View bc636 datasheet:

BC636 ® SMALL SIGNAL PNP TRANSISTOR PRELIMINARY DATA Ordering Code Marking Package / Shipment BC636 BC636 TO-92 / Bulk BC636-AP BC636 TO-92 / Ammopack SILICON EPITAXIAL PLANAR PNP TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE NPN COMPLEMENTARY TYPE IS BC635 TO-92 TO-92 APPLICATIONS Bulk Ammopack WELL SUITABLE FOR TV AND HOME APPLIANCE EQUIPMENT SMALL LOAD SWITCH TRANSISTOR WITH HIGH GAIN AND LOW SATURATION VOLTAGE INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V -45 V CER Collector-Emitter Voltage (R = 1K?) BE V Collector-Emitter Voltage (I = 0) -45 V CEO B VCES Collector-Emitter Voltage (VBE = 0) -45 V VEBO Emitter-Base Voltage (IC = 0) -5 V IC Collector Current -1 A ICM Collector Peak Current -1.