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U309 Datasheet(PDF) 1 Page - InterFET Corporation |
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U309 Datasheet(HTML) 1 Page - InterFET Corporation |
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1 / 1 page  B-66 01/99 U308, U309 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 – 25 V Continuous Forward Gate Current 20 mA Continuous Device Power Dissipation 500 mW Power Derating 4 mw/°C TOÐ52 Package Dimensions in Inches (mm) Pin Configuration 1 Source, 2 Drain, 3 Gate & Case Surface Mount SMPJ308/J309 At 25°C free air temperature: U308 U309 Process NJ72 Static Electrical Characteristics Min Typ Max Min Typ Max Unit Test Conditions Gate Source Breakdown Voltage V(BR)GSS – 25 – 25 V VGS = – 1µA, VDS = ØV Gate Reverse Current IGSS – 150 – 150 pA VGS = – 15V, VDS = ØV – 150 – 150 nA VGS = – 15V, VDS = ØV TA = +125°C Gate Source Cutoff Voltage VGS(OFF) – 1– 6 – 1– 4 V VDS = 10V, ID = 1 nA Gate Source Forward Voltage VGS(F) 11 V VDS = ØV, IG = 10 mA Drain Saturation Current (Pulsed) IDSS 12 60 12 30 mA VDS = 10V, VGS = ØV Dynamic Electrical Characteristics Common Gate Forward 10 17 10 17 mS VDS = 10V, ID = 10 mA f = 1 kHz Gfs 15 15 mS VDS = 10V, ID = 10 mA f = 105 MHz Transconductance 14 14 mS VDS = 10V, ID = 10 mA f = 450 MHz 250 250 µS VDS = 10V, ID = 10 mA f = 1 kHz Common Gate Output Conductance Gog 0.18 0.18 µS VDS = 10V, ID = 10 mA f = 105 MHz 0.32 0.32 µS VDS = 10V, ID = 10 mA f = 450 MHz Drain Gate Capacitance Cdg 2.5 2.5 pF VDS = 10V, VGS = – 10V f = 1 MHz Gate Source Capacitance Cgs 55 pF VDS = 10V, VGS = – 10V f = 1 MHz Equivalent Short Circuit ¯eN 10 10 nV/ √Hz VDS = 10V, ID = 10 mA f = 100 kHz Input Noise Voltage Common Gate Power Gain Gpg 14 16 14 16 dB VDS = 10V, ID = 10 mA f = 105 MHz 10 11 10 11 dB VDS = 10V, ID = 10 mA f = 450 MHz Noise Figure NF 1.5 2 1.5 2 dB VDS = 10V, ID = 10 mA f = 105 MHz 2.7 3.5 2.7 3.5 dB VDS = 10V, ID = 10 mA f = 450 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-66 |
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