Databook.fxp 1/13/99 2:09 PM Page B-60 B-60 01/99 J304, J305 N-Channel Silicon Junction Field-Effect Transistor Absolute maximum ratings at TA = 25¡C ¥ Mixers ¥ Oscillators ¥ VHF/UHF Amplifiers Reverse Gate Source & Reverse Gate Drain Voltage Continuous Forward Gate Current Continuous Device Power Dissipation Power Derating J304 At 25°C free air temperature: Static Electrical Characteristics Min Gate Source Breakdown Voltage V(BR)GSS Gate Reverse Current IGSS Gate Source Cutoff Voltage VGS(OFF) Drain Saturation Current (Pulsed) IDSS Typ J305 Max – 30 Min Typ Process NJ26 Max Unit V IG = – 1µA, VDS = ØV – 100 pA VGS = – 20V, VDS = ØV – 30 – 100 – 30 V 10 mA 360 mW 3.27 mW/°C Test Conditions –2 –6 – 0.5 –3 V VDS = 15V, ID = 1 nA 5 15 1 8 mA VDS = 15V, VGS = ØV 4500 7500 3000 µS VDS = 15V, VGS = ØV f = 1 kHz µS VDS = 15V, VGS = ØV f = 100 MHz µS VDS = 15V, VGS = ØV f = 400 MHz µS VDS = 15V, VGS = ØV f = 1 kHz Dynamic Electrical Characteristics Common Source Forward Transconductance g fs Common Source Output Conductance g os Common Source Input Capacitance Ciss 3 3 pF VDS = 15V, VGS = ØV f = 1 MHz Common Source Reverse Transfer Capacitance Crss 0.85 0.85 pF VDS = 15V, VGS = ØV f = 1 MHz Common Source Output Capacitance Coss 1 1 pF VDS = 15V, VGS = ØV f = 1 MHz Common Source Output Conductance gos 60 60 Common Source Output Susceptance bos 3600 Common Source Input Conductance gis 800 Common Source Input Susceptance bis Common Source Power Gain Gps Noise Figure NF 3000 4200 50 50 80 800 80 2000 800 80 2000 µS VDS = 15V, VGS = ØV f = 100 MHz µS VDS = 15V, VGS = ØV f = 400 MHz µS VDS = 15V, VGS = ØV f = 100 MHz µS VDS = 15V, VGS = ØV f = 400 MHz µS VDS = 15V, VGS = ØV f = 100 MHz µS VDS = 15V, VGS = ØV f = 400 MHz µS VDS = 15V, VGS = ØV f = 100 MHz 7500 µS VDS = 15V, VGS = ØV f = 400 MHz 20 dB VDS = 15V, ID = 5 mA f = 100 MHz 11 dB VDS = 15V, ID = 5 mA f = 400 MHz 1.7 dB dB VDS = 15V, ID = 5 mA RG = 1 Ω f = 100 MHz 3.8 TOÐ226AA Package Surface Mount Dimensions in Inches (mm) SMPJ304, SMPJ305 f = 400 MHz Pin Configuration 1 Drain, 2 Source, 3 Gate 1000 N. Shiloh Road, Garland, TX 75042 (972) 487-1287 FAX (972) 276-3375 www.interfet.com