2N2857 Ver la hoja de datos (PDF) - Unspecified
Número de pieza
componentes Descripción
Fabricante
2N2857 Datasheet PDF : 4 Pages
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Bipolar Low Noise Transistors
2N2857
Electrical Specifications @ 25°C
Parameter
Condition
Symbol
Min
Typical
Max
Units
Collector Cut-off Current
VCB = 15 volts
ICBO
IE = 0 µA
Collector-Emitter breakdown
Voltage
IC = 30 mA
BVCEO
15
10
nA
25
----
Volts
Collector-Base breakdown
Voltage
IC = 1 uA
BVCBO
30
47
Volts
Emitter-Base breakdown
Voltage
IC = 1 uA
BVEBO
3
5.5
Volts
Forward Current Gain
VCE = 1 volts
hFE
30
100
150
IC = 3 mA
Collector-Base
VCB = 10 volts
CCB
Junction Capacitance
f = 1 MHz
.6
1.0
pF (509)
Base-Emitter Voltage
IC = 10 mA
VBESAT
----
.8
1.0
Volts
Saturated
IB = 1 mA
Collector-Emitter Voltage
IC = 10 mA
VCESAT
----
.2
.4
Volts
Saturated
IB = 1 mA
Typical Scattering Parameters in the TO-72 Can Package
FREQUENCY
COLLECTOR
CURRENT
INPUT
REFLECTION
COEFFICIENT
FORWARD
TRANSMISSION
COEFFICIENT
(MHz)
(mA)
MAG ANGLE
MAG ANGLE
REVERSE
TRANSMISSION
COEFFICIENT
MAG ANGLE
OUTPUT
REFLECTION
COEFFICIENT
MAG ANGLE
1.0
.91
-26°
3.2
152°
.04
73°
.96
-11°
100
1.5
.88
-39°
3.9
149°
.04
71°
.95
-12°
3.0
.75
-48°
6.5
136°
.04
70°
.89
-15°
5.0
.67
-53°
8.2
128°
.03
69°
.84
-16°
1.0
.82
-43°
3.0
138°
.06
65°
.92
-16°
200
1.5
.77
-48°
3.6
135°
.06
65°
.92
-16°
3.0
.61
-65°
5.4
122°
.05
61°
.82
-18°
5.0
.49
-77°
6.4
114°
.04
60°
.78
-18°
1.0
.69
-64°
2.5
120°
.08
54°
.89
-21°
300
1.5
.63
-70°
3.0
117°
.07
52°
.84
-23°
3.0
.45
-89°
4.0
105°
.06
55°
.76
-22°
5.0
.37
-100°
4.5
99°
.06
58°
.72
-21°
1.0
.62
-76°
2.3
110°
.09
51°
.84
-25°
400
1.5
.56
-81°
2.6
108°
.09
50°
.81
-26°
3.0
.39
-100°
3.9
97°
.07
56°
.79
-24°
5.0
.32
-111°
3.7
91°
.06
60°
.71
-23°
1.0
.56
-80°
2.1
107°
.09
49°
.84
-26°
450
1.5
.55
-86°
2.2
102°
.08
51°
.80
-26°
3.0
.39
-104°
2.8
92°
.07
55°
.74
-25°
5.0
.32
-117°
3.4
87°
.06
60°
.72
-23°
1.0
.54
-87°
2.0
101°
.10
49°
.82
-28°
500
1.5
.49
-93°
2.2
97°
.09
50°
.78
-28°
3.0
.34
-112°
2.8
87°
.08
56°
.73
-26°
5.0
.29
-123°
3.0
83°
.07
61°
.70
-24°
1.0
.46
-102°
1.7
91°
.11
47°
.77
-31°
600
1.5
.41
-108°
1.9
88°
.10
49°
.74
-31°
3.0
.30
-126°
2.3
79°
.09
57°
.70
-28°
5.0
.26
-138°
2.5
76°
.09
63°
.68
-26°
1.0
.44
-111°
1.6
85°
.11
47°
.72
-34°
700
1.5
.38
-117°
1.8
83°
.11
50°
.72
-33°
3.0
.29
-135°
2.1
75°
.10
60°
.68
-30°
5.0
.25
-145°
2.2
79°
.09
64°
.67
-28°
Specification Subject to Change Without Notice
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