Zinc oxide varistor

Color: Blue

Verification: CE

Product description

Varistor is excellent in price and low in price, small in size, wide in operating voltage range, fast in response to overvoltage pulse, strong in inrush current resistance, low in leakage current (less than a few microamps to tens of microamps), and resistance It has an excellent temperature coefficient and is an ideal protection component. It is widely used in home appliances and other electronic products. It is often used to form overvoltage protection circuits, noise cancellation circuits, spark suppression circuits, lightning protection circuits, and waves. Surge voltage absorbing circuit and protection semiconductor component

working principle

The varistor is equivalent to a variable resistor that is connected in parallel to the circuit. When the circuit is in normal use, the varistor has a high impedance and a small leakage current, which can be regarded as an open circuit, which has little effect on the circuit. But when a very high surge voltage comes, the resistance of the varistor drops instantaneously so that he can flow a large current while clamping the voltage to a certain value.

Product specifications

Use attention

1. When the surge pulse is applied to the varistor with a short intermittent repetition, the average power at this time should be lower than the maximum static power.

2. If the thermistor is connected between the live part of the equipment and the metal casing, necessary measures must be taken to prevent accidents caused by electric shock.

3. When using the varistor, avoid direct sunlight. Do not work in the open air or outdoors.

4. The varistor should avoid working under the conditions of high temperature and high humidity such as wind, rain and water vapor, and should also avoid working under dust, salt and harmful gases. Protection box should be used if necessary

Company profile

Incorporated in 2006, Zhejiang Thor Electric Co., Ltd has built everything to offer a wide range of innovative and reliable surge protection solutions and products. All types and classes of our lightning and surge arresters 20KA~200KA(8/20μS) and 15KA~50KA(10/350μS) are tested and pass all the requirements based on their class.

FQA

Q: What advantages do you have?

A: We have been manufacturing and exporting SPD for more than 10 years !

We have CE and TUV certification

Q: Can I get some samples?

A: We support small quantity samples order ! please contact with our staff and leave your detail contact information , we will answer you within 24 hours

Q: How long does it take to deliver?

A: Fast delivery : 3~7days after payment

Q: Could you do OEM for us?

A: We have good experience on OEM service

Q: How long is your products warranty ?

A: 3 years warranty

Q: How to pay?

A: We accept T/T, Paypal, Western union, L/C, Trade Assurance