2N3819G Datasheet, PDF (6/8 Pages) ON Semiconductor – JFET VHF/UHF Amplifier

2N3819
COMMON GATE CHARACTERISTICS
S–PARAMETERS
(V_DS = 15 Vdc, T_channel = 25°C, Data Points in MHz)
30°
20° 10°
0° 350° 340°
330°
30°
20° 10°
0° 350° 340°
330°
40°
0.7
320°
40°
0.04
32
I_D = 0.25 I_DSS
100 _{200 300}
0.6
400
0.03
50°
60°
70°
100
0.5
200
300
400
500
600
700
500
0.4
I_D = I_DSS
600
800
900
310°
300°
290°
50°
60°
70°
0.02
0.01
31
30
29
700
80°
0.3
800
280°
80°
0.0
28
90°
900
270°
90°
100
27
500
100°
260°
100°
600
600 I_D = 0.25 I_DSS
26
I_D = I_DSS
110°
250°
110°
700
700 _0.01
25
800
120°
240°
120°
800
24
0.02
900
130°
230°
130°
23
900
0.03
140°
220°
150° 160° 170° 180° 190° 200° 210°
Figure 13. S_11g
30°
20° 10°
0° 350° 340°
330°
40°
0.5
320°
100
0.4
50°
100
I_D = I_DSS
310°
0.3
60°
300°
70°
0.2
I_D = 0.25 I_DSS
290°
80°
280°
0.1
900
90°
270°
900
100°
260°
110°
250°
120°
240°
140°
0.04
22
150° 160° 170° 180° 190° 200° 210°
Figure 14. S_12g
30°
20° 10°
0° 350° 340°
330°
1.5
300
40°
1.0 ₂₀₀
100
500
400
600
700
32
0.9
800 900
50°
I_D = I_DSS, 0.25 I_DSS
31
0.8
60°
30
70°
0.7
29
80°
28
0.6
90°
27
100°
26
110°
25
120°
24
130°
230°
130°
23
140°
220°
150° 160° 170° 180° 190° 200° 210°
Figure 15. S_21g
140°
22
150° 160° 170° 180° 190° 200° 210°
Figure 16. S_22g
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