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BC237 Datasheet, PDF (2/4 Pages) Motorola, Inc – Amplifier Transistors | |||
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BC237,A,B,C BC238B,C BC239,C
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
ON CHARACTERISTICS
DC Current Gain
(IC = 10 µA, VCE = 5.0 V)
BC237A
hFE
â
â
90
â
BC237B/238B
â
150
â
BC237C/238C/239C
â
270
â
(IC = 2.0 mA, VCE = 5.0 V)
BC237
BC239
BC237A
BC237B/238B
BC237C/238C/239C
120
â
800
120
â
800
120
170
220
200
290
460
380
500
800
(IC = 100 mA, VCE = 5.0 V)
Collector â Emitter On Voltage
(IC = 10 mA, IB = 0.5 mA)
(IC = 100 mA, IB = 5.0 mA)
Base â Emitter Saturation Voltage
(IC = 10 mA, IB = 0.5 mA)
(IC = 100 mA, IB = 5.0 mA)
BaseâEmitter On Voltage
(IC = 100 µA, VCE = 5.0 V)
(IC = 2.0 mA, VCE = 5.0 V)
(IC = 100 mA, VCE = 5.0 V)
DYNAMIC CHARACTERISTICS
Current â Gain â Bandwidth Product
(IC = 0.5 mA, VCE = 3.0 V, f = 100 MHz)
BC237A
BC237B/238B
BC237C/238C/239C
â
120
â
â
180
â
â
300
â
VCE(sat)
V
BC237/BC238/BC239
â
0.07
0.2
BC237/BC239
â
0.2
0.6
BC238
0.8
VBE(sat)
V
â
0.6
0.83
â
â
1.05
VBE(on)
V
â
0.5
â
0.55
0.62
0.7
â
0.83
â
BC237
BC238
BC239
fT
MHz
â
100
â
â
120
â
â
140
â
(IC = 10 mA, VCE = 5.0 V, f = 100 MHz)
CollectorâBase Capacitance
(VCB = 10 V, IC = 0, f = 1.0 MHz)
EmitterâBase Capacitance
(VEB = 0.5 V, IC = 0, f = 1.0 MHz)
Noise Figure
(IC = 0.2 mA, VCE = 5.0 V, RS = 2.0 kâ¦,
f = 1.0 kHz)
(IC = 0.2 mA, VCE = 5.0 V, RS = 2.0 kâ¦,
f = 1.0 kHz, âf = 200 Hz)
BC237
BC238
BC239
BC239
BC237
BC238
BC239
150
200
â
150
240
â
150
280
â
Cobo
â
â
4.5
pF
Cibo
â
8.0
â
pF
NF
dB
â
2.0
4.0
â
2.0
10
â
2.0
10
â
2.0
4.0
2
Motorola SmallâSignal Transistors, FETs and Diodes Device Data
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