Thermistors

Thermistors are semiconductor devices used as temperature sensors due to their sensitive resistance changes with temperature. Divided into two types—negative temperature coefficient (NTC) and positive temperature coefficient (PTC)—they exhibit varying resistance responses to temperature alterations. NTC thermistors decrease resistance as temperature rises, while PTC thermistors demonstrate an increase. This nonlinear relationship allows precise temperature measurement within a limited range, commonly in thermostats, automotive systems, and medical devices. Their compact size, high sensitivity, and fast response make thermistors integral in temperature monitoring and control applications, providing accuracy and efficiency in diverse industries.