2SC4791 Datasheet, PDF (7/12 Pages) Hitachi Semiconductor – Silicon NPN Epitaxial

2SC4791
S Parameter (V_CE = 5 V, I_C = 5 mA, Z_O = 50 Ω, Emitter Common)
Freq.
(MHz)
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
S11
MAG.
0.859
0.790
0.700
0.618
0.543
0.477
0.421
0.369
0.331
0.287
0.226
0.220
0.200
0.179
0.159
0.142
0.126
0.117
0.109
0.102
ANG.
–15.9
–30.6
–44.0
–54.8
–64.7
–73.3
–80.1
–86.3
–92.8
–99.4
–104.8
–110.7
–110.7
–125.0
–131.7
–138.0
–147.6
–154.1
–166.9
179.8
S21
MAG.
13.192
12.225
10.967
9.802
8.686
7.761
6.955
6.316
5.748
5.275
4.869
4.498
4.169
3.926
3.698
3.493
3.311
3.143
3.008
2.864
ANG.
165.5
151.9
139.9
130.2
122.4
116.0
110.2
105.5
101.0
97.6
94.1
90.6
88.2
85.4
83.0
80.5
78.1
76.1
74.0
71.9
S12
MAG.
0.016
0.031
0.043
0.053
0.061
0.068
0.074
0.080
0.086
0.091
0.097
0.102
0.107
0.113
0.119
0.125
0.130
0.136
0.142
0.147
ANG.
82.3
73.9
68.2
64.0
61.4
59.8
58.9
58.7
58.1
57.9
57.9
58.1
58.4
58.2
58.2
58.4
58.5
58.2
58.0
57.9
S22
MAG.
0.974
0.914
0.841
0.771
0.710
0.660
0.619
0.584
0.557
0.535
0.517
0.502
0.492
0.479
0.471
0.463
0.456
0.450
0.445
0.440
ANG.
–9.3
–17.5
–24.2
–29.2
–32.5
–34.8
–36.7
–38.2
–39.3
–40.3
–41.2
–42.1
–43.1
–44.2
–44.9
–46.0
–47.2
–48.2
–49.3
–50.4
7