2sc6127.pdf datasheet:

2SC6127 TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SC6127 High Voltage Switching Applications Unit: mmHigh Voltage Amplifier Applications High voltage: VCEO = 800 V Absolute Maximum Ratings (Tc = 25C) Characteristics Symbol Rating UnitCollector-base voltage VCBO 800 VCollector-emitter voltage VCEO 800 VEmitter-base voltage VEBO 5 VCollector current IC 50 mABase current IB 25 mATa = 25C 1.0 Collector power PC W dissipation Tc = 25C 10 Junction temperature Tj 150 CStorage temperature range Tstg -55 to 150 C JEDEC Note: Using continuously under heavy loads (e.g. the application of high JEITA temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the TOSHIBA 2-7J1Areliability significantly even if the operating conditions (i.e. Weight: 0.36 g