The NCP21WF104J03RA is a negative temperature coefficient (NTC) thermistor manufactured by Murata. It is a 100K OHM 5% thermistor with an EIA 0204 (0603 metric) size. The temperature range of -55 to +125°C and the operating temperature range of -55 to +85°C, make this part suitable for use in a variety of testing, monitoring, and control of a range of electronic systems. The NCP21WF104J03RA features excellent accuracy, low power consumption, wide temperature range, and a maximum dissipation of 400 mW. This part is suitable for various surface mounting applications.