SMCJ12-E3/57T - Product Encyclopedia Entry

Introduction

The SMCJ12-E3/57T is a part of the SMCJ series of surface mount transient voltage suppressors (TVS) designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor
• Use: Protection against voltage transients induced by lightning and other transient voltage events
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: DO-214AB (SMC)
• Essence: Provides robust protection for sensitive electronic equipment
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Peak Pulse Power: 1500 W
• Breakdown Voltage Range: 10.5 V to 58.1 V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMCJ12-E3/57T has a standard SMC package with two terminals for surface mounting onto printed circuit boards.

Functional Features

• Transient Voltage Suppression: Protects against voltage transients by diverting excess current away from sensitive components.
• Fast Response Time: Quickly responds to transient events to minimize potential damage to connected equipment.

Advantages and Disadvantages

Advantages: - Robust protection against voltage transients - Fast response time - Wide breakdown voltage range

Disadvantages: - Higher cost compared to traditional diode-based protection methods - Surface mount package may require additional care during assembly

Working Principles

The SMCJ12-E3/57T operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage across it exceeds the breakdown voltage. This effectively clamps the voltage to a safe level, protecting downstream components.

Detailed Application Field Plans

The SMCJ12-E3/57T is commonly used in various applications, including: - Telecommunication equipment - Industrial control systems - Power supplies - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• SMCJ10A-E3/57T: Similar characteristics with a lower breakdown voltage range
• SMCJ15A-E3/57T: Similar characteristics with a higher breakdown voltage range
• SMCJ12CA-E3/57T: Bi-directional TVS with similar characteristics

In conclusion, the SMCJ12-E3/57T is a reliable and efficient transient voltage suppressor suitable for a wide range of applications requiring robust protection against voltage transients.

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