BFR91 Datasheet, PDF (3/5 Pages) Vishay Siliconix – Silicon NPN Planar RF Transistor

BFR91
FUNCTIONAL
Symbol
Test Conditions
NF
GNF
|S₂₁|²
MSG
G
U max
Noise Figure
(IC = 2.0 mAdc, VCE = 5.0 Vdc, f = 0.5 GHz)
(IC = 2.0 mAdc, VCE = 5.0 Vdc, f = 1.0 GHz)
Power Gain at Optimum Noise Figure
(IC = 2.0 mAdc, VCE = 5.0 Vdc, f = 0.5 GHz)
(IC = 2.0 mAdc, VCE = 5.0 Vdc, f = 1.0 GHz)
Insertion Gain
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 0.5 GHz)
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 1.0 GHz)
Maximum Stable Gain
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 0.5 GHz)
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 1.0 GHz)
Maximum Unilateral Gain (1)
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 0.5 GHz)
(IC = 30 mAdc, VCE = 5.0 Vdc, f = 1.0 GHz)
Value
Min.
Typ.
Max.
Unit
-
1.9
-
dB
2.5
-
11
-
dB
8.0
14.5
15.5
-
dB
10.2
-
18.6
-
dB
12.9
-
16.5
-
dB
10.9
Table 1. Common Emitter S-Parameters, @ VCE = 5.0 V, IC = 30 mA
f
(MHz)
100
200
300
500
700
800
1000
1500
S11
|S11|
0.258
0.290
0.298
0.305
0.302
0.304
0.304
0.256
∠φ
-115
-149
-164
-179
170
166
158
134
S21
|S21|
25.77
14.66
10.05
6.18
4.5
3.98
3.24
2.3
∠φ
123
103
94
84
77
73
67
54
S12
|S12|
0.021
0.038
0.054
0.085
0.117
0.133
0.166
0.24
∠φ
76
74
75
75
73
72
70
65
S22
|S22|
0.536
0.384
0.311
0.264
0.256
0.257
0.251
0.263
∠φ
-33
-43
-45
-49
-52
-54
-57
-69
MSC1308.PDF 10-25-99