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SMBJ28
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SMBJ28 - Product Overview

Introduction

The SMBJ28 belongs to the category of transient voltage suppressor (TVS) diodes, which are widely used for protecting sensitive electronics from voltage spikes and transients. This entry provides a comprehensive overview of the SMBJ28, 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
  • Characteristics: Fast response time, low clamping voltage, high surge capability
  • Package: SOD-123FL
  • Essence: Safeguarding electronic circuits from voltage surges
  • Packaging/Quantity: Typically available in reels of 3000 units

Specifications

  • Voltage - Reverse Standoff (Typ): 28V
  • Voltage - Breakdown: 31.1V
  • Clamping Voltage: 45.4V
  • Peak Pulse Current: 10A
  • Capacitance: 150pF
  • Operating Temperature: -55°C to 150°C
  • Mounting Type: Surface Mount
  • Package / Case: SOD-123FL

Detailed Pin Configuration

The SMBJ28 typically features two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Rapid response to transient over-voltage conditions
  • Low clamping voltage to protect sensitive electronic components
  • High surge capability for reliable protection

Advantages and Disadvantages

Advantages

  • Effective protection against voltage spikes
  • Fast response time
  • Compact surface-mount package

Disadvantages

  • Limited peak pulse current compared to higher-rated TVS diodes
  • Higher capacitance may affect high-frequency signal integrity

Working Principles

The SMBJ28 operates by diverting excess transient current away from sensitive components when a voltage spike occurs. It rapidly clamps the voltage to a safe level, preventing damage to the connected circuitry.

Detailed Application Field Plans

The SMBJ28 is commonly used in various applications, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative TVS diode models similar to the SMBJ28 include: - SMAJ28A - P6SMBJ28A - 1.5SMCJ28A - SMCJ28CA

In conclusion, the SMBJ28 transient voltage suppressor diode offers effective protection against voltage spikes and transients, making it an essential component in safeguarding sensitive electronic circuits across diverse industries.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMBJ28 en soluciones técnicas

  1. What is the SMBJ28?

    • The SMBJ28 is a type of transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum working voltage of the SMBJ28?

    • The SMBJ28 has a maximum working voltage of 28 volts.

  3. What is the peak pulse power of the SMBJ28?

    • The peak pulse power of the SMBJ28 is typically 600 watts.

  4. What are the typical applications of the SMBJ28?

    • The SMBJ28 is commonly used in applications such as telecommunications equipment, industrial control systems, and automotive electronics for transient voltage protection.

  5. What is the clamping voltage of the SMBJ28?

    • The clamping voltage of the SMBJ28 is the voltage at which it begins to conduct significant current during a transient event, and it is typically around 44.7 volts.

  6. How does the SMBJ28 provide protection against voltage transients?

    • The SMBJ28 diverts excess current away from sensitive components by shunting it to ground during transient events, thereby protecting the circuitry from damage.

  7. What is the response time of the SMBJ28?

    • The response time of the SMBJ28 is very fast, typically responding within nanoseconds to clamp the voltage during transient events.

  8. Can the SMBJ28 be used in high-speed data line protection?

    • Yes, the SMBJ28 is suitable for protecting high-speed data lines such as USB, Ethernet, and HDMI interfaces from voltage transients.

  9. What is the operating temperature range of the SMBJ28?

    • The SMBJ28 is designed to operate within a temperature range of -55°C to 150°C, making it suitable for a wide range of environments.

  10. Are there any specific layout considerations when using the SMBJ28 in a circuit?

    • It is important to minimize the length and impedance of the traces connecting the SMBJ28 to the protected circuitry to ensure optimal transient protection performance.