BC556,B BC557A,B,C BC558B
ELECTRICAL CHARACTERISTICS
(TA = 25°C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
ON CHARACTERISTICS
DC Current Gain
(IC = –10
µAdc,
VCE = –5.0 V)
hFE
BC557A
BC556B/557B/558B
BC557C
BC556
BC557
BC558
BC557A
BC556B/557B/558B
BC557C
BC557A
BC556B/557B/558B
BC557C
VCE(sat)
—
—
—
VBE(sat)
—
—
VBE(on)
–0.55
—
–0.62
–0.7
–0.7
–0.82
–0.7
–1.0
—
—
V
–0.075
–0.3
–0.25
–0.3
–0.6
–0.65
V
—
—
—
120
120
120
120
180
420
—
—
—
90
150
270
—
—
—
170
290
500
120
180
300
—
—
—
500
800
800
220
460
800
—
—
—
V
—
(IC = –2.0 mAdc, VCE = –5.0 V)
(IC = –100 mAdc, VCE = –5.0 V)
Collector – Emitter Saturation Voltage
(IC = –10 mAdc, IB = –0.5 mAdc)
(IC = –10 mAdc, IB = see Note 1)
(IC = –100 mAdc, IB = –5.0 mAdc)
Base – Emitter Saturation Voltage
(IC = –10 mAdc, IB = –0.5 mAdc)
(IC = –100 mAdc, IB = –5.0 mAdc)
Base–Emitter On Voltage
(IC = –2.0 mAdc, VCE = –5.0 Vdc)
(IC = –10 mAdc, VCE = –5.0 Vdc)
SMALL–SIGNAL CHARACTERISTICS
Current – Gain — Bandwidth Product
(IC = –10 mA, VCE = –5.0 V, f = 100 MHz)
fT
BC556
BC557
BC558
Cob
NF
BC556
BC557
BC558
hfe
BC556
BC557/558
BC557A
BC556B/557B/558B
BC557C
125
125
125
240
450
—
—
220
330
600
500
900
260
500
900
—
—
—
2.0
2.0
2.0
10
10
10
—
—
—
—
—
280
320
360
3.0
—
—
—
6.0
pF
dB
MHz
Output Capacitance
(VCB = –10 V, IC = 0, f = 1.0 MHz)
Noise Figure
(IC = –0.2 mAdc, VCE = –5.0 V,
RS = 2.0 k
W
, f = 1.0 kHz,
∆f
= 200 Hz)
Small–Signal Current Gain
(IC = –2.0 mAdc, VCE = –5.0 V, f = 1.0 kHz)
Note 1: IC = –10 mAdc on the constant base current characteristics, which yields the point IC = –11 mAdc, VCE = –1.0 V.
2
Motorola Small–Signal Transistors, FETs and Diodes Device Data
MOTOROLA [ MOTOROLA, INC ]
