SM15T12AHE3/57T - Product Overview

Introduction

The SM15T12AHE3/57T is a high-performance transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. This entry provides a comprehensive overview of the SM15T12AHE3/57T, including its product category, 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 (TVS) 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: SMA (DO-214AC)
• Essence: Provides robust protection for sensitive electronic components
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Part Number: SM15T12AHE3/57T
• Peak Pulse Power: 1500 W
• Standoff Voltage: 12 V
• Breakdown Voltage: 13.3 V to 14.7 V
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliant: Yes

Detailed Pin Configuration

The SM15T12AHE3/57T TVS diode features a standard SMA (DO-214AC) package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to safe levels
• Fast Response Time: Rapid reaction to transient events for enhanced protection
• High Surge Capability: Withstands high surge currents without degradation

Advantages and Disadvantages

Advantages

• Robust protection against voltage transients
• Low clamping voltage ensures minimal stress on protected circuits
• Compact form factor for easy integration into circuit designs

Disadvantages

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

Working Principles

The SM15T12AHE3/57T operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly switches into its low-impedance state, diverting excess current away from the protected circuit. This action effectively limits the voltage across the circuit to a safe level, safeguarding sensitive components.

Detailed Application Field Plans

The SM15T12AHE3/57T finds extensive application in various electronic systems requiring protection against voltage transients. Some key application fields include: - Telecommunication Equipment: Protects sensitive communication devices from lightning-induced surges - Industrial Control Systems: Safeguards control circuitry from inductive load switching transients - Consumer Electronics: Provides ESD protection for integrated circuits in consumer electronic products

Detailed and Complete Alternative Models

For applications requiring different voltage ratings or form factors, several alternative models are available from various manufacturers. Some notable alternatives to the SM15T12AHE3/57T include: - SM6T Series: Offers a range of standoff voltages and peak pulse powers - P6KE Series: Provides similar transient voltage suppression capabilities in a different package format - 1.5KE Series: Suitable for higher voltage transient protection requirements

In conclusion, the SM15T12AHE3/57T transient voltage suppressor diode offers robust protection against voltage transients in a compact and reliable package. Its fast response time, high surge capability, and low clamping voltage make it an ideal choice for safeguarding sensitive electronic components in diverse applications.

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