All ProductsPromax-Johnton ElecSemiconductorsIntegrated Circuits (ics)Instrumentation, Op Amps, Buffer Amps PROMAX-JOHNTON ELEC. SemiconductorsIntegrated Circuits (ics)Instrumentation, Op Amps, Buffer Amps PJ358CD DIP, DIP8,.3 MFR. Name: Promax-Johnton Elec. PJ358CS SOP, SOP8,.25 MFR. Name: Promax-Johnton Elec.