2SC4905 [ETC]
;
| 型号： | 2SC4905 |
| 厂家： | 
ETC |
| 描述： | 晶体 晶体管 光电二极管 放大器 |
| 文件： | 总6页 (文件大小：40K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
2SC4905
Silicon NPN Bipolar Transistor
Application
CMPAK
VHF & UHF wide band amplifire
Features
3
1
• High gain bandwidth product
2
f = 5.8 GHz typ
T
• High gain, low noise figure
PG = 12.0 dB typ,
NF = 1.6 dB typ at f = 900 MHz
1. Emitter
2. Base
3. Collector
Table 1 Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
Ratings
Unit
———————————————————————————————————————————
Collector to base voltage
V
20
V
CBO
———————————————————————————————————————————
Collector to emitter voltage
V
12
V
CEO
———————————————————————————————————————————
Emitter to base voltage
V
2
V
EBO
———————————————————————————————————————————
Collector current
I
50
mA
C
———————————————————————————————————————————
Collector power dissipation
P
100
mW
C
———————————————————————————————————————————
Junction temperature
T
150
°C
j
———————————————————————————————————————————
Storage temperature
Tstg
–55 to +150
°C
———————————————————————————————————————————
2SC4905
Table 2 Electrical Characteristics (Ta = 25°C)
Item
Symbol
Min
Typ
Max
Unit
Test conditions
———————————————————————————————————————————
Collector to base
V
20
—
—
V
I = 10 µA, I = 0
(BR)CBO
C E
breakdown voltage
———————————————————————————————————————————
Collector cutoff current
I
—
—
10
µA
V
= 15 V,
CBO
CB
I = 0
E
——————————————————————————————
I
—
—
1
mA
V
= 12 V,
CEO
CE
R
= ∞
BE
———————————————————————————————————————————
Emitter cutoff current
I
—
—
10
µA
V
= 2 V,
EBO
EB
I
= 0
C
———————————————————————————————————————————
DC current transfer ratio
h
50
120
250
V
= 5 V,
FE
CE
I
= 20 mA
C
———————————————————————————————————————————
Output capacitance
Cob
—
0.8
1.2
pF
V
= 5 V,
CB
I = 0, f = 1 MHz
E
———————————————————————————————————————————
Gain bandwidth
f
4
5.8
—
GHz
V
= 5 V,
T
CE
product
I
= 20 mA
C
———————————————————————————————————————————
Power gain
PG
9.5
12.0
—
dB
V
= 5 V,
CE
I
= 20 mA,
C
f = 900 MHz
———————————————————————————————————————————
Noise figure
NF
—
1.6
3.0
dB
V
= 5 V,
CE
I
= 5 mA,
C
f = 900 MHz
———————————————————————————————————————————
Marking for 2SC4905 is “YM–”.
2SC4905
DC current transfer ratio
vs. collector current
Maximum collector power dissipation curve
200
200
160
120
80
V
CE
= 5V
150
100
50
40
0
0.1 0.2 0.5
1
2
5
10 20 50
0
50
100
150
200
Ambient Temperature Ta (°C)
Collector Current I (mA)
C
Collector output capacitance
vs. collector to base voltage
Gain bandwidth product vs. collector current
10
1.6
1.4
1.2
1.0
I
= 0
E
V
= 5 V
CE
f = 1 MHz
8
6
4
2
0
0.8
0.6
1
2
5
10
20
50
0.5
1
2
5
10
20
Collector to Base Voltage V
(V)
Collector Current I (mA)
CB
C
2SC4905
Power gain vs. collector current
Noise figure vs. collector current
20
16
12
8
5
4
3
2
V
= 5V
CE
V
= 5V
CE
f = 900MHz
f = 900 MHz
4
0
1
0
1
1
2
5
10
20
50
2
5
10
20
50
Collector Current I (mA)
Collector Current I (mA)
C
C
S21 parameter vs. collector current
20
16
12
8
V
= 5V
CE
f = 1 GHz
4
0
1
2
5
10
20
(mA)
50
Collector Current
I
C
2SC4905
S11 parameter vs. frequency
S21 parameter vs. frequency
Scale: 6 / div.
