MOV-20D621K Metal Oxide Varistor Thakor (VCRR)

About MOV-20D621K Metal Oxide Varistor Thakor (VCRR)

MOV20D621KMetal Oxide Varistor by Thakor VCRR

ProductDescription

The MOV20D621K is a Metal Oxide VaristorMOV designed to protect electronic circuits and electrical systems fromvoltage surges and transient events This varistor provides effectiveovervoltage suppression by clamping excess voltage levels and absorbinghighenergy pulses It is suitable for both AC and DC circuits making it aversatile component for industrial commercial and residential applications

TechnicalDetails

Model 20D621K

Varistor Voltage V 620V

Maximum Continuous Voltage

AC 385V

DC 505V

Clamping Voltage 1025V at a current of 50A

Energy Absorption Capability 220J

Maximum Surge Current 6500A 820 s waveform

Operating Temperature Range 40C to 85C

Disc Diameter 20mm standard for the 20D series

Leads Radial leads tinplated for secure soldering and corrosion resistance

Compliance RoHS and UL recognized for safety and environmental standards

Key Uses

Surge Protection in Electronics

Used in power supplies adapters and PCB designs to protect circuits from transient surges caused by lightning strikes switching events or power disturbances

AC Line Protection

Often installed in home appliances air conditioners refrigerators and washing machines and industrial equipment to protect against voltage spikes

Telecommunications Equipment

Protects telephone lines modems and signal transmission circuits

Automotive Electronics

Safeguards sensitive circuits in automotive applications such as ECUs infotainment systems and battery management systems

General Overvoltage Protection

Used in relays sensors and measuring instruments to ensure durability and reliability

Benefits

High Surge Current Capability

Protects devices from highenergy transients ensuring reliable operation

Fast Response Time

MOVs respond within nanoseconds clamping voltage spikes before they can damage sensitive components

CostEffective Solution

Economical protection compared to other overvoltage solutions like TVS diodes or gas discharge tubes

Versatile Applications

Works effectively in AC and DC circuits enhancing its usability across industries

Compact Design

The radiallead package enables easy integration into spaceconstrained PCB layouts

ComparableBrands and Part Numbers

If the MOV20D621K by Thakor VCRR isunavailable the following equivalent parts from other brands can beconsidered

Littelfuse

Part Number V20E385

Specifications Similar energy absorption and voltage ratings widely used for surge suppression

TDK

Part Number B72220S0381K101

Specifications Offers excellent clamping characteristics and surge handling

EPCOS TDK Group

Part Number S20K385

Specifications Similar diameter 20mm with nearly identical voltage and energy ratings

Panasonic

Part Number ERZV20D621

Specifications Comparable varistor voltage and surge current ratings

General Electric GE

Part Number V385LA20A

Specifications Meets industrial and consumer surge protection requirements

ConsiderationsWhen Selecting a Replacement

Match the varistor voltage V to your application to ensure proper operation

Ensure the replacement has a clamping voltage and energy absorption capacity equal to or higher than the original

Verify compatibility with operating temperatures and environmental conditions

Confirm compliance with applicable certifications eg UL RoHS

If additional technical details or designrecommendations are needed feel free to ask