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.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMBJ78C-E3/52 in technische oplossingen

  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.