BC546,A,B
BC547,A,B,C
BC548,A,B,C
www.centralsemi.com
DESCRIPTION:
SILICON
The CENTRAL SEMICONDUCTOR BC546, BC547, 
NPN TRANSISTORS
BC548 series devices are silicon NPN small signal 
transistors, manufactured by the epitaxial planar 
process, designed for general purpose amplifier 
applications.
MARKING: FULL PART NUMBER
TO-92-18R CASE
MAXIMUM RATINGS: (T =25C) SYMBOL BC546 BC547 BC548 UNITS
A
Collector-Base Voltage V 80 50 30 V
CBO
Collector-Emitter Voltage V 80 50 30 V
CES
Collector-Emitter Voltage V 65 45 30 V
CEO
Emitter-Base Voltage V 6.0 6.0 5.0 V
EBO 
Continuous Collector Current I 100 mA
C
Peak Collector Current I 200 mA
CM
Peak Base Current I 200 mA
BM
Peak Emitter Current I 200 mA
EM
Power Dissipation P 500 mW
D
Operating and Storage Junction Temperature T , T -65 to +150 C
 J stg
Thermal Resistance  250 C/W
JA
Thermal Resistance  150 C/W
JC
ELECTRICAL CHARACTERISTICS: (T =25C unless otherwise noted)
A
SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
I V=30V   15 nA
CBO CB
I V =30V, T=150C   5.0 A
CBO CB A
V I =10mA, I=0.5mA   250 mV
CE(SAT) C B
V I =100mA, I=5.0mA   600 mV
CE(SAT) C B
V I =10mA, I=0.5mA  700  mV
BE(SAT) C B
V I =100mA, I=5.0mA  900  mV
BE(SAT) C B
V V =5.0V, I=2.0mA 580  700 mV
BE(ON) CE C
V V =5.0V, I=10mA   770 mV
BE(ON) CE C
h V =5.0V, I =10A (BC546,A, BC547,A, BC548,A)  90  
FE CE C
h V =5.0V, I =10A (BC546B, BC547B, BC548B)  150  
FE CE C
h V =5.0V, I =10A (BC547C, BC548C)  270  
FE CE C
h V =5.0V, I =2.0mA (BC546) 110  450 
FE CE C
h V =5.0V, I =2.0mA (BC546A, BC547A, BC548A) 110  220 
FE CE C
h V =5.0V, I =2.0mA (BC546B, BC547B, BC548B) 200  450 
FE CE C
h V =5.0V, I =2.0mA (BC547, BC548) 110  800 
FE CE C
h V =5.0V, I =2.0mA (BC547C, BC548C) 420  800 
FE CE C
h V =5.0V, I =2.0mA, f=1.0kHz 125  900 
fe CE C
f V =5.0V, I =10mA, f=35MHz  300  MHz
T CE C
C V =10V, I =0, f=1.0MHz  2.5  pF
ob CB E
C V =0.5V, I =0, f=1.0MHz  9.0  pF
ib EB C
NF V =5.0V, I =0.2mA, R=2.0k,    
CE C G
 B=200Hz, f=1.0kHz  2.0 10 dB
R1 (13-December 2013) BC546,A,B
BC547,A,B,C
BC548,A,B,C
SILICON
NPN TRANSISTORS
TO-92-18R CASE - MECHANICAL OUTLINE
LEAD CODE:
1) Collector
2) Base
3) Emitter
MARKING:
FULL PART NUMBER
R1 (13-December 2013)
www.centralsemi.com