Germanium High Temperature NTC Interchangeable Thermistors Our Germanium thermistors are highly sensitive in the wide temperature range (-100oC - +300oC) and are ideal for applications in Medical, Automotive, Communications and others industries where small size, high thermo-sensitivity, and lower (than for Si-thermistors) resistance value are important. Ge High Temperature NTC Thermistors - Product List Why Si & Ge NTC High Temperature Thermisters are your best choice  AdSem offers Ge thermistors with the following characteristics: