SMF14A-HE3-18

Product Category

The SMF14A-HE3-18 belongs to the category of surface mount TVS diodes.

Basic Information Overview

• Use: The SMF14A-HE3-18 is used for transient voltage suppression in electronic circuits, providing protection against voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.
• Characteristics: It offers low clamping voltage, high surge capability, and fast response time, making it suitable for a wide range of applications.
• Package: The SMF14A-HE3-18 is available in a compact, surface-mount package.
• Essence: Its essence lies in its ability to protect sensitive electronic components from damaging voltage transients.
• Packaging/Quantity: Typically supplied in reels or tubes, containing a specified quantity per package.

Specifications

• Peak Pulse Power: 200 Watts
• Breakdown Voltage: 15.6 Volts
• Operating Voltage: 12.8 Volts
• Clamping Voltage: 21.2 Volts
• Maximum Reverse Leakage Current: 1 µA
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMF14A-HE3-18 typically features a standard SOD-123FL package with two pins, one for the anode and the other for the cathode.

Functional Features

• Transient Voltage Suppression: Provides effective suppression of transient voltages to protect downstream electronic components.
• Fast Response Time: Rapidly clamps transient voltages to safe levels, minimizing the risk of damage.
• Low Clamping Voltage: Ensures that the protected circuitry is exposed to minimal voltage during transient events.

Advantages and Disadvantages

• Advantages:
  • Effective protection against transient voltage events.
  • Compact surface-mount package for easy integration into circuit designs.
  • Low clamping voltage ensures minimal stress on protected components.
• Disadvantages:
  • Limited peak pulse power compared to some higher-rated devices.
  • Operating temperature range may not be suitable for extreme environments.

Working Principles

When a transient voltage event occurs, the SMF14A-HE3-18 rapidly conducts, diverting the excess energy away from the protected circuitry. This action limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMF14A-HE3-18 is commonly used in various electronic systems, including: - Consumer electronics - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

• SMF5.0A: Lower breakdown voltage, suitable for lower voltage applications.
• SMF24A: Higher breakdown voltage, suitable for higher voltage applications.
• SMF10A: Medium breakdown voltage, offering a balance between protection and conduction characteristics.

This comprehensive range of alternative models allows designers to select the most suitable device based on specific application requirements.

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This entry provides a detailed overview of the SMF14A-HE3-18, covering its category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.