Vishay Semiconductor Diodes Division
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SMBJ12AHE3/52
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SMBJ12AHE3/52

Product Overview

The SMBJ12AHE3/52 belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are widely used for protecting sensitive electronics from voltage spikes and transient surges. The SMBJ12AHE3/52 is characterized by its high surge capability, low clamping voltage, and fast response time. It is typically available in a compact package, making it suitable for various electronic applications.

Basic Information

  • Category: Transient Voltage Suppressor Diode (TVS Diode)
  • Use: Protection against voltage spikes and transient surges
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: SMB (DO-214AA) package
  • Essence: Provides robust protection for sensitive electronic components
  • Packaging/Quantity: Available in tape and reel packaging with varying quantities

Specifications

  • Voltage - Reverse Standoff (Typ): 12V
  • Voltage - Breakdown (Min): 13.3V
  • Voltage - Clamping (Max) @ Ipp: 19.9V
  • Current - Peak Pulse (10/1000µs): 30.6A
  • Power - Peak Pulse: 600W
  • Type: Zener

Detailed Pin Configuration

The SMBJ12AHE3/52 TVS diode typically consists of two pins: anode and cathode. The pin configuration is as follows: - Anode (A) - Pin 1 - Cathode (K) - Pin 2

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Robust protection against voltage transients
  • Compact form factor
  • Fast response time

Disadvantages

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

Working Principles

The SMBJ12AHE3/52 operates based on the principle of avalanche breakdown. When a voltage spike occurs, the diode rapidly conducts, diverting excess current away from the sensitive components. This action effectively limits the voltage across the protected circuitry, preventing damage due to transient surges.

Detailed Application Field Plans

The SMBJ12AHE3/52 is commonly employed in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Consumer Electronics: Safeguarding sensitive electronic devices from power line disturbances. - Automotive Electronics: Shielding automotive control systems from voltage transients.

Detailed and Complete Alternative Models

Some alternative models to the SMBJ12AHE3/52 TVS diode include: - P6KE12CA: Similar specifications with a different package type - 1.5KE12A: Higher power dissipation capability - SMAJ12A: Smaller form factor for space-constrained applications

In conclusion, the SMBJ12AHE3/52 TVS diode offers robust transient voltage suppression capabilities, making it an essential component in safeguarding sensitive electronics from damaging voltage spikes and surges.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SMBJ12AHE3/52 i tekniska lösningar

  1. What is the SMBJ12AHE3/52?

    • The SMBJ12AHE3/52 is a surface mount 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 SMBJ12AHE3/52?

    • The maximum peak pulse power of the SMBJ12AHE3/52 is 600 watts.

  3. What is the breakdown voltage of the SMBJ12AHE3/52?

    • The breakdown voltage of the SMBJ12AHE3/52 is 12 volts.

  4. What are the typical applications of the SMBJ12AHE3/52?

    • The SMBJ12AHE3/52 is commonly used in applications such as telecommunications equipment, industrial automation, and power supplies to protect against voltage transients.

  5. What is the operating temperature range of the SMBJ12AHE3/52?

    • The SMBJ12AHE3/52 has an operating temperature range of -55°C to 150°C.

  6. What is the response time of the SMBJ12AHE3/52?

    • The response time of the SMBJ12AHE3/52 is very fast, typically responding within nanoseconds to clamp voltage transients.

  7. Is the SMBJ12AHE3/52 RoHS compliant?

    • Yes, the SMBJ12AHE3/52 is RoHS compliant, making it suitable for use in environmentally sensitive applications.

  8. What is the package type of the SMBJ12AHE3/52?

    • The SMBJ12AHE3/52 comes in a DO-214AA (SMB) package.

  9. What is the clamping voltage of the SMBJ12AHE3/52?

    • The clamping voltage of the SMBJ12AHE3/52 is 19.9 volts at 10A.

  10. Can the SMBJ12AHE3/52 be used for ESD protection?

    • Yes, the SMBJ12AHE3/52 can be used for electrostatic discharge (ESD) protection in various electronic circuits and systems.