BC546, B BC547, A, B, C BC548, A, B, C

2

Motorola Small–Signal Transistors, FETs and Diodes Device Data

Characteristic

Symbol

Min

Typ

Max

Unit

ON CHARACTERISTICS

DC Current Gain

(IC = 10 µA, VCE = 5.0 V)

BC547A/548A

BC546B/547B/548B

BC548C

(IC = 2.0 mA, VCE = 5.0 V)

BC546

BC547

BC548

BC547A/548A

BC546B/547B/548B

BC547C/BC548C

(IC = 100 mA, VCE = 5.0 V)

BC547A/548A

BC546B/547B/548B

BC548C

hFE

—

—

—

110

110

110

110

200

420

—

—

—

90

150

270

—

—

—

180

290

520

120

180

300

—

—

—

450

800

800

220

450

800

—

—

—

—

Collector – Emitter Saturation Voltage

(IC = 10 mA, IB = 0.5 mA)

(IC = 100 mA, IB = 5.0 mA)

(IC = 10 mA, IB = See Note 1)

VCE(sat)

—

—

—

0.09

0.2

0.3

0.25

0.6

0.6

V

Base – Emitter Saturation Voltage

(IC = 10 mA, IB = 0.5 mA)

VBE(sat)

—

0.7

—

V

Base–Emitter On Voltage

(IC = 2.0 mA, VCE = 5.0 V)

(IC = 10 mA, VCE = 5.0 V)

VBE(on)

0.55

—

—

—

0.7

0.77

V

SMALL–SIGNAL CHARACTERISTICS

Current – Gain — Bandwidth Product

(IC = 10 mA, VCE = 5.0 V, f = 100 MHz)

BC546

BC547

BC548

fT

150

150

150

300

300

300

—

—

—

MHz

Output Capacitance

(VCB = 10 V, IC = 0, f = 1.0 MHz)

Cobo

—

1.7

4.5

pF

Input Capacitance

(VEB = 0.5 V, IC = 0, f = 1.0 MHz)

Cibo

—

10

—

pF

Small–Signal Current Gain

(IC = 2.0 mA, VCE = 5.0 V, f = 1.0 kHz)

BC546

BC547/548

BC547A/548A

BC546B/547B/548B

BC547C/548C

hfe

125

125

125

240

450

—

—

220

330

600

500

900

260

500

900

—

Noise Figure

(IC = 0.2 mA, VCE = 5.0 V, RS = 2 kW,

BC546

f = 1.0 kHz,

∆f = 200 Hz)

BC547

BC548

NF

—

—

—

2.0

2.0

2.0

10

10

10

dB

Note 1: IB is value for which IC = 11 mA at VCE = 1.0 V.