The XT9M20ANA6M is a 20mm radial leaded NTC thermistor manufactured by Vishay. This thermistor is made from a ceramic core wire, has a nominal resistance of 9 megohms at 25ºC, a B constant of 3380 K, and a tolerance of ± 5%. It is used to detect and measure temperature in a variety of applications, such as HVAC systems and computers. The XT9M20ANA6M has a temperature range of -40°C to +125°C and can withstand voltages up to 250VAC.