NPN Silicon RF Transistor
BFQ 71
ESD: Electrostatic discharge sensitive device, observe handling precautions!
Maximum Ratings
Type
Ordering Code
(tape and reel)
Marking
Package
1)
Pin Configuration
BFQ 71
Q62702-F775
71
Cerec-X
1
2
3
B
E
C
4
E
Parameter
Symbol
Values
Unit
Collector-emitter voltage
V
CE0
15
V
Emitter-base voltage
V
EB0
2.5
Collector current
I
C
30
mA
Collector-base voltage
V
CB0
20
Base current
I
B
4
Junction temperature
T
j
175
C
Ambient temperature range
T
A
65 ... + 175
Total power dissipation,
T
S
103 C
3)
P
tot
300
mW
Storage temperature range
T
stg
65 ... + 175
Thermal Resistance
Junction - ambient
2)
R
th JA
320
K/W
Junction - soldering point
3)
R
th JS
240
Collector-emitter voltage,
V
BE
= 0
V
CES
20
1)
For detailed dimensions see chapter Package Outlines.
2)
Package mounted on alumina 15 mm
16.7 mm
0.7 mm.
3)
T
S
is measured on the collector lead at the soldering point to the pcb.
q
For broadband amplifiers up to 2 GHz and fast
non-saturated switches at collector currents from
1 mA to 20 mA.
q
Hermetically sealed ceramic package.
q
HiRel/Mil screening available.
q
CECC-type available: CECC 50002/260.
Electrical Characteristics
at
T
A
= 25 C, unless otherwise specified.
Unit
Values
Parameter
Symbol
min.
typ.
max.
DC Characteristics
V
Collector-emitter breakdown voltage
I
C
= 1 mA,
I
B
= 0
V
(BR)CE0
15
A
Emitter-base cutoff current
V
EB
= 2 V,
I
C
= 0
I
EB0
10
DC current gain
I
C
= 5 mA,
V
CE
= 6 V
I
C
= 20 mA,
V
CE
= 6 V
h
FE
40
40
90
100
250
nA
Collector-base cutoff current
V
CB
= 10 V,
I
E
= 0
I
CB0
50
V
Collector-emitter saturation voltage
I
C
= 30 mA,
I
B
= 3 mA
V
CEsat
0.16
0.4
Base-emitter voltage
I
C
= 5 mA,
V
CE
= 6 V
V
BE
0.78
BFQ 71
Electrical Characteristics
at
T
A
= 25 C, unless otherwise specified.
AC Characteristics
Unit
Values
Parameter
Symbol
min.
typ.
max.
Power gain
I
C
= 2 mA,
V
CE
= 6 V,
f
= 800 MHz,
Z
S
=
Z
Sopt
,
Z
L
=
Z
Lopt
G
pe
15
GHz
Transition frequency
I
C
= 5 mA,
V
CE
= 6 V,
f
= 200 MHz
I
C
= 20 mA,
V
CE
= 6 V,
f
= 200 MHz
f
T
4
4.2
5.2
Collector-emitter capacitance
V
CE
= 6 V,
V
BE
=
v
be
= 0,
f
= 1 MHz
C
ce
0.4
Output capacitance
V
CE
= 6 V,
V
BE
=
v
be
= 0,
f
= 1 MHz
C
obs
0.86
1.2
dB
Noise figure
I
C
= 5 mA,
V
CE
= 6 V,
f
= 10 MHz,
Z
S
= 75
I
C
= 2 mA,
V
CE
= 6 V,
f
= 800 MHz,
Z
S
=
Z
Sopt
I
C
= 3 mA,
V
CE
= 10 V,
f
= 2 GHz,
Z
S
=
Z
Sopt
F
1.4
1.5
3.2
2.2
3
pF
Collector-base capacitance
V
CB
= 6 V,
V
BE
=
v
be
= 0,
f
= 1 MHz
C
cb
0.46
0.6
Input capacitance
V
EB
= 0.5 V,
I
C
=
i
c
= 0,
f
= 1 MHz
C
ibo
1.2
Transducer gain
I
C
= 20 mA,
V
CE
= 6 V,
f
= 1 GHz,
Z
0
= 50
I
S
21e
I
2
13.4
mV
Linear output voltage
two-tone intermodulation test
I
C
= 15 mA,
V
CE
= 10 V,
d
IM
= 60 dB,
f
1
= 806 MHz,
f
2
= 810 MHz,
Z
S
=
Z
L
= 50
V
o1
=
V
o2
110
dBm
Third order intercept point
I
C
= 15 mA,
V
CE
= 10 V,
f
= 800 MHz
IP
3
23.5
