View stpsa42 datasheet:

STPSA42 ® SMALL SIGNAL NPN TRANSISTOR PRELIMINARY DATA Ordering Code Marking Package / Shipment STPSA42 PSA42 TO-92 / Bulk STPSA42-AP PSA42 TO-92 / Ammopack SILICON EPITAXIAL PLANAR NPN HIGH VOLTAGE TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE PNP COMPLEMENTARY TYPE IS STPSA92 TO-92 TO-92 APPLICATIONS Bulk Ammopack VIDEO AMPLIFIER CIRCUITS (RGB CATHODE CURRENT CONTROL) TELEPHONE WIRELINE INTERFACE (HOOK SWITCHES, DIALER CIRCUITS) INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCBO Collector-Base Voltage (IE = 0) 300 V VCEO Collector-Emitter Voltage (IB = 0) 300 V V Emitter-Base Voltage (I = 0) 5 V EBO C I Collector Current 0.5 A C I Collector Peak Current (t < 5 ms) 0.6 A CM p Ptot Total Dissipatio