Positive Temperature Coefficient PTC Thermistor 84C 18R For Vehicle Air Purifier

What is the difference between PTC and NTC thermistor?

For an NTC thermistor, as temperature increases, resistance decreases. For a PTC thermistor as temperature increases, resistance increases.

Characteristic PTC Curve Of The PTC Thermistor Chip

The typical resistance curve of a semiconductor as a function of temperature is called PTC curve. The initial resistance of the PTC first decreases slightly with increasing temperature until the lowest resistance value Rmin is reached. Now the actual PTC behavior begins as the resistance increases non-linearly up to the nominal temperature Tc. At this point, also known as Curie temperature, the PTC’s resistance increases significantly. The operating range of the PTC extends from the nominal temperature Tc to the maximum final temperature Te, where hardly any current flows. The maximum temperature of a PTC depends on its ceramic composition and can therefore be determined in advance. Another characteristic of the PTC is its inrush current. As the resistance of the PTC is at its lowest value in Rmin, a particularly large amount of current can flow there, causing it to undergo an increased inrush current for a few seconds each time it is switched on.

Specification Of The PTC Thermistor Chip

1) Small household appliances use PTC heating element Features: high withstand voltage, high reliability, small power aging

2) PTC heating element for hair curler and hair straightener

3) Electric mosquito coil product Features: high temperature accuracy, good voltage resistance reliability, excellent resistance to voltage shock performance and resistance to mechanical shock performance.

4) PTC heating element for electric vehicle Features: high withstand voltage, high reliability, low power aging

5) PTC heating element for air conditioner Features: full voltage inspection, high reliability, small power aging, long service life.

6) PTC heating element for thermostat Features: brushed silver electrode on the surface, excellent electrode contact performance, high temperature accuracy, small power aging, long service life

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Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components.

We introduced advanced quality system,management systems and high-precision automation equipment from Germany, set up multiple production bases and continue to increase product lines. Our team consist of experienced engineers, passionate business elites, and regularly trained skilled workers, which provides a solid foundation for quality assurance and productivity performance. Moreover, our products have passed safety certifications of many countries and are favored by many consumers by years’ unremitting efforts.

We cooperated with universities and colleges, and will continue to research and develop new products , committed to high-quality circuit protection solutions, and provide global customers with efficient technology, products, and testing support to meet their requirements for rapid development of new products. We are gradually updating from "Made In China" to "Created In China" and to "Intelligent Manufacturing In China", from circuit design to product testing, we will provide you with one-stop service in the field of circuit protection.After years of intensive cultivation, we have maintained a good relationship with our peers and have become distributor of many famous electronic component brands to meet the diverse needs of customers.

The main products include: Thermistors, Varistors, Temperature Sensors, Fuses and corresponding Hardware and Plastic accessories, Inductors, Thermal Protector, Overload/Composite Protectors, Discharge Tubes, Photoresistors and Wiring Harnesses etc. Through the combination of different process devices,Ampfort Electronics can meet customers' individual circuit protection requirements. Our products are widely used in: power adapters, switching power supplies, chargers, transformers, computers, telephones, household appliances, communication products, lighting products, toy products, various instruments and various electronic cables, electrical products, IT, Consumer electronics, automobiles, batteries and other fields.

Choose us, Ampfort will be your loyal and reliable partner for protection circuit products !

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