With the ceaseless rise living standard now, the more and more many small new model home appliance product appears unceasingly, feasible PTC generates heat experiencing and observing gett- ing more and more broad application. For example: Warm milk is precious , the feeding bottle degass- ing boiler , leben machine , chocolate fountain machine, melt wax implement , electron heat preservat- ion mess tin , chocolate furnace , warm hand implement etc.PTC the dimension generating heat expe- riencing and observing having external form is nimble various , use installation to go to the lavatory, power may demand to adjust (general power arbitrarily according to the customer in 0 ~ 350 W range) , use voltage range(6 V ~ 240 V)etc. the material generating heater has no way to comparison merit.