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參數(shù)資料
| 型號(hào)： | 2N2857UB |
| 廠商： | Semicoa Semiconductor |
| 英文描述： | Type 2N2857UB Geometry 0011 Polarity NPN |
| 中文描述： | 類型2N2857UB幾何0011極性npn型 |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大?。?/td> | 19K |
| 代理商： | 2N2857UB |
Parameter
Collector – Base Breakdown Voltage
Collector – Emitter Breakdown Voltage
Emitter – Base Breakdown Voltage
Test Conditions
I
C
= 1
μ
A
I
C
= 3mA
I
E
= 10
μ
A
V
CB
= 15V
I
E
= 0
I
C
= 10mA
I
B
= 1mA
V
CE
= 1V
I
C
= 3mA
V
CB
= 16V
V
CE
= 6V
f = 450MHz
V
CE
= 6V
V
CE
= 6V
f = 100MHz
V
CB
= 10V
f = 0.1 to 1 MHz
V
CE
= 6V
f = 450MHz
V
CE
= 6V
f = 31.9MHz
Min.
30
15
2.5
Typ.
Max.
Unit
V
μ
A
V
—
nA
dB
—
—
pF
dB
ps
50
1
0.4
1
0.5
30
10
100
4.5
50
220
10
21
1
12.5
21
4.0
15
I
E
= 0
I
B
= 0
I
C
= 0
T
A
= –55°C
T
A
= 150°C
I
B
= 0
I
C
= 1.5mA
R
G
= 50
I
C
= 2mA
I
C
= 5mA
I
E
= 0
I
C
= 1.50mA
I
E
= 2mA
2N2857CSM
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 7/95
LAB
SEME
ELECTRICAL CHARACTERISTICS
(TA= 25°C unless otherwise stated)
V
(BR)CBO*
V
(BR)CEO
V
(BR)EBO
I
CBO
Collector – Base Cut-off Current
V
CE(sat)
V
BE(sat)
Collector – Emitter Saturation Voltage
Base – Emitter Saturation Voltage
h
FE
DC Current Gain
I
CES
Collector – Emitter Cut-off Current
NF
Noise Figure
h
fe
Small Signal Current Gain
| h
fe
|
Magnitude of h
fe
C
cb
Collector – Base Feedback
Capacitance
G
pe
Small Signal Power Gain
r
b
’C
c
Collector – Base Time Constant
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