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SMDJ85
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SMDJ85 - Product Encyclopedia Entry

Introduction

The SMDJ85 belongs to the category of transient voltage suppressor diodes. These diodes are widely used for protecting sensitive electronic components from voltage spikes and transients. The SMDJ85 is designed to provide effective protection against transient overvoltage conditions in a variety of applications.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Protection against voltage spikes and transients
  • Characteristics: Fast response time, low clamping voltage, high surge capability
  • Package: Surface mount
  • Essence: Safeguarding electronic circuits from voltage surges
  • Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

  • Voltage Rating: 85V
  • Peak Pulse Power: 3000W
  • Operating Temperature Range: -55°C to +150°C
  • Mounting Type: Surface Mount
  • Package / Case: DO-214AB (SMC)

Detailed Pin Configuration

The SMDJ85 typically follows the standard pin configuration for surface mount diodes, with the anode and cathode connections clearly marked on the package.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltages to a safe level
  • Fast Response Time: Rapid reaction to voltage spikes for enhanced protection
  • Low Clamping Voltage: Ensures minimal stress on protected circuits during transient events
  • High Surge Capability: Capable of handling large surge currents without degradation

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • Compact surface mount package
  • High surge capability

Disadvantages

  • Limited to specific voltage ratings
  • May require additional circuitry for comprehensive surge protection in some applications

Working Principles

The SMDJ85 operates by diverting excessive transient currents away from sensitive components, thereby limiting the voltage across the protected circuit. When a transient voltage spike occurs, the diode rapidly conducts, providing a low-impedance path for the excess current and clamping the voltage to a safe level.

Detailed Application Field Plans

The SMDJ85 is commonly used in various applications including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • SMDJ5.0A: 5.0V rating
  • SMDJ12A: 12V rating
  • SMDJ24A: 24V rating
  • SMDJ58A: 58V rating

In conclusion, the SMDJ85 transient voltage suppressor diode offers reliable protection against voltage transients in a compact surface mount package, making it suitable for a wide range of electronic applications.

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技術ソリューションにおける SMDJ85 の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is SMDJ85?

    • SMDJ85 is a type of TVS (transient voltage suppressor) diode designed to protect electronic circuits from voltage spikes and transients.

  2. What is the maximum working voltage of SMDJ85?

    • The maximum working voltage of SMDJ85 is 85 volts.

  3. What is the peak pulse power of SMDJ85?

    • The peak pulse power of SMDJ85 is typically 3000 watts.

  4. How does SMDJ85 protect electronic circuits?

    • SMDJ85 clamps the voltage during transient events, diverting excess current away from sensitive components and preventing damage.

  5. In what applications is SMDJ85 commonly used?

    • SMDJ85 is commonly used in power supplies, telecommunications equipment, automotive electronics, and industrial control systems.

  6. What are the key features of SMDJ85?

    • Some key features of SMDJ85 include its low clamping voltage, fast response time, and high surge capability.

  7. Can SMDJ85 be used for ESD protection?

    • Yes, SMDJ85 can be used for electrostatic discharge (ESD) protection in various electronic devices and systems.

  8. What is the temperature range for SMDJ85?

    • SMDJ85 typically has a wide operating temperature range, from -55°C to 150°C, making it suitable for diverse environments.

  9. Are there any recommended layout considerations when using SMDJ85?

    • It is recommended to minimize the length of the traces connecting SMDJ85 to the protected circuit and to provide a low-inductance path to ground.

  10. What are some alternatives to SMDJ85 for transient voltage suppression?

    • Alternatives to SMDJ85 include other TVS diodes such as SMAJ, SMBJ, and SMCJ series, each with different voltage and power ratings to suit specific application requirements.