TMOV20R420M

Introduction

The TMOV20R420M belongs to the category of metal oxide varistors (MOVs), which are used for surge protection in electronic and electrical systems. This component is designed to protect sensitive equipment from transient voltage surges and spikes.

Basic Information Overview

• Category: Metal Oxide Varistor (MOV)
• Use: Surge protection in electronic and electrical systems
• Characteristics: High energy absorption capability, fast response time
• Package: Radial leaded disc
• Essence: Protecting equipment from transient voltage surges
• Packaging/Quantity: Typically packaged in reels or trays

Specifications

• Voltage Rating: 420V
• Maximum Allowable Voltage: 340V
• Peak Current Capability: 20kA
• Operating Temperature Range: -40°C to 85°C
• Capacitance: 1000pF

Detailed Pin Configuration

The TMOV20R420M has a radial leaded disc package with two leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Connection point for one end of the varistor element - Pin 2: Connection point for the other end of the varistor element

Functional Features

• Surge Protection: Provides effective protection against transient voltage surges and spikes.
• Fast Response Time: Reacts quickly to voltage transients, minimizing the risk of damage to connected equipment.
• High Energy Absorption: Capable of dissipating large amounts of energy during surge events.

Advantages and Disadvantages

Advantages: - Effective surge protection - Fast response time - High energy absorption capability

Disadvantages: - Limited to specific voltage ratings - Can degrade over time with repeated surges

Working Principles

The TMOV20R420M operates based on the principle of varistor action, where its resistance decreases with increasing voltage. When a transient voltage surge occurs, the varistor rapidly conducts current, diverting the excess energy away from the protected circuit.

Detailed Application Field Plans

The TMOV20R420M is commonly used in various applications, including: - Power distribution systems - Telecommunication equipment - Industrial control systems - Consumer electronics - Renewable energy systems

Detailed and Complete Alternative Models

• TMOV14R320E: 320V voltage rating, 14mm disc size
• TMOV25S431K: 431V voltage rating, surface mount package
• TMOV34S471K: 471V voltage rating, high energy absorption

In conclusion, the TMOV20R420M is a vital component for safeguarding electronic and electrical systems against transient voltage surges, offering reliable surge protection and fast response times. Its specifications, functional features, and application versatility make it an essential part of modern surge protection strategies.

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