Surge Suppressor Varistor 20D Series : Ultimate Protection for Your Electronics

The surge suppressor varistor from our 20D series is a premier MOV metal oxide varistor engineered to protect your electronic circuits from damaging voltage spikes and surges. Utilizing high-purity zinc oxide, this MOV Metal Oxide Varistor offers exceptional nonlinear resistance characteristics, ensuring rapid and effective response to voltage fluctuations. Whether you're safeguarding sensitive consumer electronics or critical industrial systems, our surge suppressor varistor delivers unmatched protection and reliability.

Surge Suppressor Varistor Product Overview

• Wide Voltage Range: The 20D series surge suppressor varistor operates efficiently across a voltage range from 18V to 1800V, making it versatile for numerous applications.
• High Energy Tolerance: Capable of handling large transient currents, this MOV Metal Oxide Varistor ensures enhanced system longevity by absorbing significant energy surges.
• Nonlinear Voltage Clamping: The MOV Metal Oxide Varistor effectively clamps voltage spikes, maintaining circuit integrity and protecting components from damage.
• Low Leakage Current: Ensures minimal impact on circuit performance by maintaining low leakage current, promoting energy efficiency.
• Symmetrical Performance: Consistently operates in both polarities, enhancing the reliability and effectiveness of the MOV Metal Oxide Varistor.
• Fast Response Time: Reacts immediately upon detecting a surge, providing prompt protection to sensitive electronics.
• Durability: Built with high-quality zinc oxide and other materials, the surge suppressor varistor offers long-lasting performance and reliability.

Varistor Naming Rules

Understanding the naming conventions of varistors is essential for selecting the right component for your application. The surge suppressor varistor naming typically reflects key specifications such as maximum allowable voltage and varistor voltage. For instance, the "20D" series indicates a 20mm disc diameter, followed by specific voltage ratings. This systematic naming helps in easy identification and selection of the appropriate surge suppressor varistor for various applications.

Here's a breakdown of how to interpret the varistor model names:

• Diameter: The first part of the model name, such as "20D," signifies the disc diameter in millimeters.
• Voltage Rating: The subsequent numbers represent the varistor voltage, indicating the specific voltage level at which the varistor begins to conduct and clamp the surge.
• Series Indicator: Additional letters or numbers may indicate specific series variations, such as the N (Standard) or J (High Surge & High Energy) Series.

By understanding these naming rules, you can easily identify the right surge suppressor varistor that meets your protection requirements, ensuring optimal performance and reliability.

Details are as below:

MOV Metal Oxide Varistor Model List

Explore our comprehensive list of surge suppressor varistor models designed to meet diverse protection needs. Each model is engineered to provide specific levels of protection, ensuring that you can find the perfect fit for your application.

Each model in the 20D series is tailored to offer specific protection characteristics, ensuring that your electronic systems remain safeguarded against a wide range of voltage surges and spikes.

Series Variations

The 20D series surge suppressor varistor includes two main variations: the N (Standard) Series and the J (High Surge & High Energy) Series. Each series is tailored to meet specific protection needs, ensuring comprehensive coverage across diverse applications.

• N (Standard) Series: Ideal for general-purpose surge protection, the N Series MOV Metal Oxide Varistor provides reliable protection for everyday electronic applications.
• J (High Surge & High Energy) Series: Designed for environments with higher surge demands, the J Series MOV Metal Oxide Varistor offers enhanced protection for critical and high-energy systems.

• Surge Suppressor Varistor Dimensions

  The 20D series surge varistor features a 20mm disc diameter, optimizing energy absorption while ensuring consistent performance across different voltage ratings.

MOV Metal Oxide Varistor Technical Specifications

Understanding the technical specifications of our surge suppressor varistor is essential for selecting the right component for your application. The 20D series is meticulously engineered to meet various protection requirements:

Applications of Surge Suppressor Varistor

The flexibility of our surge suppressor varistor makes it invaluable across various sectors of electronic engineering. Its effectiveness in surge protection ensures reliability and longevity in critical systems, safeguarding them from unpredictable voltage anomalies.

Common Applications

• Communication Systems: Protects telecommunication equipment from transient surges, ensuring uninterrupted communication and data transmission.
• Electrical Power Systems: Ensures the reliability of electricity meters, distribution cabinets, and power switches by preventing damage from power surges.
• Consumer Electronics: Safeguards home appliances, surge protection boxes, and voltage regulators from voltage spikes, thereby extending their operational lifespan.
• Industrial Machinery: Protects sensitive industrial equipment from voltage fluctuations that can cause malfunctions or downtime.
• Automotive Electronics: Ensures the protection of automotive electronic systems from voltage surges caused by electrical faults or lightning strikes.

Specific Applications

• Telephone systems
• Power surge protection boxes
• Lightning arresters
• Socket and distribution boxes
• Renewable energy systems
• Medical equipment
• Automated control systems
• Home automation devices
  • 

Advantages of Surge Suppressor Varistor

Our surge suppressor varistor offers numerous benefits that make it a preferred choice for protecting electronic systems. These advantages enhance the performance of your electronic devices while ensuring their longevity and reliability.

