Directly heated negative temperature coefficient thermistors - Part 2: Sectional specification - Surface mount negative temperature coefficient thermistors (IEC 60539-2:2019); German version EN IEC 60539-2:2019
直接加热负温度系数热敏电阻器.第2部分:分规范.表面安装负温度系数热敏电阻器(IEC 60539-2-2019);德国版本EN IEC 60539-2:2019