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820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference

China Dongguan HOWFINE Electronic Technology Co., Ltd. certification
China Dongguan HOWFINE Electronic Technology Co., Ltd. certification
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820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference

820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference
820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference

Large Image :  820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference

Product Details:
Place of Origin: China
Brand Name: OEM
Certification: UL CQC VDE
Payment & Shipping Terms:
Minimum Order Quantity: 5000 Pieces
Price: CN Confer
Packaging Details: 200 pieces to each plastic bag / bulk, inner box:29.2cm*21cm*31.3cm, 5000 PCS/box
Delivery Time: 10-15work days
Payment Terms: L/C, T/T
Supply Ability: 100K Pieces per Month

820V Diameter 25mm Zinc Oxide Varistors ZNO Anti Interference

Model Number: 25D821K Type:: Varistor
Material:: Zinc Oxide Application: Automotive Electronics, Industrial Meters Etc
Resistance Tolerance: 10% Operating Temperature: -40℃ ~ +125℃
Package / Case: Dip Sealed Place Of Origin:: Guangdong, China
Rated Power: 1W Package Type: Throught Hole
Temperature Coefficient:: 0~-0.05%/℃ Circuit Type: Voltage Divider
High Light:

820V Zinc Oxide Varistors


25mm Zinc Oxide Varistors


Anti Interference ZNO Varistor

                         Varistor 25D821K DIP2 20+ voltage 820V diameter 25MM

 Varistors 25D821K are mainly used to limit harmful atmospheric overvoltage and operating overvoltage, can effectively protect the system or equipment: 1. In electric power industry, pressure sensitive material is often used to make arrester valve plate. High voltage insulators made of zinc oxide pressure-sensitive material can realize both insulation and transient over-voltage protection. 2. In electronic circuit, with over voltage protection, lightning protection, surge current suppression, peak pulse absorption, limiting, high voltage arc extinction, noise elimination, semiconductor device protection and other functions.



1. Small size, large flow capacity and energy tolerance;

2. Epoxy resin insulation sealing;

3. Response time: < 25ns

4. Ambient temperature: -40℃ ~ +85℃

5. Insulation resistance ≥500 MEgohms

6. Pressure-sensitive voltage temperature coefficient: -0.5%/℃

7. Chip diameter: 5, 7, 10, 14, 20, 25, 32, 40, 50mm

8. The allowable deviation of voltage sensitive voltage is K±10%, L±15%

Low leakage current

10. Superior limiting voltage characteristics


1. Transistor, diode, IC, thyristor and semiconductor switching components and a variety of electronic equipment overvoltage protection;

2. Surge absorption of household appliances, industrial appliances, relays and electronic valves;

3. Electrostatic discharge and noise signal elimination;

4 leakage protection switch over voltage protection;

5. Lightning protection and overvoltage protection for communication equipment such as telephones and SPC switches.

Voltage sensitive voltage: 18V-1800V

Film size: 5D, 7D, 10D, 14D, 20D

Footpitch: P: 5.0mm, P: 7.5mm, P: 10MM


Company Information


Our factory is an expert manufacturer of Film Capacitor which provides DC capacitors and AC capacitors. So far, our products have obtained UL, ENEC, CB, CQC, safety approval and company certification by ISO-9001:2008 quality assured firm.


We use efficient automatic equipment which ensures maximum consistency in your OEM orders to produce each capacitor. With 12 years of industrial experience, Don't hesitate to contact us


If you have any question, we always supply competitive price and good quality products.





1. Are you a manufacturer?

A: Yes, we are the manufacturer. We have one factory in DongGuan, Guangdong, China. You are warmly welcome to visit our factory.


2. Can I order if quantity less than MOQ?

Yes and it would be taken as sample order to production. We take more serious on sample order.


3. Can I get Free Samples?

Yes. If samples we have in stock would be provided free for testing. However, the shipping fee should be paid by your side.


4. Can I order with my LOGO printing, size, shape and package?

Yes, we do OEM. We also have professional design team for you if you need.


5. What is your lead-time?

OEM order: 15-20 DAYS. NORMAL order: 2-7 DAYS.


6. What's your guaranty?

Our company has a strict quality check system which ensures that our products achieve consistent quality standards. All quality problem or damage during delivery will be Refundable and Exchangeable.



Contact Details
Dongguan HOWFINE Electronic Technology Co., Ltd.

Contact Person: Lei

Tel: 18929192705

Send your inquiry directly to us (0 / 3000)