BFQ 71
Total power dissipation
P
tot
=
f
(
T
A
*;
T
S
)
*Package mounted on alumina
Collector-base capacitance
C
cb
=
f
(
V
CB
)
V
BE
=
v
be
= 0,
f
= 1 MHz
Transition frequency
f
T
=
f
(
I
C
)
V
CE
= 6 V,
f
= 200 MHz
BFQ 71
Noise figure
F
=
f
(
Z
S
)
V
CE
= 6 V,
f
= 10 MHz
Common Emitter Noise Parameters
I
C
= 2 mA,
V
CE
= 6 V,
Z
0
= 50
I
C
= 5 mA,
V
CE
= 10 V,
Z
0
= 50
0.01
1.1
(
Z
S
= 150
)
1.6
f
opt
GHz
dB
dB
MAG
ANG
dB
dB
F
min
G
p
(
F
min
)
R
N
N
F
50
G
p
(
F
50
)
0.01
0.8
2.0
1.3
1.6
3.1
15.3
9
(
Z
S
= 100
)
56
124.5
18.5
30
0.24
0.67
1.7
1.8
14.8
0.29
0.12
BFQ 71
Circles of constant noise figure
F
=
f
(
Z
S
)
and available power gain
G
av
=
f
(
Z
S
)
I
C
= 5 mA,
V
CE
= 10 V,
f
= 800 MHz
Circles of constant noise figure
F
=
f
(
Z
S
)
and available power gain
G
av
=
f
(
Z
S
)
I
C
= 5 mA,
V
CE
= 10 V,
f
= 2 GHz
Noise figure
F
=
f
(
I
C
)
Power gain
G
=
f
(
I
C
)
V
CE
= 10 V,
f
= 800 MHz,
Z
Lopt
(
G
)
Noise figure
F
=
f
(
I
C
)
Power gain
G
=
f
(
I
C
)
V
CE
= 10 V,
f
= 2 GHz,
Z
Lopt
(
G
)
BFQ 71
Common Emitter Power Gain
Power gain
G
ms
,
S
21e
2
=
f
(
I
C
)
V
CE
= 6 V,
f
= 200 MHz,
Z
0
= 50
Power gain
G
ms
,
S
21e
2
=
f
(
I
C
)
V
CE
= 6 V,
f
= 800 MHz,
Z
0
= 50
Power gain
G
ms
,
S
21e
2
=
f
(
I
C
)
V
CE
= 6 V,
f
= 500 MHz,
Z
0
= 50
Power gain
G
ma
,
S
21e
2
=
f
(
I
C
)
V
CE
= 6 V,
f
= 2 GHz,
Z
0
= 50
BFQ 71
BFQ 71
Power gain
G
ms
,
S
21e
2
=
f
(
f
)
I
C
= 2 mA,
V
CE
= 6 V,
Z
0
= 50
Power gain
G
ma
,
G
ms
,
S
21e
2
=
f
(
f
)
I
C
= 10 mA,
V
CE
= 6 V,
Z
0
= 50
Power gain
G
ma
,
G
ms
,
S
21e
2
=
f
(
f
)
I
C
= 5 mA,
V
CE
= 6 V,
Z
0
= 50
Power gain
G
ma
,
G
ms
,
S
21e
2
=
f
(
f
)
I
C
= 20 mA,
V
CE
= 6 V,
Z
0
= 50
Common Emitter S Parameters
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.90
0.87
0.81
0.77
0.69
0.64
0.61
0.59
0.57
0.57
0.58
0.59
0.60
19
37
55
71
97
118
134
147
163
176
176
159
145
6.93
6.45
5.85
5.41
4.41
3.64
3.06
2.64
2.19
1.87
1.70
1.41
1.21
166
152
140
129
112
98
87
79
66
56
49
34
21
0.025
0.048
0.068
0.082
0.101
0.112
0.118
0.121
0.125
0.129
0.131
0.138
0.150
78
68
59
51
40
33
28
25
22
20
20
20
19
0.98
0.94
0.88
0.82
0.73
0.65
0.60
0.57
0.54
0.52
0.51
0.49
0.48
8
16
23
28
36
41
45
49
54
60
65
78
92
I
C
= 2 mA,
V
CE
= 6 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 2 mA,
V
CE
= 6 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 2 mA,
V
CE
= 6 V,
Z
0
= 50
BFQ 71
S
11
,
S
22
=
f
(
f
)
I
C
= 5 mA,
V
CE
= 6 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 5 mA,
V
CE
= 6 V,
Z
0
= 50
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.79
0.73
0.66
0.62
0.57
0.55
0.54
0.54
0.54
0.54
0.56
0.57
0.59
31
59
83
102
128
146
160
170
178
168
162
148
136
14.23
12.37
10.36
8.88
6.56
5.12
4.17
3.55
2.89
2.43
2.20
1.81
1.55
160
151
127
115
100
89
80
73
63
54
48
35
23
0.023
0.040
0.053
0.060
0.071
0.077
0.083
0.089
0.099
0.110
0.117
0.137
0.158
