Zinc oxide varistor

Color: Blue

Verification: CE

Product description

A varistor is a voltage-limiting component that is sensitive to voltage changes. Its characteristic is that at a specified temperature, when the voltage exceeds a certain critical value, its resistance will be drastically reduced. The current increases sharply, and the voltage and current are not linear.

Product specifications

Use attention

1. varistor should not be installed near heat or combustible components, it is best to have a gap greater than 3mm to ensure that it works within the specified operating temperature range

2. The operating voltage of the varistor (the voltage applied continuously across the varistor) should not exceed the maximum continuous operating voltage value.

3. In applications where surge currents are repetitive, the peak surge current and surge energy through the varistor should not exceed the pulse life characteristics.

4. 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.

working principle

When the voltage applied to the varistor is below its threshold, the current flowing through it is extremely small, which is equivalent to a resistor with an infinite value. That is, when the voltage applied to it is below its threshold, it is equivalent to an open state switch [1]. When the voltage applied to the varistor exceeds its threshold, the current flowing through it surges, which is equivalent to an infinitely small resistance. That is, when the voltage applied to it is above its threshold, it is equivalent to a closed state switch.

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.

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