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NE681 Datasheet(PDF) 4 Page - NEC

Part # NE681
Description  NECs NPN SILICON HIGH FREQUENCY TRANSISTOR
PDF  20 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

NE681 Datasheet(HTML) 4 Page - NEC

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NE681 SERIES
FREQ.
NFOPT
GA
Γ
Γ
Γ
Γ
ΓOPT
(MHz)
(dB)
(dB)
MAG
ANG
Rn/50
500
1.21
12.45
0.75
47
1.15
800
1.69
7.72
0.74
72
0.97
1000
1.95
5.96
0.68
88
0.71
1500
2.52
3.12
0.63
122
0.34
NE68133
TYPICAL NOISE PARAMETERS (TA = 25°C)
VCE = 2.5 V, IC = 1.0 mA
500
.92
14.52
0.68
47
0.42
800
1.20
10.57
0.63
70
0.34
1000
1.35
9.29
0.57
87
0.30
1500
1.71
6.53
0.50
120
0.17
2000
2.00
5.53
0.44
168
0.11
VCE = 2.5 V, IC = 3 mA
500
0.86
16.37
0.54
47
0.24
800
1.00
12.41
0.51
67
0.20
1000
1.08
11.07
0.46
86
0.18
1500
1.25
8.61
0.36
128
0.12
2000
1.40
6.99
0.35
172
0.10
FREQ.
NFOPT
GA
Γ
Γ
Γ
Γ
ΓOPT
(MHz)
(dB)
(dB)
MAG
ANG
Rn/50
500
1.20
14.10
0.78
47
1.28
800
1.45
8.42
0.75
72
0.84
1000
1.67
8.37
0.68
95
0.56
NE68139
TYPICAL NOISE PARAMETERS (TA = 25°C)
VCE = 2.5 V, IC = 1 mA
500
0.90
15.71
0.63
44
0.43
800
1.10
12.30
0.56
72
0.26
1000
1.26
11.66
0.53
98
0.20
1500
1.70
8.85
0.49
145
0.12
2000
2.20
7.12
0.57
178
0.07
VCE = 8 V, IC = 7 mA
500
1.15
20.50
0.26
42
0.17
1000
1.25
15.62
0.16
133
0.14
1500
1.4
12.49
0.20
176
0.09
2000
1.6
10.48
0.31
-165
0.14
3000
2.15
8.00
0.53
-123
0.48
4000
3.0
6.81
0.71
-101
0.90
VCE = 2.5 V, IC = 3 mA
500
0.88
18.20
0.45
44
0.25
800
1.00
14.62
0.39
73
0.19
1000
1.08
13.29
0.37
99
0.16
1500
1.30
10.54
0.35
151
0.09
2000
1.80
8.60
0.43
-177
0.07
VCE = 8 V
f = 2 GHz
f = 3 GHz
f = 4 GHz
12
10
8
6
4
2
0
1
2
3
5
7
10
20
30
50
Collector Current, IC (mA)
NE68100 & NE68135
INSERTION GAIN vs.
COLLECTOR CURRENT
Frequency, f (GHz)
VCE = 8 V
IC = 20 mA
NE68133
|S21E|
2
MAG
NE68100
|S21E|2
MAG
NE68135
30
25
20
15
10
5
0
0.1
0.2 0.3
0.5 0.7 1
2
3
5 7 10
FORWARD INSERTION GAIN
AND MAXIMUM AVAILABLE GAIN
vs. FREQUENCY
TYPICAL PERFORMANCE CURVES (TA = 25°C)
VCE = 2.5 V, IC = 0.3 mA
VCE = 2.5 V, IC = 0.3 mA



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