ETC 2SC4902

2SC4902
Silicon NPN Bipolar Transistor
Application
MPAK
VHF & UHF wide band amplifire
3
Features
• 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
1
2
SCALE : 4/1
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
150
mW
———————————————————————————————————————————
Junction temperature
Tj
150
°C
———————————————————————————————————————————
Storage temperature
Tstg
–55 to +150
°C
———————————————————————————————————————————
2SC4902
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 2SC4902 is “YL–”.
Attention: This is electrostatic sensitive device.
2SC4902
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)
2SC4902
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
3
2
1
0
2
20
5
10
Collector Current I C (mA)
50
S21 parameter vs. collector current
20
|S21 | (dB)
VCE = 5V
f = 1 GHz
16
12
S 21 Parameter
4
8
4
0
1
2
5
10
20
Collector Current I C (mA)
50
1
10
5
20
2
Collector Current I C (mA)
50
2SC4902
S21 parameter vs. frequency
S11 parameter vs. frequency
.6
.8
1
Scale: 4 / div.
90°
1.5
120°
2
.4
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
–60°
–90°
Condition: VCE = 5 V , Zo = 50 Ω
100 to 1000 (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
–120°
–1.5
–.8 –1
Condition: VCE = 5 V , Zo = 50 Ω
100 to 1000 (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
S22 parameter vs. frequency
S12 parameter vs. frequency
90°
120°
Scale: 0.04 / div.
.8
.6
60°
1
1.5
2
.4
150°
30°
3
4
5
.2
10
0°
180°
.2
0
.4 .6 .8 1
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 to 1000 (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 to 1000 (100 MHz step)
(I C = 5 mA)
(I C = 10 mA)
2SC4902
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
0.792
–23.8
10.79
161.8
0.0247
77.8
0.961
–12.2
———————————————————————————————————————————
200
0.721
–45.5
9.63
145.3
0.0455
67.4
0.876
–22.4
———————————————————————————————————————————
300
0.629
–64.5
8.31
131.9
0.0613
60.4
0.778
–29.6
———————————————————————————————————————————
400
0.556
–79.9
7.15
122.0
0.0717
56.2
0.695
–34.4
———————————————————————————————————————————
500
0.500
–93.1
6.18
113.9
0.0800
53.9
0.631
–37.3
———————————————————————————————————————————
600
0.448
–104.3
5.39
107.6
0.0869
52.7
0.581
–39.5
———————————————————————————————————————————
700
0.415
–113.7
4.77
102.2
0.0930
52.3
0.543
–40.9
———————————————————————————————————————————
800
0.388
–122.0
4.30
97.6
0.0989
52.5
0.514
–42.1
———————————————————————————————————————————
900
0.366
–130.5
3.89
93.1
0.104
53.4
0.491
–42.9
———————————————————————————————————————————
1000
0.354
–138.4
3.56
89.6
0.110
54.1
0.474
–44.3
———————————————————————————————————————————
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
0.706
–31.5
15.14
156.8
0.0230
75.7
0.933
–15.8
———————————————————————————————————————————
200
0.608
–58.8
12.67
137.4
0.0403
64.5
0.803
–27.3
———————————————————————————————————————————
300
0.516
–80.9
10.28
123.8
0.0525
59.2
0.684
–33.8
———————————————————————————————————————————
400
0.449
–96.5
8.48
114.5
0.0609
57.0
0.597
–37.1
———————————————————————————————————————————
500
0.407
–110.4
7.13
107.0
0.0678
56.5
0.536
–38.8
———————————————————————————————————————————
600
0.376
–121.5
6.13
101.5
0.0747
56.5
0.494
–39.9
———————————————————————————————————————————
700
0.352
–131.4
5.36
96.7
0.0815
57.9
0.463
–40.4
———————————————————————————————————————————
800
0.334
–139.5
4.77
92.7
0.0882
58.7
0.441
–41.1
———————————————————————————————————————————
900
0.325
–147.9
4.28
88.9
0.0953
59.9
0.424
–41.5
———————————————————————————————————————————
1000
0.320
–154.4
3.90
85.9
0.102
60.6
0.412
–42.3
———————————————————————————————————————————