热敏电阻包括PTC和NTC热敏电阻，CTR．热敏电阻的主要特点是:①灵敏度较高，其电阻温度系数要比金属大10～100倍以上，能检测出10-6℃的温度变化；②工作温度范围宽，常温器件适用于-55℃～315℃，高温器件适用温度高于315℃（目前最高可达到2000℃），低温器件适用于-273℃～55℃；③体积小，能够测量其他温度计无法测量的空隙、腔体及生物体内血管的温度；④使用方便，电阻值可在0.1～100kΩ间任意选择；⑤易加工成复杂的形状，可大批量生产；⑥稳定性好、过载能力强

　　PTC Thermistors C953

　　The thermistor includes a PTC and a NTC thermistor, CTR. thermistor's main features are: ① high sensitivity, its temperature coefficient of resistance than metal in 10 ~ 100 times, can detect the temperature of 10-6 ℃ change; the wide range of working temperature, ambient devices applied to -55 ℃ ~ 315 ℃, temperature device applicable temperature more than 315 ℃ (current can reach a maximum of 2000 ℃), low temperature device applicable to -273 ℃ ~ 55 ℃; the volume is small, can measure other thermometer can measure spaces, cavities and vascular biology in vivo temperature; the use is convenient, the resistance value in 0.1 ～ 100k Ω between arbitrary choice; ⑤ easy processing into complex shape, can be produced in large quantities; the good stability, strong overload capacity.