ETC 2SC4906

2SC4906
Silicon NPN Bipolar Transistor
Application
CMPAK
VHF & UHF wide band amplifire
Features
3
1
• High gain bandwidth product
fT = 5.8 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
50
mA
———————————————————————————————————————————
Collector power dissipation
PC
100
mW
———————————————————————————————————————————
Junction temperature
Tj
150
°C
———————————————————————————————————————————
Storage temperature
Tstg
–55 to +150
°C
———————————————————————————————————————————
2SC4906
Table 2 Electrical Characteristics (Ta = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Test conditions
———————————————————————————————————————————
Collector to base
breakdown voltage
V(BR)CBO
20
—
—
V
IC = 10 µA,
IE = 0
———————————————————————————————————————————
Collector cutoff current
ICBO
—
—
1
µA
VCB = 15 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 = 20 mA
———————————————————————————————————————————
Output capacitance
Cob
—
0.9
1.4
pF
VCB = 5 V,
IE = 0, f = 1 MHz
———————————————————————————————————————————
Gain bandwidth
product
fT
4
5.8
—
GHz
VCE = 5 V,
IC = 20 mA
———————————————————————————————————————————
Power gain
PG
9.5
12.0
—
dB
VCE = 5 V,
IC = 20 mA,
f = 900 MHz
———————————————————————————————————————————
Noise figure
NF
—
1.6
3.0
dB
VCE = 5 V,
IC = 5 mA,
f = 900 MHz
———————————————————————————————————————————
Marking for 2SC4906 is “YN–”.
2SC4906
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
50
100
150
Ambient Temperature Ta (°C)
80
40
0
0.1 0.2
200
Collector Output Capacitance Cob (pF)
Gain Bandwidth Product f T (GHz)
VCE = 5 V
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
10
0.5 1 2
5 10 20
Collector Current I C (mA)
1.6
IE = 0
f = 1 MHz
1.4
1.2
1.0
0.8
0.6
0.5
1
2
5
10
20
Collector to Base Voltage V CB (V)
2SC4906
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
3
2
1
0
0
1
2
5
10
20
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
20
5
10
2
Collector Current I C (mA)
50
2SC4906
S21 parameter vs. frequency
Scale: 5 / div.
90°
120°
60°
S11 parameter vs. frequency
.8
.6
1
1.5
2
.4
3
150°
4
5
.2
30°
10
.2
0
.4
.6
1
1.5 2
10
3 45
0°
180°
–10
–5
–4
–3
–.2
–.4
–30°
–150°
–2
–.6
–.8 –1
–90°
Condition: VCE = 5 V , Zo = 50 Ω
100 to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 20 mA)
Condition: VCE= 5 V , Zo = 50 Ω
100 to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 20 mA)
S22 parameter vs. frequency
S12 parameter vs. frequency
90°
120°
–60°
–120°
–1.5
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 MHz (100 MHz step)
(I C = 5 mA)
(I C = 20 mA)
–2
–.6
–.8
–1
–1.5
Condition: VCE = 5 V , Zo = 50 Ω
100 to 1000 MHz (100 MHz step)
(I C = 5 mA)
(I C = 20 mA)
2SC4906
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
0.813
–37.6
12.67
153.5
0.0354
71.0
0.912
–19.4
———————————————————————————————————————————
200
0.693
–69.6
10.22
132.5
0.0587
57.7
0.756
–32.9
———————————————————————————————————————————
300
0.591
–93.5
8.04
118.3
0.0727
51.0
0.623
–39.9
———————————————————————————————————————————
400
0.534
–111.3
6.54
108.7
0.0812
48.7
0.536
–43.6
———————————————————————————————————————————
500
0.492
–124.9
5.44
101.4
0.0880
48.2
0.477
–45.6
———————————————————————————————————————————
600
0.471
–135.5
4.66
95.8
0.0943
48.8
0.437
–46.6
———————————————————————————————————————————
700
0.453
–144.9
4.07
91.0
0.100
49.9
0.408
–47.5
———————————————————————————————————————————
800
0.445
–153.1
3.61
86.5
0.107
51.2
0.388
–48.7
———————————————————————————————————————————
900
0.438
–160.1
3.25
82.6
0.114
52.9
0.373
–49.7
———————————————————————————————————————————
1000
0.429
–166.4
2.96
79.2
0.120
54.3
0.362
–50.9
———————————————————————————————————————————
Table 4 S Parameter (VCE = 5 V, IC = 20 mA, ZO = 50 Ω, Emitter common)
f (MHz)
S11
S21
S12
S22
———————
———————
———————
———————
MAG
MAG
MAG
MAG
ANG
ANG
ANG
ANG
———————————————————————————————————————————
100
0.583
–68.6
24.42
135.9
0.0274
63.1
0.741
–34.5
———————————————————————————————————————————
200
0.463
–108.7
15.65
114.4
0.0399
57.0
0.502
–46.7
———————————————————————————————————————————
300
0.416
–132.2
10.99
103.4
0.0500
59.1
0.382
–49.6
———————————————————————————————————————————
400
0.396
–147.6
8.46
96.8
0.0596
61.8
0.320
–49.8
———————————————————————————————————————————
500
0.388
–156.9
6.85
91.9
0.0699
63.3
0.285
–49.3
———————————————————————————————————————————
600
0.385
–163.6
5.77
87.9
0.0798
65.3
0.263
–48.9
———————————————————————————————————————————
700
0.379
–170.3
4.97
84.5
0.0908
66.6
0.249
–49.1
———————————————————————————————————————————
800
0.383
–175.8
4.37
81.2
0.102
67.4
0.238
–49.2
———————————————————————————————————————————
900
0.389
179.2
3.92
78.1
0.113
68.1
0.231
–49.8
———————————————————————————————————————————
1000
0.380
174.7
3.55
75.6
0.123
68.4
0.226
–51.2
———————————————————————————————————————————