DATA SHEET
SILICON TRANSISTOR
2SC4228
HIGH FREQUENCY LOW NOISE AMPLIFIER
NPN SILICON EPITAXIAL TRANSISTOR
SUPER MINI MOLD
DESCRIPTION
The 2SC4228 is a low supply voltage transistor designed for VHF,
UHF low noise amplifier.
It is suitable for a high density surface mount assembly since the
transistor has been applied super mini mold package.
This is achieved by direct nitride passivated base surface process
(NESAT
TM
process) which is an NEC proprietary fabrication technique.
PACKAGE DIMENSIONS
in millimeters
2.1 ± 0.1
1.25 ± 0.1
2.0 ± 0.2
+0.1
0.3
–0
0.65 0.65
2
3
+0.1
0.3
–0
FEATURES
• High f
T
• Low C
re
: 8.0 GHz TYP. (@ V
CE
= 3 V, I
C
= 5 mA, f = 2 GHz)
: 0.3 pF TYP. (@ V
CB
= 3 V, I
E
= 0, f = 1 MHz)
1
• High |S
21e
|
2
: 7.5 dB TYP. (@ V
CE
= 3 V, I
C
= 5 mA, f = 2 GHz)
• Super Mini Mold Package. (EIAJ: SC-70)
Marking
0.9 ± 0.1
ORDERING INFORMATION
PART
NUMBER
2SC4228-T1
0.3
QUANTITY
3 kpcs/Reel.
PACKING STYLE
Embossed tape 8 mm wide.
Pin3 (Collector) face to perforation side
of the tape.
Embossed tape 8 mm wide.
Pin1 (Emitter), Pin2 (Base) face to
perforation side of the tape.
2SC4228-T2
3 kpcs/Reel.
PIN CONNECTIONS
1. Emitter
2. Base
3. Collector
*
Please contact with responsible NEC person, if you require evaluation
sample. Unit sample quantity shall be 50 pcs. (Part No.: 2SC4228)
Document No. P10372EJ2V0DS00 (2nd edition)
(Previous No. TC-2404)
Date Published July 1995 P
Printed in Japan
0 to 0.1
©
0.15
+0.1
–0.05
1993
2SC4228
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 ˚C)
Collector to Base Voltage
Collector to Emitter Voltage
Emitter to Base Voltage
Collector Current
Total Power Dissipation
Junction Temperature
Storage Temperature
V
CBO
V
CEO
V
EBO
I
C
P
T
T
j
T
stg
20
10
1.5
35
150
150
–65 to +150
V
V
V
mA
mW
˚
C
˚
C
ELECTRICAL CHARACTERISTICS (T
A
= 25 ˚C)
CHARACTERISTIC
Collector Cutoff Current
Emitter Cutoff Current
DC Current Gain
Gain Bandwidth Product
Feedback Capacitance
Insertion Power Gain
Noise Figure
SYMBOL
I
CBO
I
EBO
h
FE
f
T
C
re
|S
21e
|
2
NF
5.5
50
5.5
100
8.0
0.3
7.5
1.9
3.2
0.7
MIN.
TYP.
MAX.
1.0
1.0
250
GHz
pF
dB
dB
UNIT
TEST CONDITIONS
V
CB
= 10 V, I
E
= 0
V
EB
= 1 V, I
C
= 0
V
CE
= 3 V, I
C
= 5 mA*
1
V
CE
= 3 V, I
C
= 5 mA, f = 2 GHz
V
CB
= 3 V, I
E
= 0, f = 1 MHz*
2
V
CE
= 3 V, I
C
= 5 mA, f = 2 GHz
V
CE
= 3 V, I
C
= 5 mA, f = 2 GHz
µ
A
µ
A
*1
Pulse Measurement; PW
≤
350
µ
s, Duty Cycle
≤
2 %
*2
The emitter terminal and the case shall be connected to the guard terminal of the three-terminal capacitance
bridge.
h
FE
Classification
Rank
Marking
h
FE
R43
R43
50 to 100
R44
R44
80 to 160
R45
R45
125 to 250
2
2SC4228
TYPICAL CHARACTERISTICS (T
A
= 25 ˚C)
TOTAL POWER DISSIPATION vs.
AMBIENT TEMPERATURE
25
P
T
– Total Power Dissipation – mW
COLLECTOR CURRENT vs.
COLLECTOR TO EMITTER VOLTAGE
Free Air
200
I
C
– Collector Current – mA
20
15
µ
A
160
A
140
µ
120
µ
A
100
µ
A
80
µ
A
100
10
60
µ
A
5
40
µ
A
I
B
= 20
µ
A
0.5
V
CE
– Collector to Emitter Voltage – V
1.0
0
50
100
150
0
T
A
– Ambient Temperature – ˚C
COLLECTOR CURRENT vs.
BASE TO EMITTER VOLTAGE
20
V
CE
= 3 V
I
C
– Collector Current – mA
h
FE
– DC Current Gain
DC CURRENT GAIN vs.
COLLECTOR CURRENT
200
V
CE
= 3 V
100
10
50
20
0
0.5
V
BE
– Base to Emitter Voltage – V
1.0
10
0.5
1
5
10
50
I
C
– Collector Current – mA
FEED-BACK CAPACITANCE vs.
