MF Series NTC is used as overheat or overcurrent control and act as temperature sensor in circuit. It can provide practical and economical solution for temperature measurement and control equipment, temperature range -55-- +300. MF58 glass encapsulated precision series are made by technics of ceramic combined with semiconductor, glass encapsulated. MF52E bead type precision bead type precision series are resin coated, has the characteristics of high precision and quick response. Main Parameters: Tolerance factor 2mW/degree Thermal Time Constant 7S Rated Power 50mW Operating Temperature Range: -55 ~+300