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SMBJ400A
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SMBJ400A - Product Overview

Introduction

The SMBJ400A belongs to the category of transient voltage suppressor (TVS) diodes, which are widely used in electronic circuits to protect sensitive components from voltage spikes and transients. This entry provides a comprehensive overview of the SMBJ400A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor (TVS) Diode
  • Use: Protection against voltage spikes and transients in electronic circuits
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: SMB (DO-214AA)
  • Essence: TVS diode for circuit protection
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Peak Pulse Power: 600W
  • Breakdown Voltage: 400V
  • Operating Voltage: 342V
  • Clamping Voltage: 658V
  • Peak Pulse Current: 10A
  • Reverse Standoff Voltage: 342V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ400A TVS diode typically has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Fast response to transient over-voltage conditions
  • Low clamping voltage to protect downstream components
  • High surge current capability for robust protection

Advantages and Disadvantages

Advantages

  • Effective protection against voltage spikes
  • Fast response time
  • Compact package size
  • Wide operating temperature range

Disadvantages

  • Limited peak pulse power compared to larger TVS diodes
  • Higher clamping voltage than some specialized TVS diodes

Working Principles

When a transient voltage spike occurs in the circuit, the SMBJ400A TVS diode rapidly conducts, diverting the excess energy away from sensitive components. This action effectively clamps the voltage to a safe level, protecting the circuit from damage.

Detailed Application Field Plans

The SMBJ400A is commonly used in various applications, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ440A (440V breakdown voltage)
  • Alternative Model 2: SMBJ380A (380V breakdown voltage)
  • Alternative Model 3: SMBJ420A (420V breakdown voltage)
  • Alternative Model 4: P6SMBJ400A (600W peak pulse power)

In conclusion, the SMBJ400A TVS diode offers effective protection against voltage spikes and transients in electronic circuits, making it an essential component in various applications across different industries.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SMBJ400A i tekniska lösningar

  1. What is the SMBJ400A used for?

    • The SMBJ400A is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum voltage rating of the SMBJ400A?

    • The SMBJ400A has a maximum voltage rating of 400V.

  3. What is the peak pulse power dissipation of the SMBJ400A?

    • The peak pulse power dissipation of the SMBJ400A is typically 600W.

  4. What are the typical applications of the SMBJ400A?

    • The SMBJ400A is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems.

  5. What is the response time of the SMBJ400A to voltage transients?

    • The response time of the SMBJ400A to voltage transients is very fast, typically in the nanosecond range.

  6. How does the SMBJ400A provide protection to electronic circuits?

    • The SMBJ400A clamps the voltage level to a safe threshold, diverting excess current away from the protected circuit.

  7. Is the SMBJ400A suitable for high-speed data lines?

    • Yes, the SMBJ400A is suitable for protecting high-speed data lines from voltage transients.

  8. What is the operating temperature range of the SMBJ400A?

    • The SMBJ400A typically operates within a temperature range of -55°C to 150°C.

  9. Can the SMBJ400A be used in conjunction with other protective devices?

    • Yes, the SMBJ400A can be used in combination with other protective devices to provide enhanced protection against voltage transients.

  10. Are there any specific layout considerations when using the SMBJ400A?

    • It is recommended to keep the traces between the SMBJ400A and the protected circuit as short as possible to minimize inductance and maximize the effectiveness of the device.