J308

01/99 ¥ Mixers ¥ Oscillators ¥ VHF/UHF Amplifiers B-61 J308, J309 N-Channel Silicon Junction Field-Effect Transistor Absolute maximum ratings at TA = 25¡C Reverse Gate Source & Reverse Gate Drain Voltage Continuous Forward Gate Current Continuous Device Power Dissipation Power Derating – 25 V 10 mA 360 mW 3.27 mW/°C At 25°C free air temperature: Static Electrical Characteristics Gate Source Breakdown Voltage V(BR)GSS Gate Reverse Current IGSS Gate Source Cutoff Voltage Gate Source Forward Voltage Drain Saturation Current (Pulsed) VGS(OFF) VGS(F) IDSS Dynamic Electrical Characteristics Common Source Forward Transconductance Common Source Output Conductance Common Gate Forward Transconductance Common Gate Output Transconductance Gate Drain Capacitance Gate Source Capacitance Equivalent Short Circuit Input Noise Voltage g fs g os g fg g og Cdg Cgs e¯N Common Source Forward Transconductance Common Gate Input Conductance Common Source Input Conductance Common Source Out...