Collector Base Voltage
Storge Temperature Tstg
mW
Tamb = 25 oC
Total power dissipation up to Ptot
mA
Base Current - Peak IBM
Thermal Resistance
Junction Temperature Tj
From junction to ambient Rth(j-a)
DESCRIPTION SYMBOL UNITS
Collector Emmitter Voltage (VBE = 0V)
V
V80 50 30
VCBO
V
V
IEM
ICmA
ICM
mA
66
500
-55 to +150 oC
150 oC
oC/W
250
BC546
200
100
200
65 45
BC547 BC548
30
80 30
200
VCES
Collector Emitter Voltage VCEO
50
Emitter Base Voltage VEBO
Emitter Current - Peak
Collector Current (DC)
Collector Current - Peak
5
NPN Silicon Planar Epitaxial Transistors
BC546
BC547
BC548
Absolute Maximum Ratings (Ta = 25 oC unless specified otherwise)
TO-92 SMD Package
2
3
1
www.rectron.com 1 of 3
BC546
BC547
BC548
MIN TYP MAX
65
45
30
80
50
30
6
6
5
15
5
0.2 15
0.2 15
0.2 15
4
4
4
0.55 0.66 0.7
0.77
0.09 0.25
0.2 0.60
0.3 0.60
0.7
0.9
90
150
270
110 450
110 800
110 180 220
200 290 450
420 520 800
120
200
400
Note (1): IB is value for which IC = 11mA @ VCE = 10V.
n
A
BC546/BC546A/BC546B/BC546C VCE = 80V n
A
ICES
VCE = 80V, Tj = 125oCu
A
V
Collector Base Voltage VCBO IC = 100uA, IE = 0
V
BC546/BC546A/BC546B/BC546C
BC547/BC547A/BC547B/BC547C
BC548/BC548A/BC548B/BC548C
IC = 1mA, IB = 0Collector Emitter Voltage
BC546/BC546A/BC546B/BC546C V
BC547/BC547A/BC547B/BC547C
ICBO
BC547/BC547A/BC547B/BC547C
BC548/BC548A/BC548B/BC548C
VCEO
VEBO IE = 10uA, IC = 0
IC= 10mA, IB= 5mA
VCE(Sat)
Base Emitter Saturation Voltage
Collector Cut off Current
BC546B/BC547B/BC548B
hFE
BC546C/BC547C/BC548C
BC546A/BC547A/BC548A
V
BC546
V
V
IC= 100mA, IB= 5mA
IC= 100mA, IB= see note (1)
VBE(Sat) IC= 10mA, IB= 0.5mA
BC548/BC548A/BC548B/BC548C VCE = 30V, Tj = 125oCu
A
BC547/BC547A/BC547B/BC547C VCE = 50V, Tj = 125oCu
A
BC546/BC546A/BC546B/BC546C
Base Emitter On Voltage
TEST CONDITION
VBE(on) IC= 2mA, VCE = 5V
IC= 10mA, VCE = 5V
Collector Cut off Current
Emitter Base Voltage
BC546/BC546A/BC546B/BC546C
BC546C/BC547C/BC548C
BC546B/BC547B/BC548B
BC546A/BC547A/BC548A
BC547/BC548
VCE = 5V, IC= 100mA
VCE = 5V, IC= 2mA
UNITS
Collector Emitter Saturation Voltage IC= 10mA, IB= 0.5mA
VCB = 30V, IE= 0
DESCRIPTION SYMBOL
VCB = 30V, IE = 0, Tj = 150oC
BC548/BC548A/BC548B/BC548C
BC548/BC548A/BC548B/BC548C VCE = 30V
DC Current Gain
n
A
u
A
BC547/BC547A/BC547B/BC547C VCE = 50V n
A
VCE = 5V, IC= 10uA
BC546A/BC547A/BC548A
BC546B/BC547B/BC548B
BC546C/BC547C/BC548C
Electrical Characteristics (Ta=25 oC unless otherwise specified)
www.rectron.com 2 of 3
BC546
BC547
BC548
MIN TYP MAX
300
1.7 4.5
9
210
220
330
600
1.6 2.7 4.5
3.2 4.5 8.5
68.7 15
1.5
2
3
18 30
30 60
60 110
u MHO
DYNAMIC CHARACTERISTIC
S
DYNAMIC CHARACTERISTIC
S
Transition Frequency fTIC = 10mA, VCE = 5V, f = 100MHZMHZ
BC546C/BC547C/BC548C
hre
x10
Input Impedance VCE = 5V, IC= 2mA, f= 1kHZ
BC546A/BC547A/BC548A
hie
Noise Figure NF VCE = 5V, IC= 0.2mA dB
RS= 2k ohm, f = 1KHZ, B= 200HZ
BC546B/BC547B/BC548B
BC546C/BC547C/BC548C
hfe
Small Signal Current Gain VCE = 5V, IC= 2mA, f= 1kHZ
BC546A/BC547A/BC548A
Collector output Capacitance Ccbo VCB = 10V, f = 1MHZpF
Voltage Feedback
BC546B/BC547B/BC548B
BC546C/BC547C/BC548C
BC546B/BC547B/BC548B
BC546C/BC547C/BC548C
BC546A/BC547A/BC548A
VCE = 5V, IC= 2mA, f= 1kHZ
BC546A/BC547A/BC548A
Output Admittance hoe
k ohm
BC546B/BC547B/BC548B
Note (1): IB is value for which IC = 11mA @ VCE = 10V.
VEB = 0.5V, f = 1MHZpFEmitter input Capacitance Cib
VCE = 5V, IC= 2mA, f= 1kHZ
DESCRIPTION SYMBOL TEST CONDITION UNITS
Electrical Characteristics (Ta=25 oC unless otherwise specified)
www.rectron.com 3 of 3