This standard only applies to the quality classification of carbon film, glass glaze, wirewound and organic solid core low-power wirewound and non-wirewound potentiometers. This standard only gives key technical indicators and is not a complete standard. Must be used in conjunction with SJ 2789, SJ 2790, SJ 3217 and related detailed specifications.
SJ/T 9548.3-1993 history
1993SJ/T 9548.3-1993 Quality grading standard for low-power wirewound and non-wirewound potentiometers