pzta92.pdf datasheet:

SEMICONDUCTOR PZTA92TECHNICAL DATA EPITAXIAL PLANAR PNP TRANSISTORHIGH VOLTAGE APPLICATION. ATELEPHONE APPLICATION.HL2FEATURESComplementary to PZTA42.KE B1 3JMAXIMUM RATING (Ta=25 )GF FCHARACTERISTIC SYMBOL RATING UNITVCBO -300 VCollector-Base VoltageDIM MILLIMETERS1 2 3_A 6.5 + 0.2VCEO -300 VCollector-Emitter VoltageC_B 3.5 + 0.2C 1.8 MAXVEBO -5.0 VEmitter-Base VoltageDD 0.7+0.15/-0.1_+E 7 0.3IC -500 mACollector Current F 2.3 TYPG 0.26+0.09/-0.02IE 1. BASEEmitter Current 500 mAH 3.0+0.15/-0.12. COLLECTOR (HEAT SINK)_J 1.75 + 0.25PC *Collector Power Dissipation 1 W3. EMITTERK 0.1 MAXL 10 MAXTjJunction Temperature 150Tstg -55 150Storage Temperature SOT-223* Package Mounted On FR-4 PCB 36 18 1.5mm. :mountina pad for the collector lead min.6cm2MarkingType NamePZTA92