ON Semiconductor
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1SMC18AT3
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1SMC18AT3

Product Overview

Category

1SMC18AT3 belongs to the category of TVS (Transient Voltage Suppressor) diodes.

Use

It is used to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

Characteristics

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

Package

1SMC18AT3 is available in a DO-214AB package.

Essence

The essence of 1SMC18AT3 lies in its ability to provide robust overvoltage protection for various electronic circuits.

Packaging/Quantity

It is typically packaged in reels with quantities varying based on customer requirements.

Specifications

  • Standoff Voltage: 15.3V
  • Breakdown Voltage: 17V
  • Maximum Clamping Voltage: 29.2V
  • Peak Pulse Current: 43.5A
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

1SMC18AT3 has two pins, anode, and cathode, which are denoted by the A and K symbols on the device.

Functional Features

  • Bi-directional TVS diode
  • Low incremental surge resistance
  • RoHS compliant

Advantages and Disadvantages

Advantages

  • Provides effective protection against voltage transients
  • Fast response time ensures minimal damage to protected circuits
  • Wide operating temperature range

Disadvantages

  • May require additional circuitry for comprehensive transient protection in complex systems
  • Higher cost compared to traditional transient protection methods

Working Principles

When a voltage transient occurs, the 1SMC18AT3 conducts and clamps the transient voltage to a safe level, protecting the downstream circuitry.

Detailed Application Field Plans

1SMC18AT3 is commonly used in: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to 1SMC18AT3 include: - P6SMB18AT3 - SMBJ18AT3 - SMCJ18AT3

This provides a comprehensive overview of the 1SMC18AT3 TVS diode, including its product details, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של 1SMC18AT3 בפתרונות טכניים

  1. What is 1SMC18AT3?

    • 1SMC18AT3 is a surface mount transient voltage suppressor diode, commonly used to protect electronic circuits from voltage spikes and transients.

  2. What is the maximum peak pulse power of 1SMC18AT3?

    • The maximum peak pulse power of 1SMC18AT3 is typically 1500 watts.

  3. What is the breakdown voltage of 1SMC18AT3?

    • The breakdown voltage of 1SMC18AT3 is typically 16.7 volts.

  4. What are the typical applications of 1SMC18AT3?

    • 1SMC18AT3 is commonly used in surge protection for telecommunications equipment, automotive electronics, industrial control systems, and power supplies.

  5. What is the operating temperature range of 1SMC18AT3?

    • The operating temperature range of 1SMC18AT3 is typically -55°C to +150°C.

  6. What is the reverse stand-off voltage of 1SMC18AT3?

    • The reverse stand-off voltage of 1SMC18AT3 is typically 15.3 volts.

  7. What package type does 1SMC18AT3 come in?

    • 1SMC18AT3 is available in a DO-214AB (SMC) package.

  8. What is the clamping voltage of 1SMC18AT3?

    • The clamping voltage of 1SMC18AT3 is typically 29.2 volts at a peak pulse current of 10A.

  9. How does 1SMC18AT3 provide overvoltage protection?

    • 1SMC18AT3 diverts excessive current away from sensitive components by providing a low-impedance path to ground during transient voltage events.

  10. What are the key features of 1SMC18AT3?

    • Key features of 1SMC18AT3 include low incremental surge resistance, fast response time, and high reliability for overvoltage protection in various electronic applications.