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2SC4957 Datasheet(PDF) 5 Page - NEC

Part No. 2SC4957
Description  HIGH FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR 4 PINS MINI MOLD
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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5
2SC4957
S-PARAMETER
(VCE = 3 V, IC = 5 mA, ZO = 50
Ω)
fS11
S21
S12
S22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.716
–31.0
12.446
150.0
.030
73.7
.918
–17.3
0.400
.553
–55.6
10.005
126.8
.053
65.2
.777
–28.8
0.600
.412
–74.5
8.004
110.6
.067
60.3
.659
–34.0
0.800
.315
–91.6
6.521
99.2
.084
56.2
.577
–38.0
1.000
.243
–109.4
5.457
89.4
.099
58.4
.526
–40.5
1.200
.190
–130.1
4.678
80.7
.106
53.6
.488
–44.5
1.400
.167
–152.1
4.099
74.1
.120
51.9
.447
–46.9
1.600
.161
–174.4
3.628
67.1
.133
49.3
.420
–51.2
1.800
.162
167.5
3.287
60.5
.146
48.0
.389
–55.1
2.000
.193
149.8
3.008
54.9
.157
46.3
.354
–59.2
2.200
.220
137.4
2.748
48.6
.169
44.9
.341
–63.9
2.400
.252
128.7
2.552
43.7
.185
39.6
.315
–69.2
2.600
.267
122.3
2.366
38.6
.201
40.2
.291
–71.6
2.800
.311
116.7
2.212
33.7
.211
37.0
.270
–76.9
3.000
.330
112.1
2.079
29.2
.228
35.6
.260
–88.5
(VCE = 3 V, IC = 10 mA, ZO = 50
Ω)
fS11
S21
S12
S22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.536
–42.2
17.753
139.3
.024
66.6
.840
–22.7
0.400
.349
–68.1
12.387
115.1
.041
67.9
.654
–31.7
0.600
.232
–88.4
9.189
100.7
.057
64.3
.547
–34.1
0.800
.165
–107.1
7.205
91.0
.071
60.3
.489
–35.7
1.000
.124
–130.9
5.913
82.8
.090
62.7
.451
–37.5
1.200
.106
–163.8
5.000
75.3
.103
61.1
.413
–41.4
1.400
.116
173.3
4.352
69.7
.122
58.4
.394
–43.4
1.600
.137
153.2
3.841
63.5
.138
54.9
.367
–47.4
1.800
.149
137.7
3.463
57.5
.145
54.6
.338
–51.0
2.000
.184
129.3
3.168
52.5
.170
51.2
.319
–55.9
2.200
.216
121.9
2.876
46.7
.184
48.0
.298
–63.7
2.400
.249
117.4
2.676
42.1
.191
46.4
.282
–67.7
2.600
.270
111.3
2.486
37.3
.208
42.9
.241
–71.9
2.800
.306
109.1
2.319
32.9
.221
39.2
.236
–76.7
3.000
.328
105.5
2.183
28.4
.238
36.7
.210
–89.3




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