日系三极管前缀命名 Transistor codes: | | |Japanese Industrial Standard |Pro-electron code | |(JIS)   | | |SA: PNP HF transistor |The first letter indicates the | |SB: PNP AF transistor |material: | |SC: NPN HF transistor |A = Ge | |SD: NPN AF transistor |B = Si | |SE: Diodes |C = GaAs | |SF: Thyristors |R = compound materials. | |SG: Gunn devices |(Most common type is B.) | |SH: UJT |The second letter indicates the | |SJ: P-channel FET/MOSFET |device application: | |SK: N-channel FET/MOSFET ……