PTC热敏电阻经典应用
PTC是Posi tive Temperature Coefficient的缩写,意思是正的温度系数,泛指正温度系数很大的 半导体材料或元器件. 通常我们提到的PTC是指正温度系数热敏电阻,简称PTC热敏电阻.PTC热敏电 阻是一种典型具有温度敏感性的半导体 电阻,超过一定的温度(居里温度)时,它的电阻值随着温度的升高呈阶跃性的增高.
[此贴子已经被作者于2009-12-2 11:16:18编辑过]
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