1.5SMC20CA - Product Encyclopedia Entry

Introduction

The 1.5SMC20CA is a component belonging to the category of transient voltage suppressor diodes. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protecting electronic circuits against voltage transients induced by lightning, inductive load switching, and electrostatic discharge.
• Characteristics: Fast response time, low clamping voltage, high surge current capability.
• Package: SMC (Surface Mount Compatible)
• Essence: Safeguarding sensitive electronic components from voltage spikes.
• Packaging/Quantity: Typically available in reels or tubes containing multiple units.

Specifications

• Part Number: 1.5SMC20CA
• Peak Pulse Power: 1500W
• Standoff Voltage: 17.1V
• Breakdown Voltage: 18.9V
• Maximum Clamping Voltage: 29.2V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The 1.5SMC20CA typically has two pins for surface mount installation. The pin configuration includes the cathode and anode terminals, which are crucial for proper orientation during assembly.

Functional Features

• Transient Voltage Suppression: Rapidly clamps transient voltages to safe levels, protecting downstream components.
• Low Clamping Voltage: Ensures minimal stress on protected circuits during transient events.
• Fast Response Time: Reacts quickly to voltage surges, minimizing the risk of damage to sensitive electronics.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients.
• Compact surface mount package for easy integration into circuit designs.
• High surge current capability for robust performance.

Disadvantages

• Limited to specific voltage ranges.
• May require additional circuitry for comprehensive overvoltage protection.

Working Principles

When a transient voltage spike occurs, the 1.5SMC20CA conducts current to divert the excess energy away from the protected circuit. By clamping the voltage to a safe level, it prevents damage to sensitive components.

Detailed Application Field Plans

The 1.5SMC20CA is commonly used in various applications, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• Alternative Model 1: 1.5SMC6.8CA

  • Standoff Voltage: 6.8V
  • Breakdown Voltage: 7.6V
  • Maximum Clamping Voltage: 11.4V

• Alternative Model 2: 1.5SMC33CA

  • Standoff Voltage: 33V
  • Breakdown Voltage: 36.7V
  • Maximum Clamping Voltage: 53.3V

• Alternative Model 3: 1.5SMC150CA

  • Standoff Voltage: 150V
  • Breakdown Voltage: 167V
  • Maximum Clamping Voltage: 243V

In conclusion, the 1.5SMC20CA transient voltage suppressor diode offers effective protection against voltage transients with its fast response time, low clamping voltage, and high surge current capability. Its compact SMC package makes it suitable for various applications, and alternative models are available to accommodate different voltage requirements.

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