The WMF21-22D11MPUP8CB3.5 is an electronic part designed and manufactured by Tyohm. It is a through hole RoHS compliant part that consists of NTC thermistors. NTC thermistors are temperature-sensing resistors that have a negative temperature coefficient – as the temperature increases, their resistance decreases. This makes them ideal for applications such as temperature control or temperature sensing. The part has a maximum ambient temperature range of +125°C and requires a minimum operating voltage of only 0.6V DC. It comes with a solderable or mountable terminal, and its mechanical dimensions are 21.68mm x 15.77mm x 14.25mm. This product is RoHS compliant, which means that it meets all the stringent requirements of the Restriction of Hazardous Substances Directive of the European Union.