• Wide Voltage Range: The 20D series surge suppressor varistor is compatible with a broad spectrum of voltage applications, from low-voltage consumer electronics to high-voltage industrial machinery.
• High Energy Tolerance: Capable of handling large transient currents, the MOV Metal Oxide Varistor enhances system longevity by absorbing significant energy surges without degradation.
• Nonlinear Voltage Clamping: Effectively clamps voltage spikes, ensuring that the voltage remains within safe limits, thus providing robust protection for your circuits.
• Low Leakage Current: Maintains energy efficiency with minimal impact on circuit performance, ensuring that the surge suppressor varistor does not interfere with normal operation.
• Symmetrical Performance: Ensures consistent operation in both positive and negative voltage polarities, enhancing the overall reliability of the protection mechanism.
• Fast Response Time: Provides immediate action upon detecting a surge, preventing any potential damage to sensitive electronics by reacting faster than other protection devices.
• Durability: Built with high-quality materials, the MOV Metal Oxide Varistor offers long-lasting performance, reducing the need for frequent replacements and maintenance.
• Compact Design: The 20mm disc diameter ensures that the MOV Metal Oxide Varistor can be easily integrated into various circuit designs without occupying excessive space.
• Cost-Effective: Offers a balance between performance and cost, making it an economical choice for both consumer and industrial applications.
• Enhanced Safety: By effectively managing voltage spikes, the surge suppressor varistor contributes to the overall safety of electronic systems, preventing potential hazards caused by electrical surges.

Selection Guide for Surge Varistor

Choosing the right surge suppressor varistor is essential for optimal protection and performance of your electronic systems. Our 20D series offers a range of options to cater to different requirements. Here are the key factors to consider when selecting a MOV Metal Oxide Varistor:

• Nominal Voltage: Determine the typical operating voltage of your circuit. The 20D series offers a wide range from 18V to 1800V, ensuring compatibility with various applications.
• Maximum Continuous Operating Voltage (MCOV): This is the highest voltage the surge suppressor varistor can withstand without undergoing degradation. Selecting an appropriate MCOV ensures the longevity and reliability of the varistor.
• Clamping Voltage: The peak voltage that the MOV Metal Oxide Varistor will allow during a surge. A lower clamping voltage provides better protection but must be balanced with the circuit's voltage tolerance.
• Energy Absorption Capacity: The maximum energy the varistor can absorb during a transient event. Higher energy absorption capacity is essential for environments prone to significant voltage surges.
• Physical Size Constraints: Consider the available space within your circuit design. The 20D series' 20mm disc diameter ensures that it can fit into most standard configurations without compromising other components.
• Response Time: The speed at which the surge suppressor varistor reacts to voltage spikes. Faster response times provide better protection for sensitive electronics.
• Environmental Conditions: Assess the operating environment, including temperature ranges and exposure to elements. The 20D series is designed to perform reliably across a wide temperature range from -40°C to +85°C.
• Compliance and Standards: Ensure that the MOV Metal Oxide Varistor meets relevant industry standards and certifications for your specific application.

Working Principle of Surge Suppressor Varistor

The surge suppressor varistor operates on a straightforward yet effective principle to protect electronic circuits. Under normal operating conditions, the MOV Metal Oxide Varistor exhibits high impedance, ensuring it does not interfere with circuit functionality. When a transient surge voltage exceeds its breakdown voltage, the varistor's impedance decreases rapidly. This sudden drop in resistance allows the surge suppressor varistor to divert the surge current away from sensitive components, effectively clamping the voltage to a safe level and preventing potential damage.

The nonlinear resistance characteristic of the MOV Metal Oxide Varistor is key to its functionality. Unlike linear components, the varistor responds differently depending on the voltage level, providing tailored protection based on specific surge conditions. This dynamic response ensures that the surge suppressor varistor remains effective across a wide range of surge scenarios.

Additionally, the MOV metal oxide varistor technology employed in our 20D series ensures that the varistor can handle multiple surge events without significant degradation. This durability makes the MOV Metal Oxide Varistor a reliable choice for both short-term and long-term protection needs.

User Reviews and Summary

Customers using the 20D series surge suppressor varistors have consistently reported outstanding performance in safeguarding sensitive electronic equipment. The varistors are lauded for their robust energy tolerance and extensive voltage range, making them a preferred choice in both consumer and industrial applications.

Customer Feedback

• "The 20D series varistors have significantly improved the reliability of our telecom equipment. Highly recommended!"
• "Exceptional surge protection for our home appliances. Peace of mind during thunderstorms."
• "Reliable and durable. Our industrial systems have never been more protected."
• "The MOV metal oxide varistors from the 20D series have provided consistent performance in our power distribution cabinets."
• "Installation was straightforward, and the surge suppressor varistors have held up well against multiple surge events."

Metal Oxide Varistor Surge Protection Summary

In conclusion, the 20D series surge suppressor varistor offers unparalleled protection for electronic circuits across various industries. With a wide voltage range, high energy absorption capacity, and rapid response time, these MOV metal oxide varistors are essential for ensuring the longevity and reliability of your electronic systems.

The integration of advanced MOV technology in our MOV Metal Oxide Varistor ensures that your electronic devices remain protected against unpredictable voltage surges. Whether you're dealing with consumer electronics, industrial machinery, or critical communication systems, the 20D series provides the robust protection you need to maintain optimal performance and prevent costly downtime.

Investing in our surge suppressor varistor means choosing a solution that combines reliability, efficiency, and durability, ensuring that your electronic systems remain operational and protected under all conditions.

For more information on our surge suppressor varistor products, visit our product catalog and discover how our MOV metal oxide varistors can enhance the protection and reliability of your electronic systems.

© 2025 DXM Product. All rights reserved.
Author: Ivan Huang

Updated on 8th January 2025