Vishay Semiconductor Diodes Division
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SMCJ70A-E3/9AT
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SMCJ70A-E3/9AT

Product Overview

Category

The SMCJ70A-E3/9AT belongs to the category of semiconductor devices, specifically a transient voltage suppressor (TVS) diode.

Use

It is used to protect sensitive electronic components 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
  • RoHS compliant

Package

The SMCJ70A-E3/9AT is typically available in a DO-214AB (SMC) package.

Essence

The essence of the SMCJ70A-E3/9AT lies in its ability to divert excessive current away from sensitive components, thereby safeguarding them from damage due to voltage spikes.

Packaging/Quantity

The SMCJ70A-E3/9AT is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 77.8V
  • Maximum Clamping Voltage: 124V
  • Operating Temperature Range: -55°C to 150°C
  • Forward Voltage: 3.5V at 35A

Detailed Pin Configuration

The SMCJ70A-E3/9AT typically has two pins, anode, and cathode, which are clearly labeled for easy identification.

Functional Features

  • Bi-directional TVS diode
  • Low incremental surge resistance
  • High temperature stability
  • ESD protection up to ±30kV contact discharge per IEC 61000-4-2

Advantages

  • Provides robust overvoltage protection
  • Fast response time ensures minimal impact on the protected circuit
  • Wide operating temperature range allows for versatile application

Disadvantages

  • Higher cost compared to traditional transient voltage suppression methods
  • Requires careful consideration of placement and routing for optimal performance

Working Principles

When a transient voltage event occurs, the SMCJ70A-E3/9AT rapidly conducts excess current to ground, limiting the voltage across the protected circuit to a safe level.

Detailed Application Field Plans

The SMCJ70A-E3/9AT is widely used in various applications including: - Telecommunications equipment - Automotive electronics - Industrial control systems - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

  • P6KE68A
  • 1.5KE75A
  • SMAJ70A

In conclusion, the SMCJ70A-E3/9AT is a critical component in protecting electronic circuits from transient voltage events, offering fast response, high surge current capability, and reliable performance across diverse applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMCJ70A-E3/9AT v technických řešeních

  1. What is the SMCJ70A-E3/9AT?

    • The SMCJ70A-E3/9AT is a surface mount transient voltage suppressor diode designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

  2. What is the maximum peak pulse current of SMCJ70A-E3/9AT?

    • The maximum peak pulse current of SMCJ70A-E3/9AT is 300A.

  3. What is the breakdown voltage of SMCJ70A-E3/9AT?

    • The breakdown voltage of SMCJ70A-E3/9AT is 77.8V.

  4. What are the typical applications of SMCJ70A-E3/9AT?

    • SMCJ70A-E3/9AT is commonly used in telecommunications equipment, industrial automation systems, power supplies, and other electronic devices requiring protection against voltage surges.

  5. What is the clamping voltage of SMCJ70A-E3/9AT?

    • The clamping voltage of SMCJ70A-E3/9AT is 112V at 10A.

  6. What is the operating temperature range of SMCJ70A-E3/9AT?

    • The operating temperature range of SMCJ70A-E3/9AT is -55°C to +150°C.

  7. How does SMCJ70A-E3/9AT provide overvoltage protection?

    • SMCJ70A-E3/9AT diverts excessive current away from sensitive components by clamping the voltage to a safe level during transient events.

  8. Is SMCJ70A-E3/9AT RoHS compliant?

    • Yes, SMCJ70A-E3/9AT is RoHS compliant, making it suitable for use in environmentally conscious designs.

  9. What package type does SMCJ70A-E3/9AT come in?

    • SMCJ70A-E3/9AT is available in a DO-214AB (SMC) package, which is suitable for surface mount applications.

  10. Can SMCJ70A-E3/9AT be used for surge protection in automotive electronics?

    • Yes, SMCJ70A-E3/9AT can be used for surge protection in automotive electronics, such as in-vehicle infotainment systems and engine control units.