SMCJ78-E3/57T

Introduction

The SMCJ78-E3/57T is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are widely used for protecting sensitive electronic components from voltage spikes and surges. The SMCJ78-E3/57T diode exhibits specific characteristics, packaging, and quantity information that make it suitable for various applications.

Basic Information Overview

• Category: Transient Voltage Suppressor (TVS) Diode
• Use: Protection against voltage spikes and surges in electronic circuits
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMC (DO-214AB)
• Essence: Provides transient voltage protection to sensitive electronic components
• Packaging/Quantity: Available in tape and reel packaging with quantities varying by manufacturer

Specifications

• Voltage - Reverse Standoff (Typ): 78V
• Voltage - Breakdown: 86.7V
• Clamping Voltage: 126V
• Peak Pulse Current: 30.6A
• Capacitance: 150pF
• Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

The SMCJ78-E3/57T diode has a standard SMC (DO-214AB) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

The primary function of the SMCJ78-E3/57T diode is to divert excessive current and voltage transients away from sensitive electronic circuits, thereby protecting them from damage due to voltage spikes and surges.

Advantages and Disadvantages

Advantages

• Fast response time
• Low clamping voltage
• High surge current capability
• Compact SMC package

Disadvantages

• Limited power dissipation capability
• May require additional circuitry for comprehensive protection in high-power applications

Working Principles

When a voltage spike or surge occurs, the SMCJ78-E3/57T diode rapidly conducts, providing a low-impedance path for the excess current to flow through. This action effectively limits the voltage across the protected circuit, safeguarding it from potential damage.

Detailed Application Field Plans

The SMCJ78-E3/57T diode finds extensive use in various applications, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Several alternative models to the SMCJ78-E3/57T diode exist, offering similar transient voltage suppression capabilities. Some notable alternatives include: - P6KE78CA - 1.5SMC78CA - SMBJ78CA - 78E3/TR13

In conclusion, the SMCJ78-E3/57T diode serves as a crucial component in protecting electronic circuits from voltage transients, offering fast response times and high surge current capabilities. Its compact SMC package and low clamping voltage make it an ideal choice for various applications, despite its limitations in power dissipation. Additionally, users have several alternative models to consider based on their specific requirements.

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