SM8S43-E3/2D

Introduction

The SM8S43-E3/2D is a robust and reliable 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 an overview of the product, including its category, use, characteristics, package, essence, packaging/quantity, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Product 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: SMC (DO-214AB)
• Essence: Robust transient voltage protection
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Peak Pulse Power: 600W
• Breakdown Voltage Range: 47.4V to 52.8V
• Operating Temperature Range: -55°C to +150°C
• Reverse Standoff Voltage: 43V
• RoHS Compliant: Yes

Detailed Pin Configuration

The SM8S43-E3/2D features a standard SMC (DO-214AB) package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• High Surge Capability: With a peak pulse power of 600W, the SM8S43-E3/2D can effectively handle high surge currents.
• Low Clamping Voltage: Provides reliable protection for sensitive electronics by limiting the voltage across the protected circuit.
• Fast Response Time: Rapid reaction to transient events ensures minimal impact on the protected equipment.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• RoHS compliant
• Compact SMC package for space-constrained applications

Disadvantages

• Limited breakdown voltage range compared to some alternative models
• May require additional components for comprehensive transient protection in complex systems

Working Principles

The SM8S43-E3/2D operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit and clamping the voltage to a safe level.

Detailed Application Field Plans

The SM8S43-E3/2D is suitable for a wide range of applications requiring transient voltage suppression, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

For applications requiring different breakdown voltage ranges or package types, alternative models to consider include: - SM8S36A-E3/2D: Breakdown Voltage Range: 32.2V to 36.8V, Package: SMC (DO-214AB) - SM8S33A-E3/2D: Breakdown Voltage Range: 29.5V to 32.6V, Package: SMC (DO-214AB) - SM8S30A-E3/2D: Breakdown Voltage Range: 27.6V to 32.4V, Package: SMC (DO-214AB)

In conclusion, the SM8S43-E3/2D transient voltage suppressor diode offers robust protection against voltage transients in a compact and reliable package, making it an ideal choice for various electronic applications.

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