© 2002 Fairchild Semiconductor Corporation

www.fairchildsemi.com

BC546 / BC547 / BC548 / BC549 / BC550 Rev. 1.1.1

2

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.

Electrical Characteristics

Values are at TA = 25°C unless otherwise noted.

hFE Classification

Symbol

Parameter

Value

Unit

VCBO

Collector-Base Voltage

BC546

80

V

BC547 / BC550

50

BC548 / BC549

30

VCEO

Collector-Emitter Voltage

BC546

65

V

BC547 / BC550

45

BC548 / BC549

30

VEBO

Emitter-Base Voltage

BC546 / BC547

6

V

BC548 / BC549 / BC550

5

IC

Collector Current (DC)

100

mA

PC

Collector Power Dissipation

500

mW

TJ

Junction Temperature

150

°C

TSTG

Storage Temperature Range

-65 to +150

°C

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

ICBO

Collector Cut-Off Current

VCB = 30 V, IE = 0

15

nA

hFE

DC Current Gain

VCE = 5 V, IC = 2 mA

110

800

VCE(sat)

Collector-Emitter Saturation

Voltage

IC = 10 mA, IB = 0.5 mA

90

250

mV

IC = 100 mA, IB = 5 mA

250

600

VBE(sat)

Base-Emitter Saturation Voltage

IC = 10 mA, IB = 0.5 mA

700

mV

IC = 100 mA, IB = 5 mA

900

VBE(on)

Base-Emitter On Voltage

VCE = 5 V, IC = 2 mA

580

660

700

mV

VCE = 5 V, IC = 10 mA

720

fT

Current Gain Bandwidth Product

VCE = 5 V, IC = 10 mA,

f = 100 MHz

300

MHz

Cob

Output Capacitance

VCB = 10 V, IE = 0, f = 1 MHz

3.5

6.0

pF

Cib

Input Capacitance

VEB = 0.5 V, IC = 0, f = 1 MHz

9

pF

NF

Noise

Figure

BC546 / BC547 / BC548 V

CE = 5 V, IC = 200 μA,

f = 1 kHz, RG = 2 kΩ

2.0

10.0

dB

BC549 / BC550

1.2

4.0

BC549

VCE = 5 V, IC = 200 μA,

RG = 2 kΩ, f = 30 to 15000 MHz

1.4

4.0

BC550

1.4

3.0

Classification

A

B

C

hFE

110 ~ 220

200 ~ 450

420 ~ 800