76
61
51
45
40
37
37
37
37
37
36
35
32
0.95
0.84
0.73
0.65
0.53
0.47
0.43
0.40
0.38
0.37
0.36
0.34
0.34
14
26
33
38
43
46
48
51
55
61
65
78
92
I
C
= 5 mA,
V
CE
= 6 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.68
0.60
0.55
0.55
0.53
0.53
0.53
0.53
0.53
0.54
0.56
0.58
0.60
47
85
111
128
150
164
174
178
168
160
155
143
132
22.06
17.31
13.39
10.84
7.60
5.80
4.67
3.95
3.19
2.67
2.42
1.99
1.69
152
130
116
106
93
83
76
70
60
52
47
34
23
0.020
0.032
0.040
0.045
0.053
0.061
0.069
0.078
0.091
0.106
0.114
0.138
0.163
70
56
49
46
46
46
47
48
48
47
46
43
38
0.90
0.73
0.59
0.51
0.41
0.37
0.34
0.32
0.31
0.31
0.30
0.28
0.28
20
33
39
42
44
46
47
49
53
59
63
76
91
I
C
= 10 mA,
V
CE
= 6 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 10 mA,
V
CE
= 6 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 10 mA,
V
CE
= 6 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.56
0.47
0.42
0.42
0.41
0.40
0.41
0.41
0.41
0.43
0.44
0.46
0.50
57
96
121
137
156
168
177
176
169
161
156
147
137
25.74
18.17
13.28
10.48
7.19
5.46
4.39
3.71
3.01
2.53
2.31
1.91
1.65
145
122
109
100
89
81
74
68
59
52
47
35
24
0.018
0.028
0.035
0.042
0.054
0.068
0.082
0.096
0.118
0.142
0.158
0.204
0.255
69
58
56
57
59
60
60
60
58
56
53
47
38
0.85
0.65
0.54
0.47
0.41
0.39
0.37
0.36
0.35
0.35
0.34
0.33
0.32
23
32
35
35
36
37
39
41
45
52
57
70
88
I
C
= 15 mA,
V
CE
= 6 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 15 mA,
V
CE
= 6 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 15 mA,
V
CE
= 6 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.54
0.52
0.51
0.52
0.52
0.53
0.54
0.54
0.54
0.55
0.58
0.59
0.62
71
114
137
150
166
176
176
170
161
155
150
140
130
29.35
20.19
14.58
11.40
7.77
5.86
4.69
3.96
3.19
2.66
2.41
1.97
1.68
142
119
106
98
87
79
73
66
57
50
45
32
21
0.016
0.025
0.030
0.034
0.043
0.053
0.062
0.072
0.087
0.102
0.112
0.137
0.162
66
52
51
51
54
56
56
56
55
53
52
48
42
0.82
0.60
0.48
0.42
0.36
0.34
0.32
0.31
0.30
0.30
0.30
0.28
0.28
25
36
39
39
38
39
41
43
47
54
59
72
87
I
C
= 20 mA,
V
CE
= 6 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 20 mA,
V
CE
= 6 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 20 mA,
V
CE
= 6 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.91
0.87
0.82
0.78
0.70
0.64
0.60
0.58
0.56
0.56
0.57
0.58
0.59
17
36
53
69
94
115
132
145
161
174
177
160
146
7.02
6.57
5.98
5.01
4.54
3.76
3.17
2.74
2.28
1.94
1.77
1.47
1.26
166
153
141
130
113
100
89
80
68
57
51
36
22
0.021
0.042
0.060
0.073
0.090
0.100
0.106
0.109
0.113
0.118
0.120
0.127
0.140
78
69
60
53
42
35
30
27
24
23
23
23
23
0.98
0.95
0.90
0.84
0.75
0.69
0.64
0.61
0.58
0.56
0.55
0.53
0.52
7
14
20
25
33
38
41
45
50
55
60
72
85
I
C
= 2 mA,
V
CE
= 10 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 2 mA,
V
CE
= 10 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 2 mA,
V
CE
