The TCTR0402F100KF4750T is a NTC (Negative Temperature Coefficient) Thermistor 0402 RoHS manufactured by ResistorToday. It is a surface-mount thermistor with a resistance of 100k? (100,000ohms) at 10K (Kelvin, or -263.15ºC) and a temperature coefficient of -4.75% per 10ºC (Activity Coefficient). The thermistor also meets the European RoHS (Restriction of Hazardous Substances) requirements. It is used to measure temperature and environmental parameters in a variety of electronic and industrial applications.