P4SMA27A - Product Overview

Introduction

The P4SMA27A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for protecting sensitive electronic devices from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. This entry provides an overview of the P4SMA27A, including its 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 Diode
• Use: Protection against voltage transients
• Characteristics: Fast response time, low clamping voltage
• Package: SMA package
• Essence: Safeguarding electronic devices from voltage spikes
• Packaging/Quantity: Typically available in reels of 3000 units

Specifications

• Peak Pulse Power: 400W
• Breakdown Voltage: 24.4V to 28.6V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The P4SMA27A typically features two pins, with the anode and cathode connections clearly marked on the SMA package.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltage to a safe level.
• Fast Response Time: Rapid reaction to voltage transients, minimizing potential damage to connected devices.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Compact SMA package for easy integration into circuit designs
• Fast response time ensures minimal impact on connected devices

Disadvantages

• Limited power dissipation capability compared to larger TVS diodes
• Higher clamping voltage compared to some alternative models

Working Principles

The P4SMA27A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown voltage, thereby diverting the transient energy away from the protected circuit.

Detailed Application Field Plans

The P4SMA27A finds extensive use in various applications, including: - Telecommunication Equipment: Protects sensitive communication components from voltage surges. - Industrial Control Systems: Safeguards control circuitry from transient voltage events. - Automotive Electronics: Shields automotive electronics from voltage spikes induced by the vehicle's electrical system.

Detailed and Complete Alternative Models

Some alternative models to the P4SMA27A include: - P4SMA24A: Lower breakdown voltage variant - P4SMA30A: Higher breakdown voltage variant - 1.5SMC24A: Surface mount TVS diode with similar characteristics

In conclusion, the P4SMA27A transient voltage suppressor diode offers effective protection against voltage transients in a compact SMA package. Its fast response time and wide operating temperature range make it suitable for diverse applications, although designers should consider its limitations in power dissipation and clamping voltage when selecting a TVS diode for specific requirements.