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Datasheet: 2SC4957-T2 (NEC)

HIGH FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR 4 PINS MINI MOLD

 

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NEC
The information in this document is subject to change without notice.
SILICON TRANSISTOR
2SC4957
HIGH FREQUENCY LOW NOISE AMPLIFIER
NPN SILICON EPITAXIAL TRANSISTOR
4 PINS MINI MOLD
FEATURES
Low Noise, High Gain
Low Voltage Operation
Low Feedback Capacitance
C
re
= 0.3 pF TYP.
ORDERING INFORMATION
PART
QUANTITY
PACKING STYLE
NUMBER
2SC4957-T1
3 Kpcs/Reel.
Embossed tape 8 mm wide.
Pin3 (Base), Pin4 (Emitter) face to perforation side
of the tape.
2SC4957-T2
3 Kpcs/Reel.
Embossed tape 8 mm wide.
Pin1 (Collector), Pin2 (Emitter) face to perforation
side of the tape.
*
Please contact with responsible NEC person, if you require evaluation
sample. Unit sample quantity shall be 50 pcs. (Part No.: 2SC4957)
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 C)
Collector to Base Voltage
V
CBO
9
V
Collector to Emitter Voltage
V
CEO
6
V
Emitter to Base Voltage
V
EBO
2
V
Collector Current
I
C
30
mA
Total Power Dissipation
P
T
180
mW
Junction Temperature
T
j
150
C
Storage Temperature
T
stg
65 to +150
C
1993
DATA SHEET
PACKAGE DIMENSIONS
in millimeters
PIN CONNECTIONS
1.
2.
3.
4.
Collector
Emitter
Base
Emitter
2.8
0.3
+0.2
1.5
0.1
+0.2
0.4
0.05
+0.1
0.4
0.05
+0.1
2.9 0.2
(1.8)
0.85
0.95
0.6
0.05
+0.1
0.4
0.05
+0.1
1.1
0.1
+0.2
0.8
0 to 0.1
0.16
0.06
+0.1
2
3
1
4
5
5
5
5
(1.9)
Caution; Electrostatic Sensitive Device.
Document No. P10379EJ2V0DS00 (2nd edition)
(Previous No. TD-2408)
Date Published July 1995 P
Printed in Japan
2
2SC4957
ELECTRICAL CHARACTERISTICS (T
A
= 25 C)
CHARACTERISTIC
SYMBOL
MIN.
TYP.
MAX.
UNIT
TEST CONDITION
Collector Cutoff Current
I
CBO
0.1
A
V
CB
= 5 V, I
E
= 0
Emitter Cutoff Current
I
EBO
0.1
A
V
EB
= 1 V, I
C
= 0
DC Current Gain
h
FE
75
150
V
CE
= 3 V, I
C
= 10 mA*
1
Gain Bandwidth Product
f
T
12
GHz
V
CE
= 3 V, I
C
= 10 mA
Feed-back Capacitance
C
re
0.3
0.5
pF
V
CB
= 3 V, I
E
= 0, f = 1 MHz*
2
Insertion Power Gain
|S
21e
|
2
9
11
dB
V
CE
= 3 V, I
C
= 10 mA, f = 2.0 GHz
Noise Figure
NF
1.5
2.5
dB
V
CE
= 3 V, I
C
= 3 mA, f = 2.0 GH
*1
Pulse Measurement; PW
350
s, Duty Cycle
2 % Pulsed.
*2
Measured with 3 terminals bridge, Emitter and Case should be grounded.
h
FE
Classification
Rank
T83
Marking
T83
h
FE
75 to 150
TYPICAL CHARACTERISTICS (T
A
= 25 C)
TOTAL POWER DISSIPATION
vs. AMBIENT TEMPERATURE
T
A
Ambient Temperature C
P
T
Total Power Dissipation mW
COLLECTOR CURRENT vs.
BASE TO EMITTER VOLTAGE
V
BE
Base to Emitter Voltage V
I
C
Collector Current mA
V
CE
= 3 V
Free Air
50
200
100
0
50
100
150
40
30
20
10
0
0.5
1.0
V
CE
= 3 V
180 mW
3
2SC4957
COLLECTOR CURRENT vs.
COLLECTOR TO EMITTER VOLTAGE
V
CE
Collector to Emitter Voltage V
I
C
Collector Current mA
DC CURRENT GAIN vs.
COLLECTOR CURRENT
I
C
Collector Current mA
h
FE
DC Current Gain
GAIN BANDWIDTH PRODUCT
vs. COLLECTOR CURRENT
I
C
Collector Current mA
f
T
Gain Bandwidth Product GHz
INSERTION POWER GAIN
vs. COLLECTOR CURRENT
I
C
Collector Current mA
|S
21e
|
2
Insertion Power Gain dB
f = 2 GHz
f = 2 GHz
1
60
0
1
500 A
400 A
300 A
200 A
I
B
= 100 A
50
40
30
20
10
2
3
4
5
6
12
0.1
200
100
0
0.2
0.5 1
2
5
10 20
50 100
5 V
V
CE
= 3 V
14
0.5
12
10
8
6
4
2
1
2
5
10
20
50
5 V
3 V
V
CE
= 1 V
5 V
3 V
V
CE
= 1 V
10
8
6
4
2
5
10
20
50
NOISE FIGURE vs.
COLLECTOR CURRENT
I
C
Collector Current mA
NF Noise Figure dB
FEED-BACK CAPACITANCE vs.
COLLECTOR TO BASE VOLTAGE
V
CB
Collector to Base Voltage V
