BC547B
General Purpose Transistor
Page <1> 12/05/08 V1.1
TO-92 Plastic Package
Pin Configuration:
1. Collector
2. Base
3. Emitter
Features:
•NPN general purpose transistors, especially suited for use in driver stages of audio
amplifiers, low noise input stages of tape recorders, HI-FI amplifiers, signal processing
circuits of television receivers.
Dimensions Minimum Maximum
A 4.32 5.33
B 4.45 5.20
C 3.18 4.19
D 0.41 0.55
E 0.35 0.50
F 5°
G
1.14
1.40
H 1.53
K 12.70 -
Dimensions : Millimetres
BC547B
General Purpose Transistor
Page <2> 12/05/08 V1.1
Absolute Maximum Ratings (Ta= 25°C unless otherwise specified)
Parameters Symbol Value Unit
Collector Emitter Voltage VCEO 45
V
Collector Emitter Voltage VCES
50
Collector Base Voltage VCBO
Emitter Base Voltage VEBO 6.0
Collector Current Continuous
Peak
IC
ICM
100
200
mA
Base Current Peak IBM
200
Emitter Current Peak IEM
Power Dissipation at Ta= 25°C
Derate above 25°C PTA 500
4.0
mW
mW/°C
Storage Temperature Tstg -65 to +150
°C
Junction Temperature Tj150
Thermal Resistance
Junction to Ambient Rth (j-a) 250 °C/W
Electrical Characteristics (Ta= 25°C unless otherwise specified)
Parameters Symbol Test Condition Value Unit
Collector Emitter Voltage VCEO IC= 1mA, IB= 0 >45
VCollector Base Voltage VCBO IC= 10µA, IE= 0 >50
Emitter Base Voltage VEBO IE= 10µA, IC= 0 >6.0
Collector Cut off Current
ICBO
VCB = 30V, IE= 0
TJ= 150°C
VCB = 30V, IE= 0
<50
<5.0
nA
µA
ICES
VCE = 50V, VBE = 0
TJ= 125°C <15 nA
Collector Cut off Current VCE = 50V, VBE = 0 <4.0 µA
DC Current Gain hFE IC= 2mA, VCE = 5V 200 -
Collector Emitter Saturation Voltage VCE (sat)
IC= 10mA, IB= 0.5mA
IC= 100mA, IB= 5mA
<0.25
<0.60
VBase Emitter Saturation Voltage VBE (sat)
IC= 10mA, IB= 0.5mA
IC= 100mA, IB= 5mA
Typical 0.70
Typical 0.90
Base Emitter On Voltage VBE (on)
IC= 2mA, VCE = 5V
IC= 10mA, VCE = 5V
0.55 - 0.70
<0.72
BC547B
General Purpose Transistor
Page <3> 12/05/08 V1.1
Specifications
VCEO
(V)
VCBO
Maximum
(V)
IC
(A)
hFE
Minimum
at IC= 2mA
fT
(Typical)
MHz
Ptot
(mW) Package Part Number
45 50 0.1 200 300 625 TO-92 BC547B
Electrical Characteristics (Ta= 25°C unless otherwise specified)
Parameters Symbol Test Condition Value Units
Dynamic Characteristics
Transition Frequency fT
IC= 10mA, VCE = 5V
f = 100MHz Typical 300 MHz
Collector Output Capacitance Ccbo VCB = 10V, f = 1MHz <4.50
pF
Emitter Input Capacitance Cib VEB = 0.5V, f = 1MHz Typical 9.0
Noise Figure NF IC= 0.2mA, VCE = 5V
Rs= 1kΩ, f = 200Hz <10 dB
Small Signal Current Gain hfe
IC= 2mA, VCE = 5V
Typical 330 -
Input Impedance hie 3.2 - 8.5 kΩ
Voltage Feedback Ratio hre Typical 2.0 x 10-4
Output Impedance hoe <60 µΩ
For enquiries from all other markets
BC557B
General Purpose Transistor
Page <4> 12/05/08 V1.1
Notes:
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export
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