14D621K MOV Varistor

The 14D621K is a 14mm MOV varistor engineered for protection against transient overvoltage in high energy environments. Its larger disc size increases energy absorption capability, making it suitable for circuits exposed to higher surge stress levels.

This model is commonly applied in power distribution systems, industrial equipment and electrical control circuits where stable surge protection is essential.

With a nominal varistor voltage of 620V, it effectively clamps voltage spikes generated by lightning surges, switching transients and unstable power conditions.

Electrical Characteristics:

Varistor Voltage (1mA): 620V ±10%

Maximum Continuous Voltage: 385VAC / 505VDC

Clamping Voltage (8/20μs): 1025V

Peak Surge Current (8/20μs): 4.5kA

Surge Energy (10/1000μs): 160J

Capacitance (1kHz): approx. 320pF

Mechanical & Physical:

Disc Diameter: 14mm

Lead Type: Radial

Lead Spacing: 7.5mm

Mounting: Through Hole (PCB)

Packaging: Bulk

Environmental:

Operating Temperature: -40°C to +105°C

Storage Temperature: -40°C to +125°C

Compliance:

RoHS Compliant

MOV type, ±10% tolerance

Applications:

AC power systems

Industrial automation equipment

Motor control units

Energy distribution systems

Electrical protection circuits

This varistor helps protect electronic components from transient voltage spikes and improves overall system durability.

Why Choose Our 14D621K:

* Suitable alternative to major brands such as TDK EPCOS for second sourcing

* 14mm disc design ensures higher energy handling capability

* Stable and repeatable performance across production batches

* Designed for high surge and industrial environments

* Reliable supply with flexible MOQ and fast delivery

* Engineering samples available for testing

Reference Models:

S14K385 (TDK EPCOS)

B72214S0381K101 (TDK EPCOS)

Disclaimer:

All trademarks, brand names and model numbers are the property of their respective owners. These references are for comparison purposes only and do not imply direct equivalence or endorsement.

For datasheet, quotation or sample request:

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