P4SMA18A - Product Overview

Introduction

P4SMA18A 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, electrostatic discharge (ESD), and other transient voltage events. This entry provides an overview of the basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of P4SMA18A.

Basic Information Overview

Category: Transient Voltage Suppressor Diode
Use: Protection against voltage transients induced by lightning, ESD, and other transient voltage events
Characteristics: Fast response time, low clamping voltage, high surge current capability
Package: SMA (DO-214AC)
Essence: Silicon-based TVS diode
Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

Peak Pulse Power: 400W
Standoff Voltage: 15.3V
Breakdown Voltage Range: 17.0V to 21.2V
Maximum Clamping Voltage: 24.4V at 1A
Operating Temperature Range: -55°C to +150°C
Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The P4SMA18A diode has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

Fast response to transient voltage events
Low clamping voltage to protect downstream components
High surge current capability for robust protection

Advantages and Disadvantages

Advantages

Effective protection against voltage transients
Fast response time
Compact package size
Wide operating temperature range

Disadvantages

Limited power dissipation capability
May require additional circuitry for comprehensive protection in some applications

Working Principles

P4SMA18A operates based on the principle of avalanche breakdown. When a transient voltage event occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

P4SMA18A finds extensive use in various applications, including: - Telecommunication equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to P4SMA18A include: - P4SMA6.8A - P4SMA10A - P4SMA15A - P4SMA22A - P4SMA30A

These alternative models offer varying standoff voltages and peak pulse powers to cater to different application requirements.

In conclusion, P4SMA18A serves as a crucial component in safeguarding electronic circuits from transient voltage events. Its fast response time, low clamping voltage, and high surge current capability make it a reliable choice for diverse applications.

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