NTC thermistors are packaged as a Tape & Reel (TR). The 1206 package contains it for your convenience. NTC thermistors are capable of reliable operation at a maximum operating temperature of 125°C. In order to ensure reliability, NTC thermistors can be operated at a minimum temperature of -55°C. Total number of terminations on these NTC thermometers is 2. To make an NTC thermistor work properly, it needs to have the 2 pins connected.