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SMBJ43A
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SMBJ43A - Product Overview

Introduction

The SMBJ43A is a part of the SMBJ series of surface mount transient voltage suppressor diodes. These diodes are designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage transients
  • Characteristics: Fast response time, low clamping voltage
  • Package: DO-214AA (SMB), 2-Pin SMD package
  • Essence: Provides overvoltage protection for electronic circuits
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Peak Pulse Power: 600W
  • Breakdown Voltage Range: 37.1V to 48.9V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ43A has a simple 2-pin configuration with no polarity. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

  • Transient Voltage Suppression: The SMBJ43A provides effective suppression of transient voltages, diverting excess current away from sensitive components.
  • Fast Response Time: The diode responds quickly to transient events, minimizing the risk of damage to connected devices.

Advantages and Disadvantages

Advantages

  • Fast response time
  • Low clamping voltage
  • Compact SMD package

Disadvantages

  • Limited power dissipation capability
  • May require additional circuitry for comprehensive surge protection

Working Principles

The SMBJ43A operates based on the principle of avalanche breakdown. When a transient voltage surge occurs, the diode rapidly conducts excess current, limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMBJ43A is commonly used in various electronic systems, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • SMBJ5.0A: Lower breakdown voltage
  • SMBJ78A: Higher breakdown voltage
  • SMBJ110A: Higher peak pulse power handling

In conclusion, the SMBJ43A transient voltage suppressor diode offers reliable protection against transient voltage events, making it an essential component in safeguarding sensitive electronic circuits.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMBJ43A en soluciones técnicas

  1. What is the SMBJ43A?

    • The SMBJ43A is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum working voltage of the SMBJ43A?

    • The SMBJ43A has a maximum working voltage of 43 volts.

  3. What is the peak pulse power dissipation of the SMBJ43A?

    • The peak pulse power dissipation of the SMBJ43A is typically 600 watts.

  4. What are the typical applications of the SMBJ43A?

    • The SMBJ43A is commonly used in applications such as power supplies, telecommunications equipment, and automotive electronics for transient voltage protection.

  5. What is the clamping voltage of the SMBJ43A?

    • The clamping voltage of the SMBJ43A is the voltage at which it begins to conduct significant current during a transient event, and for SMBJ43A, it is typically around 69.4 volts.

  6. What is the operating temperature range of the SMBJ43A?

    • The SMBJ43A is designed to operate within a temperature range of -55°C to 150°C.

  7. How does the SMBJ43A provide protection against voltage spikes?

    • The SMBJ43A shunts excess current away from sensitive components by diverting it through itself when a voltage spike occurs, thus protecting the downstream circuitry.

  8. Can the SMBJ43A be used in high-speed data line protection?

    • Yes, the SMBJ43A can be used in high-speed data line protection due to its fast response time and low capacitance.

  9. What is the packaging type of the SMBJ43A?

    • The SMBJ43A is available in various package types, including DO-214AA (SMB) and DO-214AC (SMA).

  10. Is the SMBJ43A RoHS compliant?

    • Yes, the SMBJ43A is RoHS compliant, making it suitable for use in environmentally conscious designs.