20D471K MOV Varistor

20D471K MOV varistor (470V), also known as VDR-20D471K, is designed for surge and overvoltage protection in power supplies, industrial equipment and AC power input circuits. It provides fast response and stable clamping performance to help protect sensitive components from transient voltage spikes. Also known as: 20D471

This model is suitable for AC power lines, industrial control systems and power distribution equipment where stronger surge endurance and long-term reliability are required.

Key Electrical Characteristics:

Varistor Voltage (1mA): 470V ±10%

Maximum Continuous Voltage: 300VAC / 385VDC

Clamping Voltage: 775V

Peak Surge Current (8/20μs): 8kA

Maximum Energy (2ms): 173J

With a 20mm disc structure, it offers higher surge handling capability than smaller disc sizes, making it suitable for circuits exposed to heavier transient stress.

⚡ Common Challenges for Buyers & Engineers:

- High cost from major brands in repeat orders

- Some alternative sources show unstable batch performance

- Long lead times can delay project schedules

- Urgent sampling demand is not always supported quickly

✅ What We Offer:

- Stable and consistent quality for long-term supply

- Practical alternative to mainstream global brands

- Flexible MOQ for samples and trial orders

- Fast delivery support for urgent demand

- Free samples available for engineering evaluation

Applications:

AC power supply systems

Industrial control equipment

Motor drives

Power distribution units

Related MOV Varistor Models:

20D151K MOV Varistor

20D361K MOV Varistor

20D391K MOV Varistor

20D Series 20mm MOV Varistors

Replacement and Cross Reference

S20K300 (TDK EPCOS)

B72220S0301K101 (TDK EPCOS)

All trademarks and model references belong to their respective owners and are used for comparison purposes only.

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