BC546 THRU BC549
Small Signal Transistors (NPN)
TO-92
.181 (4.6)
min. .492 (12.5) .181 (4.6)
.142 (3.6)
♦
NPN Silicon Epitaxial Planar Transistors
♦
These transistors are subdivided into three groups
A, B and C according to their current gain. The type
BC546 is available in groups A and B, how-
ever, the types BC547 and BC548 can be
supplied in all three groups. The BC549 is a
low-noise type and available in groups B and
C. As complementary types, the PNP transis-
tors BC556 … BC559 are recommended.
FEATURES
max.
∅
.022 (0.55)
.098 (2.5)
C
B
E
♦
On special request, these transistors are also
manufactured in the pin configuration TO-18.
MECHANICAL DATA
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
Collector-Base Voltage
BC546
BC547
BC548, BC549
BC546
BC547
BC548, BC549
BC546
BC547
BC548, BC549
BC546, BC547
BC548, BC549
V
CBO
V
CBO
V
CBO
V
CES
V
CES
V
CES
V
CEO
V
CEO
V
CEO
V
EBO
V
EBO
I
C
I
CM
I
BM
–I
EM
P
tot
T
j
T
S
Value
80
50
30
80
50
30
65
45
30
6
5
100
200
200
200
500
1)
150
–65 to +150
Unit
V
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mW
°C
°C
Collector-Emitter Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current
Peak Collector Current
Peak Base Current
Peak Emitter Current
Power Dissipation at T
amb
= 25 °C
Junction Temperature
Storage Temperature Range
1)
Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case
4/98
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