BC237 Datasheet, PDF (2/4 Pages) Motorola, Inc – Amplifier Transistors

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
—
—
90
—
BC237B/238B
—
150
—
BC237C/238C/239C
—
270
—
(IC = 2.0 mA, VCE = 5.0 V)
BC237
BC239
BC237A
BC237B/238B
BC237C/238C/239C
120
—
800
120
—
800
120
170
220
200
290
460
380
500
800
(IC = 100 mA, VCE = 5.0 V)
Collector – Emitter On Voltage
(IC = 10 mA, IB = 0.5 mA)
(IC = 100 mA, IB = 5.0 mA)
Base – Emitter Saturation Voltage
(IC = 10 mA, IB = 0.5 mA)
(IC = 100 mA, IB = 5.0 mA)
Base–Emitter 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 – Gain — Bandwidth Product
(IC = 0.5 mA, VCE = 3.0 V, f = 100 MHz)
BC237A
BC237B/238B
BC237C/238C/239C
—
120
—
—
180
—
—
300
—
VCE(sat)
V
BC237/BC238/BC239
—
0.07
0.2
BC237/BC239
—
0.2
0.6
BC238
0.8
VBE(sat)
V
—
0.6
0.83
—
—
1.05
VBE(on)
V
—
0.5
—
0.55
0.62
0.7
—
0.83
—
BC237
BC238
BC239
fT
MHz
—
100
—
—
120
—
—
140
—
(IC = 10 mA, VCE = 5.0 V, f = 100 MHz)
Collector–Base Capacitance
(VCB = 10 V, IC = 0, f = 1.0 MHz)
Emitter–Base Capacitance
(VEB = 0.5 V, IC = 0, f = 1.0 MHz)
Noise Figure
(IC = 0.2 mA, VCE = 5.0 V, RS = 2.0 kΩ,
f = 1.0 kHz)
(IC = 0.2 mA, VCE = 5.0 V, RS = 2.0 kΩ,
f = 1.0 kHz, ∆f = 200 Hz)
BC237
BC238
BC239
BC239
BC237
BC238
BC239
150
200
—
150
240
—
150
280
—
Cobo
—
—
4.5
pF
Cibo
—
8.0
—
pF
NF
dB
—
2.0
4.0
—
2.0
10
—
2.0
10
—
2.0
4.0
2
Motorola Small–Signal Transistors, FETs and Diodes Device Data