The TC626 is a temperature limit detector that notifies the system when measured temperature is above the factory-programmed setting. It is designed to replace mechanical (bimetal) temperature limit switches and offers increased ruggedness, higher reliability and greater setpoint accuracy. It requires no external components. The TC626 operates over a 55C to +125C temperature range. It is available in a TO-92 package, which is ideal for ambient temperature sensing applications. It is also available in a TO-220-3 package for heatsink temperature measurement applications.