J304 INTERFET | Alldatasheet
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J304, J305 N-Channel Silicon Junction Field-Effect Transistor ¥ Mixers ¥ Oscillators ¥ VHF/UHF Amplifiers Absolute maximum ratings at TA = 25¡C Reverse Gate Source & Reverse Gate Drain Voltage – 30 V Continuous Forward Gate Current 10 mA Continuous Device Power Dissipation 360 mW Power Derating 3.27 mW/°C TOÐ226AA Package Dimensions in Inches (mm) Pin Configuration
1 Drain, 2 Source, 3 Gate
SMPJ304, SMPJ305 At 25°C free air temperature: J304 J305 Process NJ26 Static Electrical Characteristics Min Typ Max Min Typ Max Unit Test Conditions Gate Source Breakdown Voltage V (BR)GSS – 30 – 30 V I G = – 1µA, VDS = ØV Gate Reverse Current I GSS – 100 – 100 pA V GS = – 20V, VDS = ØV Gate Source Cutoff Voltage V GS(OFF) – 2 – 6 – 0.5 – 3 V V DS = 15V, ID = 1 nA Drain Saturation Current (Pulsed) I DSS 51 5 1 8 m A V DS = 15V, VGS = ØV Dynamic Electrical Characteristics Common Source Forward 4500 7500 3000 µS V DS = 15V, VGS = ØV f = 1 kHz gfs 3000 µS V DS = 15V, VGS = ØV f = 100 MHzTransconductance 4200 µS V DS = 15V, VGS = ØV f = 400 MHz Common Source Output Conductance g os 50 50 µS V DS = 15V, VGS = ØV f = 1 kHz Common Source Input Capacitance C iss 33 p F V DS = 15V, VGS = ØV f = 1 MHz Common Source Reverse Crss 0.85 0.85 pF V DS = 15V, VGS = ØV f = 1 MHzTransfer Capacitance Common Source Output Capacitance C oss 11 p F V DS = 15V, VGS = ØV f = 1 MHz Common Source Output Conductance g os 60 60 µS V DS = 15V, VGS = ØV f = 100 MHz 80 µS V DS = 15V, VGS = ØV f = 400 MHz Common Source Output Susceptance b os 800 800 µS V DS = 15V, VGS = ØV f = 100 MHz 3600 µS V DS = 15V, VGS = ØV f = 400 MHz Common Source Input Conductance g is 80 80 µS V DS = 15V, VGS = ØV f = 100 MHz 800 µS V DS = 15V, VGS = ØV f = 400 MHz Common Source Input Susceptance b is 2000 2000 µS V DS = 15V, VGS = ØV f = 100 MHz 7500 µS V DS = 15V, VGS = ØV f = 400 MHz Common Source Power Gain G ps 20 dB V DS = 15V, ID = 5 mA f = 100 MHz 11 dB V DS = 15V, ID = 5 mA f = 400 MHz Noise Figure NF 1.7 dB VDS = 15V, ID = 5 mA f = 100 MHz 3.8 dB RG = 1 Ω f = 400 MHz 1000 N. Shiloh Road, Garland, TX 75042 (972) 487-1287 FAX (972) 276-3375 www.interfet.com Databook.fxp 1/13/99 2:09 PM Page B-60