View stzta42 datasheet:

STZTA42 ® SMALL SIGNAL NPN TRANSISTOR PRELIMINARY DATA Type Marking STZTA42 ZTA42 SILICON EPITAXIAL PLANAR NPN HIGH VOLTAGE TRANSISTOR SOT-223 PLASTIC PACKAGE FOR 2 SURFACE MOUNTING CIRCUITS TAPE AND REEL PACKING 3 THE PNP COMPLEMENTARY TYPE IS 2 STZTA92 1 APPLICATIONS SOT-223 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) 6 V EBO C I Collector Current 0.5 A C ICM Collector Peak Current 0.6 A Ptot Total Dissipation at TC = 25 oC 1.5 W o Tstg Storage Temperature -65 to 150 C o Tj Max