Ceramic PTC Thermistors have been used for various applications since Murata first commercialized them back in the 1950’s. Since then, Thermistors have been used in ceramic heaters, motor starters and degaussing relays with an excellent service record. As the PTC Thermistor technology evolved, new products for overheat sensing and over-current protection have been developed. These Thermistor-based circuit protection products offer advanced safety solutions for batteries, computers, cell phones, automobiles and many other cutting-edge products.