Green disk varistor with the model number 53D221K printed on it. The varistor has two leads for connection.

Varistor MOV surge protector 53D series

53D Series Varistor Key Features

● High Surge Protection: The 53D Varistor provides robust defense against high-energy voltage surges, making it ideal for both industrial and consumer electronics.

● Cost-Effective, High-Quality: This disk varistor delivers reliable and efficient surge protection, offering great value for high-energy applications.

● Quick Response: The metal oxide varistor MOV reacts rapidly to transient over-voltages, ensuring immediate protection for sensitive electronics.

● Durable and Reliable: Built to withstand multiple surge events, the MOV surge protector ensures long-lasting performance.

● Wide Voltage Range: Efficiently operates from 200V to 1600V, providing flexibility for various electronic protection needs.

INQUIRY

Details

Varistor 53D Product Overview

The 53D series Varistor is designed for robust surge protection in high-energy applications. With a disc diameter of 53 mm, this disk varistor is engineered to handle substantial energy levels and provide reliable protection for sensitive electronic components against damaging voltage spikes.

This Varistor offers an exceptional circuit protection solution for application of lower DC voltage , providing higher surge ratings than ever before in such compact disk varistor.

With a maximum peak surge current rating of up to 70KA (8/20 µs pulse), it is designed to protect against extreme voltage spikes, including indirect lightning strike interference, system switching transients, and abnormal fast transients from power sources.

Applications of Varistor 53D

The 53D series Varistor is widely utilized across various applications due to their highly effective surge suppression capabilities:

- Semiconductor Protection: Ideal for protecting ICs, diodes, transistors, thyristors, or triac semiconductor devices from over-voltage conditions.
- Consumer Electronics: Provides effective surge protection in consumer electronic devices, ensuring longevity and reliability.
- Industrial Electronics: This disk varistor provides robust surge protection for industrial electronics, safeguarding critical equipment from transient voltage spikes that occur during operation, ensuring continuous and reliable performance.
- Power Supply Units: 53D series Metal oxide varistor MOV components ensure stability and robust protection for power supplies in high-demand environments, particularly those exposed to high voltage transients.
- Telecommunications: The 53D series varistor provides essential surge protection for communication lines and equipment, safeguarding against lightning strikes and other electrical disturbances.
- Home Appliances: Essential for surge protection in electronic home appliances, gas, and petroleum devices, maintaining operational safety.
- Electromagnetic Valve and Relay Surge Absorption: Suitable for protecting electromagnetic valves and relays from transient surges, ensuring smooth and reliable operation.

Advantages of Disk Varistor 53D

The 53D series Varistor offers several key advantages:
High Energy Absorption: The 53D series disk varistor is designed to absorb large amounts of transient energy up to 2500 Joules, effectively safeguarding against voltage spikes and surges.
Wide Operating Voltage Range: The 53D series metal oxide varistor MOV operates efficiently within a voltage range (V1mA) from 200V to 1600V, making it versatile for various applications.
Rapid Response to Transient Over-Voltage: These varistor components are engineered to respond quickly to transient over-voltage, providing critical protection for sensitive electronics.
Low Clamping Ratio with No Following-On Current: The disk varistor maintains a low clamping ratio and ensure no following-on current, offering reliable and efficient surge protection.
Durability: Engineered to withstand multiple surge events, ensuring a long operational life under normal conditions.

Key Features of Varistor 53D

Main Specifications of Disk Varistor 53D

Item	Feature	Specifications
1	Disk Varistor Diameter	53mm
2	Surge Protection	Up to 70KA (8/20 µs pulse)
3	Varistor Voltage Range	200~1600V
4	Max Allowable Voltage	130~1000V(AC), 170~1280V(DC)
5	Capacitance @ 1kHz	1900-15000pF
6	Energy Handling Capacity	High, suitable for lightning surge protection
7	Protection Against	Lightning, transients, power surges,Lower DC voltage circuits
8	Key Benefits	High surge ratings, compact design

Dimensions of 53D Metal Oxide Varistor MOV

The 53D series varistor has a standard disc diameter of 53mm, making them suitable for industrial applications that require robust surge protection.

Selection of Varistor 53D

When selecting a 53D varistor, consider factors like maximum allowable voltage, varistor voltage, clamping voltage, and energy absorption capabilities to ensure optimal protection for your application.

Working Principle of 53D Disk Varistor

At low voltages, 53D Varistor has high resistance, which decreases significantly as the voltage increases. When a voltage surge occurs, the Disk varistor conducts current, shunting it away from sensitive components and thus protecting them from damage. The transition from high to low resistance is due to the breakdown of diode-like junctions formed at the boundaries of the ZnO grains. This rapid response protects the circuit from potential damage.

Metal Oxide Varistor MOV Naming Rules

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

Diagram showing the naming rules for 53D varistor MOV surge protector, including company code, element diameter, disc type, varistor voltage, and tolerance.

Varistor Model List

Hereby details of the 53D series Varistor models and specifications.

User Reviews and Conclusion of Varistor

Disk Varistor User Reviews

Users consistently rate the 53D series disk varistor highly for their reliability in protecting electronic devices from voltage surges. Their high energy absorption and fast response time are particularly praised.

Conclusion of Varistor

This disc varistor is indispensable components in modern electronics, offering efficient and cost-effective protection against high-energy voltage surges. Their robust design, rapid response, and high energy absorption make them a reliable choice for a wide range of demanding applications, offering superior performance in safeguarding your critical electronic components.

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