1
90°
.8
1.5
.6
120°
60°
2
.4
3
150°
30°
4
5
.2
10
.2
.4 .6
1
1.52
10
3
5
4
0°
0
180°
–10
–5
–.2
–4
–30°
–150°
–3
–.4
–2
–60°
–120°
–.6
–1.5
–.8
–1
–90°
Ω
Condition: V = 5 V , Zo = 50
CE
Ω
Condition: V = 5 V , Zo = 50
CE
100 MHz to 1000 MHz (100 MHz step)
(I = 5 mA)
100 MHz to 1000 MHz (100 MHz step)
C
(I = 5 mA)
C
(I = 20 mA)
C
(I = 20 mA)
C
S12 parameter vs. frequency
S22 parameter vs. frequency
Scale: 0.04 / div.
1
.8
90°
1.5
.6
120°
60°
2
.4
3
150°
30°
4
.2
5
10
.4
.8
1.5
10
.2
.6
1
2
3
4
5
0
0°
180°
–10
–5
–.2
–4
–30°
–150°
–3
–.4
–2
–120°
–.6
–60°
–1.5
–.8
–1
–90°
Ω
Condition: V = 5 V , Zo = 50
Ω
Condition: V = 5 V , Zo = 50
CE
CE
100 MHz to 1000 MHz (100 MHz step)
(IC = 5 mA)
100 MHz to 1000 MHz (100 MHz step)
(I = 5 mA)
C
C
(I = 20 mA)
(I = 20 mA)
C
2SC4905
Table 3 S Parameter (V = 5 V, I = 5 mA, Z = 50 Ω, Emitter common)
CE
C
O
S11
S21
S12
S22
———————
———————
———————
———————
f (MHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
———————————————————————————————————————————
100
0.811
–38.9
13.42
153.8
0.0340
70.7
0.914
–20.1
———————————————————————————————————————————
200
0.706
–71.5
10.97
133.5
0.0568
56.8
0.757
–33.9
———————————————————————————————————————————
300
0.614
–95.7
8.65
119.3
0.0698
49.9
0.623
–41.6
———————————————————————————————————————————
400
0.560
–113.0
7.04
109.9
0.0783
47.1
0.532
–45.6
———————————————————————————————————————————
500
0.528
–126.6
5.87
102.7
0.0843
46.0
0.471
–48.0
———————————————————————————————————————————
600
0.508
–137.5
5.02
97.0
0.0897
46.7
0.428
–49.3
———————————————————————————————————————————
700
0.492
–145.5
4.39
92.4
0.0946
47.4
0.399
–50.6
———————————————————————————————————————————
800
0.485
–153.4
3.90
88.2
0.0999
48.3
0.376
–51.7
———————————————————————————————————————————
900
0.480
–160.2
3.50
84.5
0.106
50.0
0.360
–52.8
———————————————————————————————————————————
1000
0.472
–165.2
3.19
81.5
0.112
51.8
0.348
–53.9
———————————————————————————————————————————
Table 4 S Parameter (V = 5 V, I = 20 mA, Z = 50 Ω, Emitter common)
CE
C
O
S11
S21
S12
S22
———————
———————
———————
———————
f (MHz)
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
———————————————————————————————————————————
100
0.572
–75.3
26.66
135.0
0.0254
61.6
0.727
–36.9
———————————————————————————————————————————
200
0.497
–116.5
17.02
114.0
0.0361
55.7
0.483
–49.9
———————————————————————————————————————————
300
0.458
–138.3
11.90
103.4
0.0446
57.1
0.362
–53.4
———————————————————————————————————————————
400
0.448
–150.9
9.13
97.1
0.0530
59.8
0.300
–53.9
———————————————————————————————————————————
500
0.439
–160.1
7.39
92.1
0.0618
62.4
0.264
–53.7
———————————————————————————————————————————
600
0.444
–167.3
6.21
88.3
0.0705
64.4
0.242
–53.5
———————————————————————————————————————————
700
0.436
–171.9
5.37
85.2
0.0799
66.0
0.228
–53.8
———————————————————————————————————————————
800
0.442
–176.5
4.73
82.2
0.0892
66.8
0.217
–53.9
———————————————————————————————————————————
900
0.440
178.0
4.23
79.5
0.0988
67.5
0.210
–54.4
———————————————————————————————————————————
1000
0.443
174.9
3.82
77.1
0.108
68.2
0.205
–55.2
———————————————————————————————————————————
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