BC547B
BC547C
SMALL SIGNAL NPN TRANSISTORS
s
SILICON EPITAXIAL PLANAR NPN
TRANSISTORS
s
TO-92 PACKAGE SUITABLE FOR
THROUGH-HOLE PCB ASSEMBLY
s
BC547B - THE PNP COMPLEMENTARY
TYPE IS BC557B
s
APPLICATIONS
s
WELL SUITABLE FOR TV AND HOME
APPLIANCE EQUIPMENT
s
SMALL LOAD SWITCH TRANSISTORS
WITH HIGH GAIN AND LOW SATURATION
VOLTAGE
INTERNAL SCHEMATIC DIAGRAM
March 2003
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CBO
Collector-Base Voltage (I
E
= 0)
50
V
V
CEO
Collector-Emitter Voltage (I
B
= 0)
45
V
V
EBO
Emitter-Base Voltage (I
C
= 0)
6
V
I
C
Collector Current
100
mA
I
CM
Collector Peak Current (t
p
< 5 ms)
200
mA
P
tot
Total Dissipation at T
C
= 25
o
C
500
mW
T
stg
Storage Temperature
-65 to 150
o
C
T
j
Max. Operating Junction Temperature
150
o
C
TO-92
Bulk
TO-92
Ammopack
Ordering Code
Marking
Package / Shipment
BC547B
BC547B
TO-92 / Bulk
BC547B-AP
BC547B
TO-92 / Ammopack
BC547C
BC547C
TO-92 / Bulk
BC547C-AP
BC547C
TO-92 / Ammopack
1/5
THERMAL DATA
R
thj-amb
R
thj-Case
Thermal Resistance Junction-Ambient Max
Thermal Resistance Junction-Case Max
250
83.3
o
C/W
o
C/W
ELECTRICAL CHARACTERISTICS (T
case
= 25
o
C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
CBO
Collector Cut-off
Current (I
E
= 0)
V
CB
= 30 V
V
CB
= 30 V T
C
= 150
o
C
15
5
nA
A
I
EBO
Emitter Cut-off Current
(I
C
= 0)
V
EB
= 5 V
100
nA
V
(BR)CEO
Collector-Emitter
Breakdown Voltage
(I
B
= 0)
I
C
= 10 mA
45
V
V
CE(sat)
Collector-Emitter
Saturation Voltage
I
C
= 10 mA I
B
= 0.5 mA
I
C
= 100 mA I
B
= 5 mA
0.09
0.2
0.25
0.6
V
V
V
BE(sat)
Base-Emitter
Saturation Voltage
I
C
= 10 mA I
B
= 0.5 mA
I
C
= 100 mA I
B
= 5 mA
0.7
0.9
V
V
V
BE(on)
Base-Emitter On
Voltage
I
C
= 2 mA V
CE
= 5 V
I
C
= 10 mA V
CE
= 5 V
0.58
0.66
0.7
0.77
V
V
h
FE
DC Current Gain
I
C
= 2 mA V
CE
= 5 V
for BC547B
for BC547C
200
420
450
800
f
T
Transition Frequency
I
C
= 10 mA V
CE
= 5 V f = 100MHz
100
MHz
C
CBO
Collector-Base
Capacitance
I
E
= 0 V
CB
= 10 V f = 1 MHz
1.5
pF
C
EBO
Emitter-Base
Capacitance
I
C
= 0 V
EB
= 0.5 V f = 1 MHz
11
pF
NF
Noise Figure
V
CE
= 5 V I
C
= 200
A f = 1KHz
f = 200 Hz R
G
= 2 K
2
10
dB
Pulsed: Pulse duration = 300
s, duty cycle
2 %
BC547B / BC547C
2/5
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
4.32
4.95
0.170
0.195
b
0.36
0.51
0.014
0.020
D
4.45
4.95
0.175
0.194
E
3.30
3.94
0.130
0.155
e
2.41
2.67
0.095
0.105
e1
1.14
1.40
0.045
0.055
L
12.70
15.49
0.500
0.609
R
2.16
2.41
0.085
0.094
S1
1.14
1.52
0.045
0.059
W
0.41
0.56
0.016
0.022
V
4 degree
6 degree
4 degree
6 degree
TO-92 MECHANICAL DATA
BC547B / BC547C
3/5
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A1
4.80
0.189
T
3.80
0.150
T1
1.60
0.063
T2
2.30
0.091
d
0.48
0.019
P0
12.50
12.70
12.90
0.492
0.500
0.508
P2
5.65
6.35
7.05
0.222
0.250
0.278
F1,F2
2.44
2.54
2.94
0.096
0.100
0.116
delta H
-2.00
2.00
-0.079
0.079
W
17.50
18.00
19.00
0.689
0.709
0.748
W0
5.70
6.00
6.30
0.224
0.236
0.248
W1
8.50
9.00
9.25
0.335
0.354
0.364
W2
0.50
0.020
H
18.50
20.50
0.728
0.807
H0
15.50
16.00
16.50
0.610
0.630
0.650
H1
25.00
0.984
D0
3.80
4.00
4.20
0.150
0.157
0.165
t
0.90
0.035
L
11.00
0.433
I1
3.00
0.118
delta P
-1.00
1.00
-0.039
0.039
TO-92 AMMOPACK SHIPMENT (Suffix"-AP") MECHANICAL DATA
BC547B / BC547C
4/5
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a trademark of STMicroelectronics
2003 STMicroelectronics Printed in Italy All Rights Reserved
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BC547B / BC547C
5/5
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