BFQ81 Vishay, BFQ81 Datasheet - Page 3

• Manufacturer Part Number: BFQ81
• Description: Silicon Npn Planar Rf Transistor
• Manufacturer: Vishay

Common Emitter S-Parameters
Z
Document Number 85023
Rev. 1.5, 28-Apr-05
0
= 50 Ω, T
V
CE
1
3
3
6
/V
amb
I
C
= 25 °C, unless otherwise specified
/mA
2
2
5
2
f/MHz
1000
1200
1500
1800
2000
2200
2500
2800
3000
1000
1200
1500
1800
2000
2200
2500
2800
3000
1000
1200
1500
1800
2000
2200
2500
2800
3000
100
300
500
800
100
300
500
800
100
300
500
800
100
0.868
0.681
0.565
0.491
0.478
0.472
0.480
0.491
0.506
0.523
0.554
0.573
0.600
0.882
0.709
0.577
0.477
0.450
0.432
0.433
0.445
0.459
0.471
0.501
0.521
0.543
0.741
0.497
0.386
0.332
0.324
0.323
0.333
0.352
0.367
0.381
0.414
0.434
0.459
0.887
MAG
LIN
deg
S11
-109.5
-142.9
-157.7
-171.0
-130.9
-147.3
-162.0
-122.9
-153.1
-166.2
-178.8
173.1
159.5
151.7
144.4
133.5
123.9
117.4
179.7
164.6
156.0
147.7
136.4
126.5
119.1
167.3
155.1
147.8
140.3
131.2
123.0
116.9
ANG
-29.7
-77.6
-24.8
-66.7
-97.2
-38.2
-91.6
-23.2
13.66
MAG
6.78
5.08
3.77
2.67
2.25
1.94
1.64
1.42
1.32
1.23
1.13
1.04
0.97
6.74
5.32
4.09
2.96
2.50
2.16
1.83
1.58
1.45
1.36
1.24
1.14
1.07
8.67
5.90
3.94
3.26
2.77
2.30
1.98
1.82
1.69
1.54
1.41
1.32
6.76
deg
LIN
S21
157.2
125.2
106.3
160.3
130.7
111.8
150.6
116.8
100.7
161.2
ANG
87.8
79.1
71.1
60.8
51.7
46.8
42.1
35.3
29.4
26.3
93.2
84.6
76.5
66.4
57.5
52.6
48.1
41.2
35.1
32.2
86.1
79.4
72.9
64.6
56.8
52.5
48.5
42.3
36.4
33.2
0.045
0.098
0.120
0.136
0.144
0.152
0.168
0.189
0.208
0.228
0.262
0.294
0.315
0.032
0.073
0.092
0.106
0.113
0.120
0.134
0.153
0.169
0.188
0.220
0.252
0.275
0.028
0.056
0.072
0.095
0.112
0.130
0.156
0.186
0.206
0.227
0.256
0.284
0.303
0.026
MAG
LIN
deg
S12
Vishay Semiconductors
ANG
72.3
50.7
42.0
39.4
40.4
42.6
46.6
50.6
52.6
53.8
54.3
53.7
53.0
74.9
55.2
46.8
44.4
46.0
48.6
53.8
58.9
61.4
63.3
64.8
65.0
64.5
70.6
56.0
55.6
59.4
61.5
62.6
63.8
63.9
63.4
62.8
61.4
59.8
58.8
76.4
0.939
0.720
0.576
0.477
0.447
0.424
0.399
0.381
0.368
0.355
0.340
0.316
0.305
0.958
0.798
0.680
0.593
0.569
0.551
0.531
0.519
0.511
0.502
0.495
0.478
0.471
0.890
0.619
0.504
0.451
0.439
0.433
0.422
0.413
0.406
0.398
0.389
0.372
0.364
0.966
MAG
deg
LIN
BFQ81
www.vishay.com
S22
-14.2
-30.3
-35.3
-37.3
-38.7
-40.8
-45.0
-50.4
-54.5
-59.0
-67.3
-76.1
-81.9
-10.0
-22.2
-26.0
-27.9
-29.2
-30.9
-34.4
-38.5
-41.8
-45.2
-51.5
-58.3
-63.1
-17.2
-28.6
-27.5
-25.3
-25.4
-26.6
-29.7
-33.7
-36.6
-39.8
-45.7
-52.0
-56.7
ANG
-8.3
3