2SC4791 查看數據表（PDF） - Hitachi -> Renesas Electronics
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2SC4791 Datasheet PDF : 12 Pages
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2SC4791
S Parameter (VCE = 1 V, IC = 0.5 mA, ZO = 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.
0.983
0.976
0.961
0.938
0.920
0.903
0.868
0.836
0.819
0.780
0.749
0.713
0.687
0.659
0.629
0.601
0.578
0.656
0.532
0.508
ANG.
–6.6
–13.1
–19.6
–26.2
–32.5
–38.6
–44.6
–50.4
–56.1
–61.6
–66.9
–71.7
–77.0
–82.2
–86.9
–91.2
–96.7
–101.0
–106.3
–111.4
S21
MAG.
1.757
1.723
1.741
1.734
1.666
1.629
1.584
1.564
1.520
1.484
1.434
1.369
1.322
1.317
1.282
1.248
1.215
1.187
1.155
1.124
ANG.
174.0
167.3
160.2
154.0
147.6
142.6
136.2
130.6
125.3
120.3
115.3
110.4
107.2
102.3
98.5
94.6
91.0
87.5
84.4
81.0
S12
MAG.
0.023
0.047
0.071
0.093
0.093
0.133
0.151
0.166
0.180
0.193
0.204
0.213
0.221
0.229
0.234
0.239
0.243
0.248
0.249
0.251
ANG.
85.8
80.7
76.4
71.9
67.6
63.4
59.9
56.2
52.8
49.5
46.7
44.0
41.4
38.9
36.7
34.6
32.4
30.4
28.9
27.3
S22
MAG.
0.995
0.990
0.980
0.966
0.950
0.932
0.913
0.891
0.869
0.849
0.828
0.810
0.794
0.774
0.757
0.741
0.726
0.713
0.699
0.686
ANG.
–4.1
–8.2
–12.3
–16.4
–20.1
–23.9
–27.3
–30.6
–33.8
–36.8
–39.6
–42.1
–44.8
–47.3
–49.7
–51.9
–54.2
–56.3
–58.4
–60.5
9
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