responding within nanoseconds to clamp transient voltages.

  7. Is the SMBJ78C-E3/52 RoHS compliant?

    • Yes, the SMBJ78C-E3/52 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. Can the SMBJ78C-E3/52 be used for ESD protection?

    • Yes, the SMBJ78C-E3/52 can be used for electrostatic discharge (ESD) protection in various electronic circuits and systems.

  9. What is the packaging type of the SMBJ78C-E3/52?

    • The SMBJ78C-E3/52 is available in a surface mount package.

  10. Does the SMBJ78C-E3/52 require any external components for proper operation?

    • No, the SMBJ78C-E3/52 does not require any external components for its basic operation as a transient voltage suppressor diode. However, additional circuitry may be needed depending on the specific application requirements.