SMCJ85AHE3/9AT - Product Overview and Analysis

Introduction

The SMCJ85AHE3/9AT is a high-performance transient voltage suppressor diode designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. This entry provides a comprehensive overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protection against voltage transients induced by lightning, inductive load switching, and electrostatic discharge
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: DO-214AB (SMC), 2-Pin
• Essence: Provides robust protection for sensitive electronic equipment
• Packaging/Quantity: Available in reels or bulk packaging, quantity varies based on supplier

Specifications

• Peak Pulse Power: 1500W
• Breakdown Voltage: 85V
• Operating Voltage: 69.4V
• Clamping Voltage: 110V
• Peak Pulse Current: 43.5A
• Reverse Standoff Voltage: 85V
• Operating Temperature Range: -55°C to +175°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMCJ85AHE3/9AT features a standard 2-pin DO-214AB (SMC) package with a clear pin configuration as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• High Surge Capability: Capable of withstanding large surge currents without degradation
• Low Clamping Voltage: Provides effective protection by limiting the voltage across the protected circuit
• Fast Response Time: Rapidly responds to transient events, minimizing the risk of damage to connected equipment

Advantages and Disadvantages

Advantages

• Robust protection against voltage transients
• Fast response time
• Low clamping voltage

Disadvantages

• Higher cost compared to standard diodes
• Requires careful consideration of mounting and layout for optimal performance

Working Principles

The SMCJ85AHE3/9AT operates by diverting excessive current away from sensitive electronic components when a transient event occurs. When the voltage exceeds the breakdown voltage, the diode conducts, providing a low-impedance path for the transient current to flow through, thus protecting the downstream circuitry.

Detailed Application Field Plans

The SMCJ85AHE3/9AT finds extensive application in various industries, including: - Telecommunications - Industrial automation - Consumer electronics - Automotive electronics - Renewable energy systems

In these fields, the diode is used to protect sensitive electronic equipment from voltage surges and transients, ensuring reliable operation and longevity of the devices.

Detailed and Complete Alternative Models

Several alternative models to the SMCJ85AHE3/9AT include: - P6KE85CA - 1.5KE85A - SA85CA - SMAJ85A

These alternatives offer similar transient voltage suppression capabilities and can be considered based on specific application requirements.

In conclusion, the SMCJ85AHE3/9AT transient voltage suppressor diode offers robust protection against voltage transients, making it an essential component in safeguarding sensitive electronic equipment across various industries.

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