ETC 2SC4903

2SC4903
Silicon NPN Bipolar Transistor
Application
CMPAK
VHF & UHF wide band amplifire
Features
3
1
• High gain bandwidth product
fT = 6 GHz typ
• High gain, low noise figure
PG = 12.0 dB typ,
NF = 1.6 dB typ at f = 900 MHz
2
1. Emitter
2. Base
3. Collector
Table 1 Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
Ratings
Unit
———————————————————————————————————————————
Collector to base voltage
VCBO
20
V
———————————————————————————————————————————
Collector to emitter voltage
VCEO
12
V
———————————————————————————————————————————
Emitter to base voltage
VEBO
2
V
———————————————————————————————————————————
Collector current
IC
30
mA
———————————————————————————————————————————
Collector power dissipation
PC
100
mW
———————————————————————————————————————————
Junction temperature
Tj
150
°C
———————————————————————————————————————————
Storage temperature
Tstg
–55 to +150
°C
———————————————————————————————————————————
2SC4903
Table 2 Electrical Characteristics (Ta = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Test conditions
———————————————————————————————————————————
Collector cutoff current
ICBO
—
—
10
µA
VCB = 20 V,
IE = 0
———————————————————————————————
ICEO
—
—
1
mA
VCE = 12 V,
RBE = ∞
———————————————————————————————————————————
Emitter cutoff current
IEBO
—
—
10
µA
VEB = 2 V,
IC = 0
———————————————————————————————————————————
DC current transfer ratio
hFE
50
120
250
VCE = 5 V,
IC = 10 mA
———————————————————————————————————————————
Output capacitance
Cob
—
0.6
1.0
pF
VCB = 5 V,
IE = 0, f = 1 MHz
———————————————————————————————————————————
Gain bandwidth
product
fT
4.0
6.0
—
GHz
VCE = 5 V,
IC = 10 mA
———————————————————————————————————————————
Power gain
PG
9.5
12.0
—
dB
VCE = 5 V,
IC = 10 mA,
f = 900 MHz
———————————————————————————————————————————
Noise figure
NF
—
1.6
3.0
dB
VCE = 5 V,
IC = 5 mA,
f = 900 MHz
———————————————————————————————————————————
Marking for 2SC4903 is “YL–”.
Attention: This is electrostatic sensitive device.
2SC4903
DC current transfer ratio
vs. collector current
Maximum collector power dissipation curve
200
DC Current Transfer Ratio h FE
Collector Power Dissipation Pc (mW)
200
VCE = 5V
160
150
120
100
50
0
80
40
0
0.1 0.2
50
100
150
200
Ambient Temperature Ta (°C)
Collector Output Capacitance Cob (pF)
Gain Bandwidth Product f T (GHz)
VCE = 5 V
10
8
6
4
2
0
1
2
5
10
20
Collector Current I C (mA)
50
50
Collector output capacitance
vs. collector to base voltage
Gain bandwidth product vs. collector current
12
0.5 1 2
5 10 20
Collector Current I C (mA)
1.0
IE = 0
f = 1 MHz
0.9
0.8
0.7
0.6
0.5
0.5
1
2
5
10
20
Collector to Base Voltage V CB (V)
2SC4903
Noise figure vs. collector current
Power gain vs. collector current
20
5
VCE = 5V
f = 900MHz
VCE = 5V
f = 900 MHz
NF (dB)
Power Gain PG (dB)
16
Noise Figure
12
8
4
0
1
50
20
|S21 | (dB)
VCE = 5V
f = 1 GHz
16
12
S 21 Parameter
3
2
1
0
2
20
5
10
Collector Current I C (mA)
S21 parameter vs. collector current
8
4
0
1
4
2
5
20
10
Collector Current I C (mA)
50
1
10
5
20
2
Collector Current I C (mA)
50
2SC4903
S21 parameter vs. frequency
S11 parameter vs. frequency
.8
.6
1
90°
1.5
2
.4
Scale: 4 / div.
