The products within JC-22's scope include all semiconductor rectifier diodes and thyristors, as well as small-signal, regulator, reference, p-i-n, varactor tuning diodes, avalanche breakdown diodes (ABD) or transient voltage suppressors (TVS), polymer ESD suppressors (PES), avalanche rectifiers, metal oxide varistors (MOV), all selenium rectifiers, all nonthyristor trigger diodes, and assemblies including modules using all such devices regardless of mounting, power level, or packaging.

Activities include registration formats, standardization of test methods and procedures, and industry coordination for rectifiers and regulating diodes, thyristors, and transient voltage suppressors.