NTE312
NChannel Silicon Junction Field Effect Transistor
Description: The NTE312 is a field effect transistor designed for VHF amplifier and mixer applications. The NTE312 comes in a TO92 package. Features: D High Power Gain: 10dB Min at 400MHz D High Transconductance: 4000 mho Min at 400MHz D Low Crss: 1pF Max D High (Yfs) / Ciss Ratio (HighFrequency FigureofMerit) D Drain and Gate Leads Separated for High Maximum Stable Gain D CrossModulation Minimized by SquareLaw Transfer Characteristic D For Use in VHF Amplifiers in FM, TV, and Mobile Communications Equipment Absolute Maximum Ratings: (TA = +25C unless otherwise specified) DrainGate Voltage, VDG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V GateSource Voltage, VGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Gate Current, IG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA Total Device Dissipation (TA = +25C ), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360mW Derate Above +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.88mW/C Total Device Dissipation (TC = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Derate Above +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0mW/C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to +150C Lead Temperature, During Soldering (1/16 Inch from Case for 10sec), TL . . . . . . . . . . . . . . . +260C
Electrical Characteristics: (TA = +25C unless otherwise specified)
Parameter OFF Characteristics GateSource Breakdown Voltage Gate Reverse Current Gate 1 Leakage Current GateSource Cutoff Voltage ON Characteristics ZeroGate Voltage Drain Current SmallSignal Characteristics Forward Transfer Admittance Input Admittance |yfs| Re(yis) VDS = 15V, VGS = 0, f = 1kHz 100MHz VDS = 15V, VGS = 0 400MHz Output Admittance Output Conductance |yos| Re(yos) VDS = 15V, VGS = 0, f = 1kHz 100MHz VDS = 15V, VGS = 0 400MHz Forward Transconductance Input Capacitance Reverse Transfer Capacitance Input Susceptance Re(yfs) Ciss Crss IM(Yis) VDS = 15V, VGS = 0, f = 400MHz VDS = 15V, VGS = 0, f = 1.0MHz VDS = 15V, VGS = 0, f = 1.0MHz 100MHz VDS = 15V, VGS = 0 400MHz Functional Characteristics Noise Figure NF 100MHz VDS = 15V, ID = 5mA, RiG = 1k 400MHz 100MHz VDS = 15V, ID = 5mA, RiG = 1k 400MHz 100MHz VDS = 15V, VGS = 0 400MHz 18 10 2.0 4.0 1000 4000 dB dB dB dB mhos mhos 4500 4000 7500 100 1000 50 75 100 4.5 1.0 3.0 12.0 mhos mhos mhos mhos mhos mhos mhos pF pF mmho mmho IDSS VDS = 15V, VGS = 0, Note 1 5.0 15 mA V(BR)GSS IGSS IG1SS VGS(off) IG = 1.0A, VDS = 0 VGS = 20V, VDS = 0 VG1S = 20V, VDS = 0, TA = +100C VDS = 15V, ID = 10mA 30 1.0 1.0 0.5 6.0 V nA A V Symbol Test Conditions Min Typ Max Unit
Common Source Power Gain
Gps
Output Susceptance
IM(Yos)
Note 1. tp = 100ms, Duty Cycle = 10%.
.135 (3.45) Min
.210 (5.33) Max
Seating Plane
.500 (12.7) Min
.021 (.445) Dia Max
G S D .100 (2.54) .050 (1.27)
.165 (4.2) Max
.105 (2.67) Max .105 (2.67) Max .205 (5.2) Max
NOTE: Drain and Source are interchangeable.
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