A close-up of a blue metal oxide varistors ( MOVs ) with the text

Metal oxide varistors mov surge suppressor 32D series

32D Series Metal Oxide Varistors ( MOVs ) Key Features

● Cost-Effective, High-Quality Surge Protection: Safeguards electronics with robust surge suppression and competitive price.

● Fast Response: MOV surge suppressor reacts in under 25 nanoseconds.

● High Energy Absorption: Handles significant surges, ideal for lightning surge protection.

● Versatile Use: Suitable for consumer electronics, industrial, and home appliances etc.

● Durability: Low leakage current ensures long-lasting performance.

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Metal Oxide Varistors 32D Overview

Metal oxide varistors ( MOVs ) 32D series are essential components in modern electronics, providing robust protection against voltage surges,which work as MOV Surge Suppressor. These voltage-dependent resistors are primarily composed of zinc oxide (ZnO) ceramics mixed with other metal oxides such as bismuth, cobalt, and manganese. This composition allows metal oxide varistors to exhibit nonlinear current-voltage characteristics, acting like symmetrical diodes that protect electronic devices by diverting excessive voltage away from sensitive components.

Applications of Metal Oxide Varistors

Metal oxide varistors(MOVs) are widely used across various industries due to their effectiveness in surge suppression and transient voltage protection. Here are some of the key applications:

Surge Protection: MOV Surge Suppressor is extensively used in consumer electronics, industrial equipment, and telecommunications to safeguard circuits from voltage spikes caused by lightning or switching operations.
Power Supply Systems: They play a crucial role in stabilizing power supply circuits, protecting sensitive components from transient voltages.
Home Appliances: Metal oxide varistors are commonly found in refrigerators, microwaves, and air conditioners, where they help prevent damage from voltage fluctuations.
MOV Surge Suppressor 32D Advantages

MOV surge suppressor offers several key benefits, making them a preferred choice for protecting electronic circuits:

Fast Response Time: Metal oxide varistors ( MOVs ) can respond to voltage surges in less than 25 nanoseconds, providing effective transient voltage suppression.
High Energy Absorption: Capable of handling significant energy levels, Metal oxide varistors ( MOVs ) are ideal for protecting against high-energy transients such as lightning strikes or power surges.
Low Leakage Current: With minimal leakage current under normal operating conditions, MOV surge suppressor helps reduce energy waste and improve the overall efficiency of electronic devices.

Metal Oxide Varistors Key Features

Specifications of MOV Surge Suppressor 32D series

Specification	Value
Varistor Voltage Range	33~1600V
Max Allowable Voltage	20~1000V(AC), 26~1280V(DC)
Capacitance	700-6200pF @ 1kHz
Response Time	<25 nanoseconds
Energy Handling Capacity	High, suitable for lightning surge protection

Working Principles of Metal Oxide Varistors ( MOVs )

Metal oxide varistors ( MOVs ) are critical components in protecting electronic circuits from transient overvoltages. MOVs exhibit a symmetrical volt-ampere characteristic curve(see Figure as below), making them highly effective in surge suppression. Typically, a mov surge suppressor is connected in parallel within a circuit.

Under normal operating conditions, the metal oxide varistors maintain a high-impedance state, ensuring it does not interfere with the circuit's regular operation. However, when a transient overvoltage occurs—such as a spike caused by a lightning strike or power surge—the mov surge suppressor's impedance rapidly drops as it reaches its varistor voltage. In this low-resistance state, the Metal oxide varistors ( MOVs ) discharge the excessive current to the ground, effectively clamping the overvoltage within a safe level. This process protects downstream components from potential damage.

A graph showing the metal oxide varistors V-I characteristics with the forward and reverse regions labeled. The graph shows a non-linear relationship between voltage and current.

Key Functions of MOVs

High Voltage Protection: High voltage varistor is designed to safeguard sensitive electronic circuits by clamping abnormal transient voltages.
Reliable Surge Suppression: Metal oxide varistors ( MOVs ) are an essential part of surge protection, rapidly responding to overvoltage conditions to prevent circuit damage.

By integrating MOV Surge Suppressor in your circuit design, you ensure robust protection against transient overvoltage, enhancing the longevity and reliability of your electronic devices.

Metal Oxide Varistors Dimensions

Metal Oxide Varistors ( MOVs ) come in various sizes, with the 32D series being a common choice. The varistor element diameter typically measures 32mm, making them suitable for various industrial applications.

Selection of High Voltage Varistor

When selecting a high voltage metal oxide varistor, consider the maximum allowable voltage, varistor voltage, varistor clamping voltage, and energy absorption capabilities. Ensuring that the metal oxide varistors ( MOVs ) matches the specific voltage protection requirements of your application is crucial for optimal performance.

Metal Oxide Varistors Naming Rules

MOVs are categorized based on their voltage ratings, energy handling capacity, and application type. The naming convention typically includes series identifiers and specifications like maximum allowable voltage and varistor voltage.Details are as below:

Diagram explaining the naming rules of metal oxide varistors (MOVs) by company DXM Technology. It shows the breakdown of code components, including company code, element diameter, disc type, varistor voltage, and tolerance.

Model List of Metal Oxide Varistors 32D

Here’s a summary of the 32D series Metal Oxide Varistors models.

Metal Oxide Varistors User Reviews and Conclusion

User Reviews of MOV Surge Suppressor

Users consistently rate MOV surge suppressors highly for their reliability and performance in protecting electronic devices from voltage surges. Their fast response time and high energy absorption capacity are particularly praised.

Conclusion of Metal Oxide Varistors

High voltage metal oxide varistors are indispensable components in modern electronics, offering efficient protection against voltage surges. Their robust design, combined with excellent performance characteristics, ensures that electronic devices operate safely and reliably in various environments.

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