View 2n3904 datasheet:

2N3904 ® SMALL SIGNAL NPN TRANSISTOR PRELIMINARY DATA Ordering Code Marking Package / Shipment 2N3904 2N3904 TO-92 / Bulk 2N3904-AP 2N3904 TO-92 / Ammopack SILICON EPITAXIAL PLANAR NPN TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE PNP COMPLEMENTARY TYPE IS 2N3906 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 VCBO Collector-Base Voltage (IE = 0) 60 V VCEO Collector-Emitter Voltage (IB = 0) 40 V VEBO Emitter-Base Voltage (IC = 0) 6 V IC Collector Current 200 mA P Total Dissipation at T = 25 oC 625 mW tot C o Tstg Storage Temperature -65 to 150