SM4T30CAY Product Overview

Introduction

The SM4T30CAY is a transient voltage suppressor (TVS) diode designed to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides a comprehensive overview of the SM4T30CAY, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The SM4T30CAY belongs to the TVS diode category, which is widely used in various electronic devices and systems to safeguard against voltage surges and transients.

Basic Information Overview

• Use: The SM4T30CAY is used to protect electronic circuits from overvoltage events.
• Characteristics: It offers low clamping voltage, high surge capability, and fast response time.
• Package: The diode is typically available in a surface-mount SMA package.
• Essence: Its essence lies in providing robust transient voltage protection for sensitive electronic components.
• Packaging/Quantity: The diode is commonly packaged in reels or tubes, with varying quantities based on customer requirements.

Specifications

• Voltage Rating: 30V
• Peak Pulse Power: 400W
• Operating Temperature Range: -55°C to +150°C
• RoHS Compliance: Yes

Detailed Pin Configuration

The SM4T30CAY typically features a standard SMA package with two pins for surface-mount soldering onto PCBs. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Fast Response Time: Rapid reaction to transient events ensures minimal impact on the protected circuitry.
• Low Clamping Voltage: Provides efficient protection without compromising the normal operation of the circuit.

Advantages and Disadvantages

Advantages

• High surge capability
• RoHS compliant
• Compact form factor

Disadvantages

• Limited to a specific voltage rating
• Sensitive to reverse polarity connection

Working Principles

When a transient voltage event occurs, the SM4T30CAY conducts current and clamps the voltage to a safe level, diverting the excess energy away from the protected circuit. This action helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The SM4T30CAY finds extensive use in various applications, including: - Telecommunication Equipment: Protects communication systems from lightning-induced surges. - Consumer Electronics: Safeguards sensitive electronic devices from ESD events. - Automotive Electronics: Provides transient voltage protection for automotive control units and infotainment systems.

Detailed and Complete Alternative Models

• SM4T33CAY: Similar TVS diode with a higher voltage rating of 33V.
• SM4T36CAY: TVS diode offering a higher voltage rating of 36V for increased protection.

In conclusion, the SM4T30CAY TVS diode serves as a crucial component in protecting electronic circuits from transient voltage events. Its robust design, fast response time, and compact form factor make it an ideal choice for a wide range of applications.

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