VCBO collector-base voltage open emitter BF420 - 300 V VCEO collector-emitter voltage open base BF420 - 300 V ICM peak collector current - 100 mA Ptot total power dissipation Tamb £ 25 °C - 830 mW hFE DC current gain IC = 25 mA; VCE = 20 V 50 - Cre feedback capacitance IC = ic = 0; VCE = 30 V; f = 1 MHz - 1.6 pF fT transition frequency IC = 10 mA; VCE = 10 V; f = 100 MHz 60 - MHz