Vishay Semiconductor Diodes Division
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SMBJ120HE3/52
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SMBJ120HE3/52

Product Category

The SMBJ120HE3/52 belongs to the category of surface mount transient voltage suppressor diodes.

Basic Information Overview

  • Use: The SMBJ120HE3/52 is used for transient voltage suppression in electronic circuits to protect sensitive components from voltage spikes.
  • Characteristics: It has a low profile, high surge capability, and fast response time.
  • Package: The SMBJ120HE3/52 comes in a DO-214AA (SMB) package.
  • Essence: Its essence lies in providing robust protection against transient overvoltage conditions.
  • Packaging/Quantity: It is typically available in reels with quantities varying based on manufacturer specifications.

Specifications

  • Voltage Rating: 120V
  • Power Dissipation: 600W
  • Breakdown Voltage: 133V
  • Clamping Voltage: 193V
  • Peak Pulse Current: 10A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ120HE3/52 typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Transient Voltage Suppression: Provides protection by diverting excessive current away from sensitive components during voltage spikes.
  • Fast Response Time: Reacts quickly to transient events, minimizing the risk of damage to downstream components.

Advantages and Disadvantages

  • Advantages:
    • Robust protection against voltage transients
    • Fast response time
    • Low profile design
  • Disadvantages:
    • Limited to specific voltage ratings
    • May require additional circuitry for comprehensive protection in complex systems

Working Principles

The SMBJ120HE3/52 works by shunting excess current away from sensitive components when a transient voltage event occurs. This is achieved through the rapid conduction of the diode when the voltage exceeds its breakdown voltage, effectively clamping the voltage to a safe level.

Detailed Application Field Plans

The SMBJ120HE3/52 is commonly used in various applications including: - Power supplies - Communication systems - Automotive electronics - Industrial equipment - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMBJ120HE3/52 include: - SMAJ120A - SMCJ120CA - P6SMB120A

This diverse range of alternatives provides options with varying characteristics and form factors to suit different application requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SMBJ120HE3/52 i tekniska lösningar

  1. What is the SMBJ120HE3/52?

    • The SMBJ120HE3/52 is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum peak pulse power of the SMBJ120HE3/52?

    • The maximum peak pulse power of the SMBJ120HE3/52 is 600 watts.

  3. What is the breakdown voltage of the SMBJ120HE3/52?

    • The breakdown voltage of the SMBJ120HE3/52 is 120 volts.

  4. What are the typical applications for the SMBJ120HE3/52?

    • Typical applications for the SMBJ120HE3/52 include protection of electronic equipment such as computers, telecommunication equipment, and consumer electronics from voltage surges and transients.

  5. What is the operating temperature range of the SMBJ120HE3/52?

    • The operating temperature range of the SMBJ120HE3/52 is -55°C to +150°C.

  6. What is the forward voltage drop of the SMBJ120HE3/52?

    • The forward voltage drop of the SMBJ120HE3/52 is typically 3.5 volts at 10A.

  7. What is the package type of the SMBJ120HE3/52?

    • The SMBJ120HE3/52 comes in a DO-214AA (SMB) package.

  8. Is the SMBJ120HE3/52 RoHS compliant?

    • Yes, the SMBJ120HE3/52 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  9. What are the key features of the SMBJ120HE3/52?

    • The key features of the SMBJ120HE3/52 include low clamping voltage, fast response time, and high surge current capability.

  10. How should the SMBJ120HE3/52 be mounted on a PCB?

    • The SMBJ120HE3/52 should be mounted with the cathode side marked on the body facing the PCB and soldered using appropriate reflow or wave soldering methods.