2N3819G Datasheet, PDF (2/8 Pages) ON Semiconductor – JFET VHF/UHF Amplifier

2N3819
ELECTRICAL CHARACTERISTICS (T_A = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
OFF CHARACTERISTICS
Gate–Source Breakdown Voltage
(I_G = 1.0 µAdc, V_DS = 0)
Gate–Source
(V_DS = 15 Vdc, I_D = 200 µAdc)
Gate–Source Cutoff Voltage
(V_DS = 15 Vdc, I_D = 10 nAdc)
Gate Reverse Current
(V_GS = 15 Vdc, V_DS = 0)
ON CHARACTERISTICS
V_(BR)GSS
25
V_GS
0.5
V_GS(off)
–
I_GSS
–
–
–
Vdc
–
7.5
Vdc
–
–ā8.0
Vdc
–
210 nAdc
Zero–Gate–Voltage Drain Current
(V_DS = 15 Vdc, V_GS = 0)
SMALL–SIGNAL CHARACTERISTICS
Forward Transfer Admittance
(V_DS = 15 Vdc, V_GS = 0, f = 1.0 kHz)
Output Admittance
(V_DS = 15 Vdc, V_GS = 0, f = 1.0 kHz)
Forward Transfer Admittance
(V_DS = 15 Vdc, V_GS = 0, f = 200 MHz)
Reverse Transfer Admittance
(V_DS = 15 Vdc, V_GS = 0, f = 200 MHz)
Input Capacitance
(V_DS = 20 Vdc, –V_GS = 1.0 Vdc)
Reverse Transfer Capacitance
(V_DS = 20 Vdc, –V_GS = 1.0 Vdc, f = 1.0 MHz)
Output Capacitance
(V_DS = 20 Vdc, –V_GS = 1.0 Vdc, f = 1.0 MHz)
Cut–off Frequency (Note 1)
(V_DS = 15 Vdc, V_GS = 0)
1. The frequency at which g_fs is 0.7 of its value at 1 kHz.
I_DSS
Y_fs
Y_os
Y_fs
Y_rs
C_iss
C_rss
C_oss
F_(Yfs)
2.0
–
20
mAdc
3.0
–
6.5 mmhos
–
40
–
mmhos
–
5.6
–
mmhos
–
1.0
–
mmhos
–
3.0
–
pF
–
0.7
–
pF
–
0.9
–
pF
–
700
–
MHz
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