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BFP81 Datasheet, PDF (3/10 Pages) Vishay Siliconix – Silicon NPN Planar RF Transistor
BFP81
Vishay Telefunken
Common Emitter S–Parameters
Z0 = 50 W, Tamb = 25_C, unless otherwise specified
VCE/V IC/mA
1
2
2
3
5
f/MHz
100
300
500
800
1000
1200
1500
1800
2000
2200
2500
2800
3000
100
300
500
800
1000
1200
1500
1800
2000
2200
2500
2800
3000
100
300
500
800
1000
1200
1500
1800
2000
2200
2500
2800
3000
S11
LIN
MAG
ANG
deg
0.882 –26.99
0.702 –72.30
0.579 –104.7
0.496 –139.4
0.474 –156.9
0.480 –171.4
0.495 170.3
0.518 155.6
0,.541 147.6
0.567 138.6
0.599 128.1
0.633 118.4
0.649 113.2
0.894 –23.2
0.729 –62.8
0.590 –93.5
0.482 –128.6
0.445 –146.8
0.438 –163.0
0.448 176.6
0.467 160.8
0.489 150.7
0.514 141.4
0.541 130.2
0.577 120.0
0.599 114.6
0.758 –35.5
0.514 –87.7
0.396 –120.7
0.336 –154.3
0.322 –171.3
0.328 175.2
0.347 160.0
0.376 146.7
0.394 139.8
0.415 132.2
0.450 124.1
0.484 115.7
0.504 111.2
S21
LIN
MAG
ANG
deg
6.43 158.5
5.00 127.5
3.81 107.8
2.74 88.1
2.31 78.5
2.02 69.6
1.70 57.4
1.49 47.3
1.38 40.8
1.29 34.7
1.17 26.1
1.08 18.2
1.03 13.9
6.52 160.8
5.27 132.3
4.16 112.8
3.04 93.4
2.58 83.6
2.24 74.9
1.90 63.0
1.64 53.3
1.52 46.9
1.43 41.0
1.30 32.0
1.19 24.5
1.13 20.1
13.77 152.1
9.17 118.5
6.36 101.2
4.30 85.4
3.54 77.4
3.03 70.2
2.51 60.3
2.15 51.8
1.98 46.0
1.85 40.8
1.68 32.6
1.54 25.4
1.46 20.9
S12
LIN
MAG
ANG
deg
0.040 73.0
0.093 50.4
0.115 39.3
0.130 32.5
0.135 31.3
0.140 31.1
0.148 32.9
0.158 35.7
0.169 37.8
0.182 39.6
0.207 38.5
0.230 39.8
0.249 39.0
0.027 75.5
0.066 55.0
0.084 44.3
0.097 37.9
0.101 37.2
0.106 37.9
0.113 40.7
0.123 44.7
0.133 47.3
0.146 50.0
0.168 48.6
0.190 51.1
0.208 50.6
0.025 70.5
0.051 53.8
0.064 51.0
0.082 52.5
0.094 53.9
0.108 54.4
0.129 54.7
0.150 54.1
0.166 53.3
0.182 52.3
0.206 48.4
0.227 47.3
0.244 45.5
S22
LIN
MAG
ANG
deg
0.944 –13.1
0.763 –29.1
0.621 –35.6
0.515 –40.2
0.479 –43.0
0.451 –46.1
0.422 –52.1
0.399 –59.3
0.388 –64.9
0.378 –70.8
0.363 –80.8
0.359 –93.6
0.350 –102.5
0.960 –9.3
0.832 –21.1
0.719 –26.1
0.631 –30.1
0.601 –32.7
0.580 –35.3
0.555 –40.1
0.537 –45.7
0.529 –50.1
0.522 –54.5
0.509 –62.1
0.508 –71.7
0.492 –78.2
0.903 –16.0
0.660 –28.3
0.540 –29.0
0.477 –29.0
0.460 –30.2
0.450 –32.4
0.432 –37.0
0.415 –42.5
0.407 –46.8
0.399 –51.1
0.381 –58.9
0.371 –68.4
0.354 –74.9
Document Number 85018
Rev. 3, 20-Jan-99
www.vishay.de • FaxBack +1-408-970-5600
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