2SC4228 Datasheet, PDF (6/7 Pages) NEC – HIGH FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD

INCHANGE Semiconductor
isc Silicon NPN RF Transistor
S-PARAMETER
VCE = 3 V, IC = 3 mA, ZO = 50Ω
Freque.
S₁₁
MHz
MAG
ANG
100
0.943
–13.4
200
0.868
–26.6
300
0.815
–37.7
400
0.717
–48.9
500
0.655
–56.8
600
0.577
–65.5
700
0.518
–71.2
800
0.468
–78.1
900
0.420
–83.7
1000
0.380
–90.6
1100
0.344
–94.8
1200
0.321
–101.6
1300
0.291
–105.9
1400
0.273
–111.7
1500
0.250
–117.2
1600
0.228
–122.4
1700
0.219
–128.5
1800
0.199
–135.3
1900
0.193
–139.6
2000
0.182
–146.9
S₂₁
MAG
ANG
9.384
165.9
8.668
152.8
8.165
142.9
7.279
132.9
6.780
125.5
6.061
118.0
5.504
112.8
5.074
106.7
4.632
102.8
4.340
98.3
3.951
94.8
3.717
90.5
3.485
87.6
3.306
84.3
3.134
80.7
2.959
79.0
2.819
76.0
2.699
73.9
2.572
71.9
2.474
68.3
isc RF Product Specification
2SC4228
S₁₂
MAG
ANG
0.020
84.1
0.038
77.2
0.051
67.9
0.062
63.9
0.075
63.9
0.084
60.0
0.091
59.7
0.098
57.0
0.102
59.0
0.105
56.6
0.112
57.8
0.121
59.0
0.128
58.7
0.135
59.8
0.140
58.0
0.145
59.5
0.153
59.0
0.161
58.4
0.163
60.3
0.175
59.8
S₂₂
MAG
ANG
0.969
–7.7
0.936
–13.8
0.876
–20.9
0.804
–23.5
0.764
–26.7
0.708
–29.7
0.685
–31.1
0.639
–32.0
0.611
–32.8
0.592
–35.0
0.579
–34.1
0.551
–35.0
0.532
–35.9
0.535
–36.6
0.511
–37.5
0.516
–37.7
0.504
–39.0
0.493
–39.9
0.489
–41.4
0.482
–41.4
isc website：www.iscsemi.cn
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