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參數(shù)資料
| 型號： | 2SC4844 |
| 元件分類： | 小信號晶體管 |
| 英文描述： | UHF BAND, Si, NPN, RF SMALL SIGNAL TRANSISTOR |
| 封裝： | 2-2K1A, 4 PIN |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 251K |
| 代理商： | 2SC4844 |
2SC4844
2003-03-19
1
TOSHIBA Transistor Silicon NPN Epitaxial Planar Type
2SC4844
VHF~UHF Band Low Noise Amplifier Applications
Low noise figure, high gain.
NF = 1.8dB, |S21e|2 = 9.5dB (f = 2 GHz)
Maximum Ratings (Ta
==== 25°C)
Characteristics
Symbol
Rating
Unit
Collector-base voltage
VCBO
20
V
Collector-emitter voltage
VCEO
10
V
Emitter-base voltage
VEBO
1.5
V
Base current
IB
7
mA
Collector current
IC
15
mA
Collector power dissipation
PC
100
mW
Junction temperature
Tj
125
°C
Storage temperature range
Tstg
-55~125
°C
Microwave Characteristics (Ta
==== 25°C)
Characteristics
Symbol
Test Condition
Min
Typ.
Max
Unit
Transition frequency
fT
VCE = 6 V, IC = 7 mA
7
10
GHz
S21e
2 (1)
VCE = 6 V, IC = 7 mA, f = 1 GHz
15
Insertion gain
S21e
2 (2)
VCE = 6 V, IC = 7 mA, f = 2 GHz
6.5
9.5
dB
NF (1)
VCE = 6 V, IC = 3 mA, f = 1 GHz
1.4
Noise figure
NF (2)
VCE = 6 V, IC = 3 mA, f = 2 GHz
1.8
3.0
dB
Electrical Characteristics (Ta
==== 25°C)
Characteristics
Symbol
Test Condition
Min
Typ.
Max
Unit
Collector cut-off current
ICBO
VCB = 10 V, IE = 0
1
mA
Emitter cut-off current
IEBO
VEB = 1 V, IC = 0
1
mA
DC current gain
hFE
VCE = 6 V, IC = 7 mA
50
250
Output capacitance
Cob
0.55
pF
Reverse transfer capacitance
Cre
VCB = 10 V, IE = 0, f = 1 MHz
(Note)
0.35
0.8
pF
Note: Cre is measured by 3 terminal method with capacitance bridge.
Unit: mm
JEDEC
―
JEITA
―
TOSHIBA
2-2K1A
Weight: 0.006 g (typ.)
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