120°
60°
3
150°
4
5
.2
30°
10
.2
0
.4
.6
1
1.5 2
3 45
10
0°
180°
–10
–5
–4
–3
–.2
–.4
–30°
–150°
–2
–.6
–.8
–1
–90°
Condition: VCE = 5 V , Zo = 50 Ω
100 MHz to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
Condition: VCE = 5 V , Zo = 50 Ω
100 MHz to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
S22 parameter vs. frequency
S12 parameter vs. frequency
90°
120°
–60°
–120°
–1.5
Scale: 0.04 / div.
.6
60°
.8
1
1.5
2
.4
150°
30°
3
4
5
.2
10
0°
180°
.4 .6 .8 1
.2
0
1.5 2
3 45
10
–10
–5
–4
–3
–.2
–30°
–150°
–.4
–120°
–60°
–90°
Condition: VCE = 5 V , Zo = 50 Ω
100 MHz to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
–2
–.6
–.8
–1
–1.5
Condition: VCE = 5 V , Zo = 50 Ω
100 MHz to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
2SC4903
Table 3 S Parameter (VCE = 5 V, IC = 5 mA, ZO = 50 Ω, Emitter common)
f (MHz)
S11
S21
S12
S22
———————
———————
———————
———————
MAG
MAG
MAG
MAG
ANG
ANG
ANG
ANG
———————————————————————————————————————————
100
0.872
–23.3
11.28
161.2
0.0266
77.9
0.956
–13.4
———————————————————————————————————————————
200
0.777
–43.6
10.03
144.3
0.0493
67.3
0.862
–24.4
———————————————————————————————————————————
300
0.672
–62.0
8.59
130.8
0.0661
60.2
0.759
–32.4
———————————————————————————————————————————
400
0.586
–75.7
7.36
121.0
0.0777
56.0
0.672
–37.4
———————————————————————————————————————————
500
0.517
–88.0
6.34
112.8
0.0866
53.6
0.604
–40.7
———————————————————————————————————————————
600
0.462
–98.0
5.52
106.4
0.0941
53.1
0.553
–43.0
———————————————————————————————————————————
700
0.417
–107.3
4.88
101.1
0.102
52.5
0.514
–44.6
———————————————————————————————————————————
800
0.384
–115.9
4.39
96.5
0.108
52.7
0.483
–46.0
———————————————————————————————————————————
900
0.359
–122.7
3.97
92.2
0.115
53.3
0.460
–46.9
———————————————————————————————————————————
1000
0.336
–130.8
3.63
88.5
0.121
53.4
0.441
–48.3
———————————————————————————————————————————
Table 4 S Parameter (VCE = 5 V, IC = 10 mA, ZO = 50 Ω, Emitter common)
f (MHz)
S11
S21
S12
S22
———————
———————
———————
———————
MAG
MAG
MAG
MAG
ANG
ANG
ANG
ANG
———————————————————————————————————————————
100
0.798
–30.5
16.22
155.6
0.0254
74.9
0.921
–17.5
———————————————————————————————————————————
200
0.666
–56.4
13.39
136.1
0.0442
63.8
0.780
–30.3
———————————————————————————————————————————
300
0.550
–76.4
10.76
122.3
0.0569
58.9
0.652
–37.3
———————————————————————————————————————————
400
0.470
–90.8
8.80
113.0
0.0663
57.1
0.561
–41.0
———————————————————————————————————————————
500
0.412
–104.2
7.39
105.6
0.0741
56.5
0.500
–43.1
———————————————————————————————————————————
600
0.373
–114.0
6.33
100.3
0.0821
57.2
0.456
–44.1
———————————————————————————————————————————
700
0.345
–123.6
5.53
95.5
0.0899
57.9
0.425
–44.9
———————————————————————————————————————————
800
0.322
–131.5
4.91
91.6
0.0973
58.5
0.401
–45.4
———————————————————————————————————————————
900
0.307
–138.7
4.41
87.8
0.106
59.4
0.384
–46.0
———————————————————————————————————————————
1000
0.294
–145.5
4.02
84.8
0.114
59.9
0.371
–46.8
———————————————————————————————————————————