What is the difference between varistor and thermistor

Home Products. Power NTC Thermistor. Compensation NTC Thermistor. Temperature Sensor. PTC Thermistor. Brief Introduction. News Update. Techonological News. Applical Principle. Previous Expo. Future Expo. Home Products About Us Contacts. I notice that many of the images on google have NTC at the top of the markings. It might be the same with PTC's. Thermistors can be measured on a resistance range.

Measure it, apply heat, and measure again; the resistance should change. Varistors often have a very high resistance and may show up as "open circuit" or "over range".

You can google on varistor or thermistor testing or measuring to learn more about what they should look when measured. Understanding the different purposes and constructions of the components will help, too. How to distinguish between Thermistor, Varistor and disk capacitor they usually looks the same The best practice is know what you buy and keep items packaged up separately then you don't need to try and distinguish item A from item B.

If you are trying to recover items from an unknown PCB i. Don't waste your time trying to save a few pennies because, almost certainly you will waste more value in lost time than money saved.

Buy new items and look after them. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. How to distinguish between Thermistor, Varistor and disk capacitor? Ask Question. Manufacturer Name. Cooling time constant air. Varistor Voltage typ. Energy absorption. Rated current. Surge current.

Rated voltage DC. Thermal conductivity Air. Power dissipation. Response temperature. Voltage rating AC. Standard number. Thermistors and Varistors Thermistors are electrical resistors whose value is dependent on the temperature of their material.