Bc545

BC546 THRU BC549
Small Signal Transistors (NPN)
TO-92

FEATURES

.142 (3.6)

min. .492 (12.5) .181 (4.6)

.181 (4.6)

♦ NPN Silicon Epitaxial Planar Transistors
♦ These transistors aresubdivided into three groups
A, B and C according to their current gain. The type
BC546 is available in groups A and B, however, the types BC547 and BC548 can be
supplied in all three groups. TheBC549 is a
low-noise type and available in groups B and
C. As complementary types, the PNP transistors BC556 … BC559 are recommended.

max. ∅ .022 (0.55)

♦ On special request, these transistorsare also

.098 (2.5)

manufactured in the pin configuration TO-18.

E

C

MECHANICAL DATA

B

Case: TO-92 Plastic Package
Weight: approx. 0.18 g

Dimensions in inches and (millimeters)MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified

Symbol

Value

Unit

Collector-Base Voltage

BC546
BC547
BC548, BC549VCBO
VCBO
VCBO

80
50
30

V
V
V

Collector-Emitter Voltage

BC546
BC547
BC548, BC549

VCES
VCES
VCES

80
50
30

V
V
V

Collector-Emitter Voltage

BC546
BC547
BC548,BC549

VCEO
VCEO
VCEO

65
45
30

V
V
V

Emitter-Base Voltage

BC546, BC547
BC548, BC549

VEBO
VEBO

6
5

V
V

Collector Current

IC

100

mA

Peak CollectorCurrent

ICM

200

mA

Peak Base Current

IBM

200

mA

Peak Emitter Current

–IEM

200

mA

Power Dissipation at Tamb = 25 °C

Ptot

5001)

mW

Junction Temperature

Tj150

°C

Storage Temperature Range

TS

–65 to +150

°C

1)

4/98

Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case

BC546 THRU BC549ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified

Symbol

Min.

Typ.

Max.

Unit

hfe
hfe
hfe
hie
hie
hie
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hoe
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–
–
–
1.6
3.2...