PTC yog cov ntawv luv ntawm Positive Temperature Coefficient, uas txhais tau hais tias qhov kub zoo coefficient, thiab feem ntau yog hais txog cov khoom siv semiconductor lossis cov khoom siv nrog qhov kub zoo coefficient. Feem ntau cov PTC peb hais txog qhov zoo kub coefficient thermistors, hu ua PTC thermistors. PTC thermistor yog qhov kub thiab txias-sensitive semiconductor tsis kam, thiab thaum nws siab tshaj qhov ntsuas kub (Curie kub), nws cov nqi kuj nce ib qib zuj zus nrog qhov kub thiab txias. PTC thermistor muab faib ua cov ntaub ntawv sib txawv raws li lawv cov ntaub ntawv: Ceramic PTC thermistor Organic polymer PTC thermistor PTC thermistor tau muab faib ua cov ntawv sib txawv raws li lawv siv: PTC thermistor rau tsis siv neeg demagnetization PTC thermistor rau qeeb pib PTC thermistor rau qhov kub thiab txias PTC thermistors rau Kev tiv thaiv overcurrent PTC thermistor rau overtemperature tiv thaiv PTC thermistor rau sensors Feem ntau, organic polymer PTC thermistor yog tsim rau kev tiv thaiv overcurrent lub hom phiaj, Ceramic PTC thermistors tuaj yeem siv rau ntau lub hom phiaj uas tau teev tseg saum toj no.
