P4SMA51 - Product Overview and Specifications

Introduction

P4SMA51 is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are widely used for protecting sensitive electronic components from voltage spikes and surges. The P4SMA51 diode exhibits specific characteristics, packaging, and quantity details that make it suitable for various applications.

Basic Information Overview

Category: Transient Voltage Suppressor (TVS) Diode
Use: Protection against voltage spikes and surges
Characteristics: Fast response time, low clamping voltage, high surge current capability
Package: SMA (DO-214AC)
Essence: Silicon TVS Diode
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

Peak Power Dissipation: 400W
Breakdown Voltage: 45.4V to 50.2V
Operating Temperature Range: -55°C to +150°C
Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The P4SMA51 diode has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

Transient Voltage Suppression: Effectively clamps transient overvoltage, protecting downstream components.
Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
Low Clamping Voltage: Limits the voltage across the protected device during transient events.

Advantages and Disadvantages

Advantages

Effective protection against voltage transients
Fast response time
Compact package size

Disadvantages

Limited power dissipation capability compared to larger TVS diodes
Higher clamping voltage than some specialized TVS diodes

Working Principles

When a voltage transient occurs, the P4SMA51 diode conducts and clamps the transient voltage to a safe level, preventing damage to the connected circuitry. This is achieved through the rapid conduction of the diode when the voltage exceeds its breakdown voltage.

Detailed Application Field Plans

The P4SMA51 diode finds extensive use in various applications, including: - Telecommunication Equipment: Protecting sensitive communication circuits from lightning-induced surges. - Consumer Electronics: Safeguarding USB ports, HDMI interfaces, and other I/O connections from voltage spikes. - Automotive Electronics: Shielding vehicle electronics from voltage transients induced by load dumps and other electrical disturbances.

Detailed and Complete Alternative Models

P4SMA6.8A: Similar TVS diode with lower breakdown voltage
P4SMA120A: Similar TVS diode with higher breakdown voltage
P4SMA33CA: Similar TVS diode with tighter breakdown voltage tolerance

In conclusion, the P4SMA51 diode serves as a reliable transient voltage suppressor, offering fast response and effective protection against voltage spikes. Its compact package and versatile application field plans make it a valuable component in various electronic systems.

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