Diodes, transistors and similar semi-conductor devices; photosensitive semi-conductor devices; light emitting diodes; mounted piezo-electric crystals

CPC v2.1 class (Diodes, transistors and similar semi-conductor devices; photosensitive semi-conductor devices; light emitting diodes; mounted piezo-electric crystals) within 'Electronic valves and tubes; electronic components; parts thereof'. UN Central Product Classification grouping of related products at this level.