The WMF21-5D15MGUP8CB3.5 with NTC Thermistors Through Hole RoHS is an electronic part manufactured by Tyohm. It is an NTC thermistor that is through-hole-mounted and RoHS-compliant. This thermistor measures 5D15MGUP8CB3.5 ohms and is used to measure temperature. It can be used for various applications, including temperature compensation, surge protection, circuit isolation, and overload protection. Furthermore, it is stable and durable, making it suitable for extended use.