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A blue surge suppressor varistor 20D with the brand
A blue surge suppressor varistor 20D with the brand

Surge suppressor varistor 20D series

20D Series Surge Suppressor Varistor Key Features

● Comprehensive Surge Protection: The 20D series surge suppressor varistor provides robust metal oxide varistor surge protection for high voltage applications.

● Wide Voltage Range: Designed to handle voltages from 18V to 1800V, ensuring versatility across various electronic systems.

● High Energy Tolerance: This surge varistor absorbs significant transient currents, extending the life of sensitive electronics.

● Fast Response: Immediate action upon detecting surges, protecting circuits effectively.

 Durable and Reliable: Built for long-term use with high-quality materials, making them essential in both consumer and industrial applications.

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Details

Surge Suppressor Varistor Product Overview

The 20D series surge suppressor varistor is a high-performance, metal oxide semiconductor device designed to protect electronic circuits from voltage spikes and surges. Comprising zinc oxide as the primary component, this surge varistor exhibit nonlinear resistance characteristics, making them highly responsive to voltage changes. When the voltage exceeds a specific threshold, the high voltage varistor's resistance drops sharply, allowing it to absorb the excess energy and shield sensitive electronic components. The 20D series includes both the N(Standard) Series and the J(High Surge & High Energy) Series, with metal oxide varistor surge protection element diameters of 20mm, covering a wide voltage range from 18V to 1800V.

Applications of Surge Suppressor Varistor

Surge suppressor varistor is widely utilized across various fields of electronic engineering due to their effectiveness in surge protection. Common applications include:

  1. Communication Systems: Protecting telecommunication equipment from transient surges.
  2. Electrical Power Systems: Ensuring the reliability of electricity meters, distribution cabinets, and power switches.
  3. Consumer Electronics: Safeguarding home appliances, surge protection boxes, and voltage regulators.

Specific Applications Include:

  • Telephone systems
  • Power surge protection boxes
  • Lightning arresters
  • Socket and distribution boxes
  • Diagram illustrating the application example of surge suppressor varistor. It shows a circuit with a line fuse, thermal fuse, monitor lead, DVM thermofuse, a surge suppressor varistor, an LED, a diode, a resistor, and a protected device.

Surge Varistor Advantages

Surge suppressor varistor offers several significant advantages in protecting electronic systems:

  • Wide Voltage Range: high voltage varistor suitable for a broad spectrum of voltage applications.
  • High Energy Tolerance: Capable of handling large transient currents, enhancing system longevity.
  • Nonlinear Voltage Clamping: Effectively clamps voltage spikes, providing robust protection.
  • Low Leakage Current: Surge varistor ensures energy ezfficiency with minimal impact on circuit performance.
  • Symmetrical Performance: Consistent operation in both polarities enhances reliability.
  • Fast Response Time: Immediate action upon surge detection prevents damage to sensitive electronics.
  • Durability: Built with high-quality materials for long-lasting performance.

Metal Oxide Varistor Surge Protection Key Features

High Voltage Varistor Specifications

The 20D series high voltage varistor is designed with the following specifications:

  • Varistor Voltage: 18V ~ 1800V
  • Max. Allowable Voltage: 10V ~ 1000V (AC), 14V ~ 1465V (DC)
  • Capacitance @ 1kHz: 320 pF ~ 28,500 pF

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.

Selection of Surge Varistor

When selecting a surge varistor, consider the following factors:

  1. Nominal Voltage: The typical operating voltage of the circuit.
  2. Maximum Continuous Operating Voltage (MCOV): The highest voltage the surge suppressor varistor can endure without degradation.
  3. Clamping Voltage: The peak voltage the surge varistor will allow during a surge.
  4. Energy Absorption Capacity: The maximum energy the metal oxide varistor surge protection can absorb during a transient event.
  5. Physical Size Constraints: The available space within the circuit design.

Working Principle of Surge Suppressor Varistor

In normal conditions, Surge Suppressor Varistor exhibits high impedance, ensuring they do not interfere with circuit operation. Upon detecting a transient surge voltage that exceeds their breakdown voltage, the surge varistor's impedance decreases rapidly, diverting the surge current away from sensitive components and protecting the circuit.

Surge Suppressor Varistor Naming Rules

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.Details are as below:

Naming rule of surge suppressor varistor 20D series

Surge Varistor Model List

Hereby the Model List of surge suppressor varistor.

Surge Suppressor Varistor User Reviews and Summary

User Reviews of Surge Varistor

Users of the 20D series surge suppressor varistors have reported excellent performance in protecting sensitive electronic equipment from unexpected surges. The varistors are praised for their robust energy tolerance and wide voltage range, making them a preferred choice in both consumer and industrial applications.

Metal Oxide Varistor Surge Protection Summary

In summary, the 20D series surge suppressor varistor offers comprehensive protection for electronic circuits across various industries. Their wide voltage range, high energy absorption, and rapid response time make them indispensable in ensuring the longevity and reliability of electronic systems.

Tags
metal oxide varistor circuit
metal oxide varistor circuit
metal oxide varistor surge protection
metal oxide varistor surge protection
metal oxide varistor
metal oxide varistor

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