BC547B
BC547C
SMALL SIGNAL NPN TRANSISTORS
■SILICO N EP ITA X IAL PLANA R NP N
TRANSISTORS
■TO-92 PACKAGE SUITABLE FOR
TH ROUGH- HOLE PCB ASSEMBLY
■BC547B - THE PNP COMPLEMENTARY
TYPE IS BC557B
■
APPLICATIONS
■WELL SU ITAB LE FO R TV AND HOME
APPLIANCE EQUIPMENT
■SMALL LOAD SWITCH TRANSISTORS
WI TH HIGH G AIN AND LO W SA TUR ATION
VOLTAGE
®
INT E R NAL SCH E M ATI C DIAG RA M
June 2002
Type Marking
BC547B BC547B
BC547C BC547C
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VCBO Collector-Base Voltage (IE = 0) 50 V
VCEO Collector-Emitter Voltage (IB = 0) 45 V
VEBO Emitter-Base Voltage (IC = 0) 6 V
ICCollector Current 100 m A
ICM Collector Peak Current 200 m A
Ptot Total Dissipation at TC = 25 oC 500 mW
Tstg Storage Temperature -65 to 150 oC
TjMax. Operating Junction Temperature 150 oC
TO-92
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THERMAL DATA
Rthj-amb •
Rthj-Case •Thermal Resistance Junction-Ambient M ax
Thermal Resistance Junction-Case Max 250
83.3
oC/W
oC/W
ELE CT RICAL CHAR ACT ERISTI CS (Tcase = 25 oC unless otherwise specified)
Symbol Pa rameter Test Conditions Min. Typ. Max. Unit
ICBO Collector Cut-off
Current (IE = 0) VCE = 30 V
VCE = 30 V TC = 150 oC15
5nA
µA
IEBO Emitter Cut-off Current
(IC = 0) VEB = 5 V 100 nA
V(BR)CEO∗Collector-Emitter
Breakdown Voltage
(IB = 0)
IC = 10 mA 50 V
VCE(sat)∗Collector-Emitter
Saturation Voltage IC = 10 mA IB = 0.5 mA
IC = 100 mA IB = 5 mA 0.09
0.2 0.25
0.6 V
V
VBE(sat)∗Base-Emitter
Saturation Voltage IC = 10 mA IB = 0.5 mA
IC = 100 mA IB = 5 mA 0.7
0.9 V
V
hFE DC Current Gain IC = 2 mA VCE = 5 V
for BC547B
for BC547C 200
420 450
800
fTTransition Frequency IC = 10 mA VCE = 5 V f = 100MHz 100 MHz
CCBO Collector-Base
Capacitance IE = 0 VCB = 10 V f = 1 MHz 1.5 pF
CEBO Emitter-Base
Capacitance IC = 0 VEB = 0.5 V f = 1 MHz 11 pF
NF Noise Figure VCE = 5 V IC = 200 µA f = 1 KHz
∆f = 200 Hz RG = 2 KΩ210dB
∗ P ulsed: P ulse duration = 300 µs, d uty cy cle ≤ 2 %
BC547B / BC547C
2/4
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-9 2 MEC HANICAL DAT A
BC547B / BC547C
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequ ences
of use of such inform ation nor for any infringe ment o f patents or other rig hts o f th ird par ties wh ich may re sult from its use . N o l i cen se i s
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specif ication mentioned in this publication are
subject to change without notice. This publication supersedes and r eplac es all information previously supplie d. STMicroelectronics products
ar e not aut horized for use as critical compo nents in life support devices or systems without express written approval of STMicroelectronics.
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BC547B / BC547C
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