COLLECTOR TO BASE VOLTAGE
5.0
f = 1 MHz
2.0
1.0
0.5
f
T
– Gain Bandwidth Product – GHz
C
re
– Feed-back Capacitance – pF
GAIN BANDWIDTH PRODUCT vs.
COLLECTOR CURRENT
10
V
CE
= 3 V
f = 2 GHz
8
6
4
0.2
0.1
2
0
0.5
1
2
5
10
20
50
1
5
10
50
V
CB
– Collector to Base Voltage – V
I
C
– Collector Current – mA
3
2SC4228
INSERTION POWER GAIN vs.
COLLECTOR CURRENT
12
INSERTION POWER GAIN vs.
FREQUENCY
25
|S
21e
|
2
– Insertion Power Gain – dB
|S
21e
|
2
– Insertion Power Gain – dB
V
CE
= 3 V
f = 2 GHz
V
CE
= 3 V
I
C
= 5 mA
20
8
15
10
4
5
0
0.1
0
0.5
1
5
10
50
0.5
1.0
5.0
I
C
– Collector Current – mA
f – Frequency – GHz
NOISE FIGURE vs.
COLLECTOR CURRENT
5
V
CE
= 3 V
f = 2 GHz
NF – Noise Figure – dB
4
3
2
1
0
0.5
1
5
10
50
I
C
– Collector Current – mA
4
2SC4228
S-PARAMETER
V
CE
= 3 V, I
C
= 5 mA, Z
O
= 50
Ω
FREQUENCY
MHz
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
1100.00
1200.00
1300.00
1400.00
1500.00
1600.00
1700.00
1800.00
1900.00
2000.00
MAG
.875
.762
.677
.565
.495
.425
.372
.327
.289
.255
.236
.214
.195
.182
.165
.153
.145
.139
.134
.129
S11
ANG
–18.6
–35.0
–47.2
–59.4
–67.5
–76.1
–81.6
–88.5
–93.6
–100.5
–105.2
–112.2
–117.6
–123.8
–129.9
–137.4
–144.3
–151.8
–157.0
–164.7
MAG
14.087
12.290
10.888
9.275
8.300
7.184
6.454
5.818
5.231
4.820
4.444
4.142
3.842
3.554
3.343
3.218
3.091
2.857
2.764
2.624
S21
ANG
161.1
145.1
133.6
123.6
115.7
108.9
104.8
99.5
95.5
92.0
88.8
85.3
83.2
79.3
77.4
75.3
73.6
70.4
68.7
66.4
MAG
.018
.034
.048
.055
.063
.074
.084
.089
.092
.104
.105
.113
.122
.127
.139
.140
.152
.162
.168
.176
S12
ANG
78.2
68.6
66.6
65.8
63.5
61.1
63.8
62.7
64.6
62.8
64.2
64.2
63.6
65.0
64.1
64.5
65.4
64.3
62.3
64.8
MAG
.958
.888
.800
.719
.669
.610
.600
.560
.543
.519
.512
.497
.476
.481
.467
.466
.458
.456
.451
.445
S22
ANG
–10.1
–17.7
–24.4
–26.7
–28.7
–30.3
–30.6
–31.3
–30.1
–33.4
–31.8
–33.4
–33.2
–34.2
–34.6
–34.8
–37.2
–36.1
–38.4
–39.0
V
CE
= 3 V, I
C
= 3 mA, Z
O
= 50
Ω
FREQUENCY
MHz
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
1100.00
1200.00
1300.00
1400.00
1500.00
1600.00
1700.00
1800.00
1900.00
2000.00
MAG
.943
.868
.815
.717
.655
.577
.518
.468
.420
.380
.344
.321
.291
.273
.250
.228
.219
.199
.193
.182
S11
ANG
–13.4
–26.6
–37.7
–48.9
–56.8
–65.5
–71.2
–78.1
–83.7
–90.6
–94.8
–101.6
–105.9
–111.7
–117.2
–122.4
–128.5
–135.3
–139.6
–146.9
MAG
9.384
8.668
8.165
7.279
6.780
6.061
5.504
5.074
4.632
4.340
3.951
3.717
3.485
3.306
3.134
2.959
2.819
2.699
2.572
2.474
S21
ANG
165.9
152.8
142.9
132.9
125.5
118.0
112.8
106.7
102.8
98.3
94.8
90.5
87.6
84.3
80.7
79.0
76.0
73.9
71.9
68.3
MAG
.020
.038
.051
.062
.075
.084
.091
.098
.102
.105
.112
.121
.128
.135
.140
.145
.153
.161
.163
.175
S12
ANG
84.1
77.2
67.9
63.9
63.9
60.0
59.7
57.0
59.0
56.6
57.8
59.0
58.7
59.8
58.0
59.5
59.0
58.4
60.3
59.8
MAG
.969
.936
.876
.804
.764
.708
.685
.639
.611
.592
.579
.551
.532
.535
.511
.516
.504
.493
.489
.482
S22
ANG
–7.7
–13.8
–20.9
–23.5
–26.7
–29.7
–31.1
–32.0
–32.8
–35.0
–34.1
–35.0
–35.9
–36.6
–37.5
–37.7
–39.0
–39.9
–41.4
–41.4
5
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