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SMCJ140A
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SMCJ140A

Product Overview

Category

The SMCJ140A belongs to the category of transient voltage suppressor (TVS) diodes.

Use

It is used to protect sensitive electronic devices from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Characteristics

  • Fast response time
  • Low clamping voltage
  • High surge current capability

Package

The SMCJ140A is available in a DO-214AB (SMC) package.

Essence

The essence of the SMCJ140A lies in its ability to quickly divert excessive current away from sensitive components, thereby protecting them from damage.

Packaging/Quantity

The SMCJ140A is typically packaged in reels or trays and is available in quantities ranging from hundreds to thousands per reel/tray.

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 140V
  • Maximum Clamping Voltage: 243V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMCJ140A has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Bi-directional protection
  • Low leakage current
  • High reliability

Advantages and Disadvantages

Advantages

  • Fast response time protects sensitive components
  • High surge current capability
  • Bi-directional protection for versatile applications

Disadvantages

  • Higher clamping voltage compared to some alternative models
  • Limited breakdown voltage

Working Principles

When a transient voltage surge occurs, the SMCJ140A conducts current to ground, limiting the voltage across the protected circuit. This rapid response helps prevent damage to the connected electronics.

Detailed Application Field Plans

The SMCJ140A is commonly used in the following applications: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMCJ140A include: - P6SMB140A - 1.5SMC140A - SMBJ140A

In conclusion, the SMCJ140A is a vital component in safeguarding electronic devices from transient voltage events, offering fast response times and high surge current capabilities. Its bi-directional protection and low leakage current make it suitable for a wide range of applications, although its higher clamping voltage and limited breakdown voltage should be considered when selecting a TVS diode for specific requirements.

技術ソリューションにおける SMCJ140A 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 the maximum voltage rating of SMCJ140A?

    • The maximum voltage rating of SMCJ140A is 140V.

  2. What is the peak pulse power dissipation of SMCJ140A?

    • The peak pulse power dissipation of SMCJ140A is 1500W.

  3. What is the typical clamping voltage of SMCJ140A?

    • The typical clamping voltage of SMCJ140A is 243V at 10A.

  4. What are the typical applications for SMCJ140A?

    • SMCJ140A is commonly used in surge protection for telecommunications equipment, industrial control systems, and automotive electronics.

  5. What is the operating temperature range of SMCJ140A?

    • The operating temperature range of SMCJ140A is -55°C to +150°C.

  6. Is SMCJ140A RoHS compliant?

    • Yes, SMCJ140A is RoHS compliant.

  7. What is the reverse stand-off voltage of SMCJ140A?

    • The reverse stand-off voltage of SMCJ140A is 140V.

  8. Does SMCJ140A have a low leakage current?

    • Yes, SMCJ140A has a low leakage current of less than 1µA.

  9. Can SMCJ140A be used for ESD protection?

    • Yes, SMCJ140A can be used for ESD (electrostatic discharge) protection in various electronic devices.

  10. What package type is SMCJ140A available in?

    • SMCJ140A is available in a surface mount SMC package.