DIN IEC 60852-5-1995 电信和电子设备用变压器和电感器的外形尺寸.第5部分:使用C铁芯的Q系列变压器和电感器
Outline dimensions of transformers and inductors for use in telecommunication and electronic equipment - Part 5: Transformers and inductors using the series Q of C-cores (IEC 60852-2:1994)