Vishay Semiconductor Diodes Division
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SMBJ20AHE3/5B
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SMBJ20AHE3/5B

Product Overview

The SMBJ20AHE3/5B belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are designed to protect sensitive electronics from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. The SMBJ20AHE3/5B is widely used in various electronic devices and systems to safeguard them against voltage surges. This entry provides a comprehensive overview of the SMBJ20AHE3/5B, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: DO-214AA (SMB), SMD/SMT
  • Essence: TVS diode for transient voltage protection
  • Packaging/Quantity: Tape & Reel (3,000 units)

Specifications

  • Part Number: SMBJ20AHE3/5B
  • Reverse Standoff Voltage: 20V
  • Breakdown Voltage: 22.2V
  • Peak Pulse Power: 600W
  • Operating Temperature Range: -55°C to +150°C
  • RoHS Compliant: Yes

Detailed Pin Configuration

The SMBJ20AHE3/5B follows the standard pin configuration for DO-214AA (SMB) package diodes, with two terminals for connection.

Functional Features

  • Fast response time to clamp transient voltages
  • Low clamping voltage to protect downstream components
  • High surge current capability for robust transient protection

Advantages

  • Effective protection against voltage transients
  • Compact SMD/SMT package for easy integration into circuit designs
  • RoHS compliant, ensuring environmental friendliness

Disadvantages

  • Limited to specific voltage ranges
  • May require additional circuitry for comprehensive overvoltage protection

Working Principles

When a transient voltage event occurs, the SMBJ20AHE3/5B rapidly conducts to divert excess current away from the protected circuit, thereby limiting the voltage across the load. This action helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The SMBJ20AHE3/5B is commonly used in the following applications: 1. Consumer electronics 2. Telecommunication equipment 3. Industrial control systems 4. Automotive electronics 5. Power supplies

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ15AHE3/5B
  • Alternative Model 2: SMBJ30AHE3/5B
  • Alternative Model 3: SMBJ40AHE3/5B
  • Alternative Model 4: SMBJ60AHE3/5B

In summary, the SMBJ20AHE3/5B transient voltage suppressor diode offers effective protection against voltage transients in a compact SMD/SMT package. Its fast response time, low clamping voltage, and high surge current capability make it an ideal choice for various electronic applications requiring robust transient voltage protection.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan SMBJ20AHE3/5B dalam solusi teknis

  1. What is the SMBJ20AHE3/5B?

    • The SMBJ20AHE3/5B 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 SMBJ20AHE3/5B?

    • The maximum working voltage of the SMBJ20AHE3/5B is 20V.

  3. What is the peak pulse power of the SMBJ20AHE3/5B?

    • The peak pulse power of the SMBJ20AHE3/5B is 600W.

  4. In what applications can the SMBJ20AHE3/5B be used?

    • The SMBJ20AHE3/5B can be used in various applications such as power supplies, telecommunications equipment, automotive electronics, and industrial controls.

  5. What are the key features of the SMBJ20AHE3/5B?

    • The key features of the SMBJ20AHE3/5B include low clamping voltage, fast response time, and high surge capability.

  6. How does the SMBJ20AHE3/5B provide protection to electronic circuits?

    • The SMBJ20AHE3/5B diverts excess current away from sensitive components during voltage transients, thereby protecting them from damage.

  7. What is the operating temperature range of the SMBJ20AHE3/5B?

    • The operating temperature range of the SMBJ20AHE3/5B is -55°C to 150°C.

  8. Can the SMBJ20AHE3/5B be used for ESD protection?

    • Yes, the SMBJ20AHE3/5B can also be used for electrostatic discharge (ESD) protection in various electronic devices.

  9. Are there any recommended layout considerations when using the SMBJ20AHE3/5B?

    • It is recommended to minimize the length and impedance of the traces connecting the SMBJ20AHE3/5B to the protected circuit to ensure optimal performance.

  10. Where can I find detailed technical specifications and application notes for the SMBJ20AHE3/5B?

    • Detailed technical specifications and application notes for the SMBJ20AHE3/5B can be found in the product datasheet provided by the manufacturer or on their official website.