P4SMA20C - Product Overview and Analysis

Introduction

The P4SMA20C is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used for protecting sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. This entry provides an in-depth overview of the P4SMA20C, 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 induced by lightning, ESD, and other transient voltage events
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMA package
• Essence: Silicon TVS diode
• Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

• Voltage - Reverse Standoff (Typ): 17.1V
• Voltage - Breakdown (Min): 18.9V
• Voltage - Clamping (Max) @ Ipp: 29.2V
• Current - Peak Pulse (10/1000µs): 43.5A
• Power - Peak Pulse: 400W
• Type: Zener
• Unidirectional Channels: 1
• Polarity: Unidirectional

Detailed Pin Configuration

The P4SMA20C typically has two pins, with one serving as the anode and the other as the cathode. The pinout configuration is as follows: - Anode (A) - Cathode (K)

Functional Features

• Fast Response Time: Rapid reaction to transient voltage events
• Low Clamping Voltage: Limits the voltage across the protected circuit
• High Surge Current Capability: Ability to handle large surge currents without damage

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Low clamping voltage
• High surge current capability

Disadvantages

• Limited to unidirectional protection
• Requires proper installation and placement for optimal performance

Working Principles

The P4SMA20C 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 and limiting the voltage across it.

Detailed Application Field Plans

The P4SMA20C 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

• Alternative Model 1: P6SMB20CA
  • Category: Transient Voltage Suppressor Diode
  • Use: Similar to P4SMA20C
  • Characteristics: Comparable to P4SMA20C
  • Package: SMB package
• Alternative Model 2: 1.5SMC20CA
  • Category: Transient Voltage Suppressor Diode
  • Use: Similar to P4SMA20C
  • Characteristics: Comparable to P4SMA20C
  • Package: SMC package

In conclusion, the P4SMA20C is a vital component in safeguarding electronic circuits from transient voltage events. Its fast response time, low clamping voltage, and high surge current capability make it a preferred choice in various industries.

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