C
re
Feed-back Capacitance pF
0.1
0.5
4
0.5
3
2
1
0
1
2
5
10
20
50
0.2
0.3
0.4
0.5
1
2
5
10
20
f = 2 GHz
V
CE
= 3 V
f = 1 MHz
4
2SC4957
S-PARAMETER
(V
CE
= 3 V, I
C
= 1 mA, Z
O
= 50
)
f
S
11
S
21
S
12
S
22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.935
14.9
3.466
165.9
.034
79.7
.991
7.9
0.400
.891
30.0
3.392
151.4
.066
73.1
.962
16.1
0.600
.830
44.6
3.269
137.9
.096
61.6
.916
22.6
0.800
.759
58.8
3.090
125.8
.119
53.2
.870
29.2
1.000
.677
74.2
2.891
113.5
.138
45.6
.813
35.1
1.200
.597
88.4
2.690
102.0
.154
40.6
.764
41.2
1.400
.521
104.0
2.519
92.4
.161
33.9
.706
46.0
1.600
.467
119.3
2.327
82.0
.172
31.2
.662
50.4
1.800
.418
134.6
2.190
73.1
.177
27.0
.619
55.3
2.000
.391
152.1
2.052
64.9
.177
23.4
.581
60.1
2.200
.382
168.4
1.909
56.5
.180
19.8
.550
64.5
2.400
.384
175.2
1.793
49.2
.189
22.1
.531
68.5
2.600
.379
163.6
1.684
42.4
.181
19.6
.484
73.2
2.800
.408
151.4
1.574
36.1
.189
18.3
.482
78.0
3.000
.431
142.5
1.482
31.5
.184
18.0
.454
84.7
(V
CE
= 3 V, I
C
= 3 mA, Z
O
= 50
)
f
S
11
S
21
S
12
S
22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.813
24.5
8.901
156.5
.034
79.6
.955
13.4
0.400
.693
46.7
7.806
135.6
.058
67.4
.862
24.7
0.600
.563
65.0
6.683
119.4
.078
59.1
.758
31.6
0.800
.453
81.5
5.677
106.9
.092
53.5
.669
37.3
1.000
.362
98.3
4.878
95.8
.105
50.1
.606
40.8
1.200
.290
115.6
4.249
86.1
.112
47.5
.553
45.2
1.400
.250
133.3
3.771
78.6
.123
46.3
.509
48.4
1.600
.217
153.6
3.363
70.7
.141
43.2
.472
52.4
1.800
.206
171.5
3.053
63.4
.149
42.5
.438
55.7
2.000
.221
170.3
2.807
57.1
.158
39.6
.407
60.9
2.200
.238
153.4
2.571
50.5
.169
39.1
.388
65.7
2.400
.264
142.1
2.382
45.0
.178
36.3
.362
70.1
2.600
.285
132.7
2.219
39.6
.197
35.2
.326
73.4
2.800
.317
124.4
2.080
34.3
.204
35.4
.317
79.0
3.000
.344
119.8
1.953
29.7
.223
32.9
.302
87.6
5
2SC4957
S-PARAMETER
(V
CE
= 3 V, I
C
= 5 mA, Z
O
= 50
)
f
S
11
S
21
S
12
S
22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.716
31.0
12.446
150.0
.030
73.7
.918
17.3
0.400
.553
55.6
10.005
126.8
.053
65.2
.777
28.8
0.600
.412
74.5
8.004
110.6
.067
60.3
.659
34.0
0.800
.315
91.6
6.521
99.2
.084
56.2
.577
38.0
1.000
.243
109.4
5.457
89.4
.099
58.4
.526
40.5
1.200
.190
130.1
4.678
80.7
.106
53.6
.488
44.5
1.400
.167
152.1
4.099
74.1
.120
51.9
.447
46.9
1.600
.161
174.4
3.628
67.1
.133
49.3
.420
51.2
1.800
.162
167.5
3.287
60.5
.146
48.0
.389
55.1
2.000
.193
149.8
3.008
54.9
.157
46.3
.354
59.2
2.200
.220
137.4
2.748
48.6
.169
44.9
.341
63.9
2.400
.252
128.7
2.552
43.7
.185
39.6
.315
69.2
2.600
.267
122.3
2.366
38.6
.201
40.2
.291
71.6
2.800
.311
116.7
2.212
33.7
.211
37.0
.270
76.9
3.000
.330
112.1
2.079
29.2
.228
35.6
.260
88.5
(V
CE
= 3 V, I
C
= 10 mA, Z
O
= 50
)
f
S
11
S
21
S
12
S
22
(GHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
0.200
.536
42.2
17.753
139.3
.024
66.6
.840
22.7
0.400
.349
68.1
12.387
115.1
.041
67.9
.654
31.7
0.600
.232
88.4
9.189
100.7
.057
64.3
.547
34.1
0.800
.165
107.1
7.205
91.0
.071
60.3
.489
35.7
1.000
.124
130.9
5.913
82.8
.090
62.7
.451
37.5
1.200
.106
163.8
5.000
75.3
.103
61.1
.413
41.4
1.400
.116
173.3
4.352
69.7
.122
58.4
.394
43.4
1.600
.137
153.2
3.841
63.5
.138
54.9
.367
47.4
1.800
.149
137.7
3.463
57.5
.145
54.6
.338
51.0
2.000
.184
129.3
3.168
52.5
.170
51.2
.319
55.9
2.200
.216
121.9
2.876
46.7
.184
48.0
.298
63.7
2.400
.249
117.4
2.676
42.1
.191
46.4
.282
67.7
2.600
.270
111.3
2.486
37.3
.208
42.9
.241
71.9
2.800
.306
109.1
2.319
32.9
.221
39.2
.236
76.7
3.000
.328
105.5
2.183
28.4
.238
36.7
.210
89.3
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