，。 Low current, Low voltage. / Applications 。 General purpose and switching application. / Equivalent Circuit / Pinning 123 PIN1：Emitter PIN 2：Base PIN 3：Collec.

。 General purpose and switching application. / Equivalent Circuit / Pinning 123 PIN1：Emitter PIN 2：Base PIN 3：Col.

TO-92(R) PNP 。Silicon PNP transistor in a TO-92(R) Plastic Package.  / Features ，。 Low current, Low voltage. / Applications 。 General purpose and switching application. / Equivalent Circuit / Pinning 123 PIN1：Emitter PIN 2：Base PIN 3：Co.

BC550

BC550A

BC550B

BC550C

BC556

BC556A

BC556B

BC556C

BC557A

BC557B

BC557C

BC558

BC558A