View 2sc5458 datasheet:

2SC5458 TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SC5458 Industrial Applications Switching Regulator and High Voltage Switching Unit: mm Applications DC-DC Converter Applications DC-AC Inverter Applications • Excellent switching times: tr = 0.5 µs (max) t = 0.3 µs (max) (I = 0.4 A) f C • High collector breakdown voltage: V = 400 V CEO Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collector-base voltage VCBO 600 V Collector-emitter voltage VCEO 400 V Emitter-base voltage VEBO 7 V DC IC 0.8 Collector current A Pulse ICP 1.5 JEDEC ? Base current IB 0.5 A JEITA ? Ta = 25°C 1.0 Collector power PC W dissipation TOSHIBA 2-7B1A Tc = 25°C 10 Junction temperature Tj 150 °C Weight: 0.36 g (typ.) Storage temperature ra