= 10 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.80
0.73
0.67
0.63
0.57
0.54
0.53
0.52
0.52
0.53
0.54
0.56
0.58
28
57
79
98
125
143
157
168
180
170
163
150
137
14.24
12.50
10.55
9.10
6.78
5.31
4.33
3.69
3.00
2.52
2.29
1.89
1.61
160
142
128
117
101
90
81
74
63
54
49
36
23
0.020
0.036
0.047
0.055
0.064
0.071
0.076
0.082
0.091
0.101
0.108
0.127
0.148
71
61
53
47
41
39
38
38
39
39
39
38
35
0.95
0.86
0.76
0.68
0.58
0.52
0.48
0.46
0.44
0.43
0.42
0.40
0.40
13
23
29
34
38
41
43
45
49
55
59
70
84
I
C
= 5 mA,
V
CE
= 10 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 5 mA,
V
CE
= 10 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 5 mA,
V
CE
= 10 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.68
0.60
0.56
0.54
0.51
0.51
0.51
0.51
0.51
0.52
0.54
0.56
0.58
43
78
105
123
146
161
171
180
170
162
156
145
134
21.82
17.39
13.60
11.10
7.83
5.99
4.83
4.08
3.30
2.77
2.51
2.06
1.75
153
131
117
107
94
84
77
70
61
53
48
35
23
0.018
0.030
0.037
0.042
0.050
0.057
0.064
0.072
0.084
0.098
0.106
0.129
0.152
71
58
50
47
46
47
48
49
49
48
47
45
40
0.91
0.76
0.64
0.56
0.47
0.43
0.41
0.39
0.38
0.38
0.37
0.35
0.35
17
29
34
36
38
39
41
43
48
52
56
67
81
I
C
= 10 mA,
V
CE
= 10 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 10 mA,
V
CE
= 10 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 10 mA,
V
CE
= 10 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.62
0.55
0.52
0.51
0.50
0.50
0.51
0.51
0.51
0.53
0.54
0.57
0.59
55
94
119
136
156
169
178
175
166
158
153
143
132
26.35
19.54
14.64
11.66
8.06
6.12
4.91
4.15
3.35
2.80
2.53
2.07
1.77
148
125
112
102
90
82
75
68
59
51
47
34
23
0.017
0.026
0.031
0.036
0.044
0.052
0.061
0.069
0.082
0.097
0.106
0.129
0.153
69
55
50
50
51
52
53
54
53
52
51
48
43
0.88
0.69
0.57
0.50
0.44
0.41
0.39
0.38
0.37
0.37
0.36
0.34
0.34
20
31
34
35
35
36
38
40
44
50
54
65
80
I
C
= 15 mA,
V
CE
= 10 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 15 mA,
V
CE
= 10 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 15 mA,
V
CE
= 10 V,
Z
0
= 50
BFQ 71
Common Emitter S Parameters (continued)
f
S
11
S
21
S
12
S
22
GHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.1
0.2
0.3
0.4
0.6
0.8
1.0
1.2
1.5
1.8
2.0
2.5
3.0
0.57
0.52
0.50
0.51
0.50
0.51
0.52
0.52
0.52
0.53
0.55
0.57
0.60
63
106
130
144
162
173
179
172
163
156
152
141
131
28.86
20.30
14.82
11.65
7.97
6.02
4.83
4.08
3.29
2.74
2.49
2.04
1.73
144
121
108
99
88
80
73
67
58
50
46
33
22
0.015
0.024
0.029
0.033
0.041
0.050
0.058
0.068
0.081
0.096
0.104
0.128
0.152
65
54
50
52
54
56
56
57
56
54
53
50
44
0.84
0.65
0.54
0.49
0.43
0.41
0.40
0.38
0.38
0.38
0.37
0.36
0.36
21
30
32
32
32
33
35
38
42
48
53
64
79
I
C
= 20 mA,
V
CE
= 10 V,
Z
0
= 50
S
11
,
S
22
=
f
(
f
)
I
C
= 20 mA,
V
CE
= 10 V,
Z
0
= 50
S
12
,
S
21
=
f
(
f
)
I
C
= 20 mA,
V
CE
= 10 V,
Z
0
= 50
BFQ 71
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