BC546B, BC547A, B, C,
BC548B, C
Amplifier Transistors
NPN Silicon
Features
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector - Emitter Voltage
BC546
BC547
BC548
Collector - Base Voltage
BC546
BC547
BC548
Emitter - Base Voltage V
Collector Current − Continuous I
Total Device Dissipation @ TA = 25°C
Derate above 25°C
Total Device Dissipation @ TC = 25°C
Derate above 25°C
Operating and Storage Junction
Temperature Range
V
CEO
V
CBO
EBO
P
P
TJ, T
C
D
D
−55 to +150 °C
stg
65
45
30
80
50
30
6.0 Vdc
100 mAdc
625
5.0
1.5
12
Vdc
Vdc
mW
mW/°C
W
mW/°C
TO−92
CASE 29
STYLE 17
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COLLECTOR
1
2
BASE
3
EMITTER
1
2
3
STRAIGHT LEAD
BULK PACK
1
2
3
BENT LEAD
TAPE & REEL
AMMO PACK
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2007
March, 2007 − Rev. 6
R
q
JA
R
q
JC
200 °C/W
83.3 °C/W
1 Publication Order Number:
MARKING DIAGRAM
BC
54x
AYWWG
G
x = 6, 7, or 8
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
BC546/D
BC546B, BC547A, B, C, BC548B, C
ELECTRICAL CHARACTERISTICS (T
= 25°C unless otherwise noted)
A
Characteristic
OFF CHARACTERISTICS
Collector − Emitter Breakdown Voltage
(I
= 1.0 mA, IB = 0) BC546
C
Collector − Base Breakdown Voltage
= 100 mAdc) BC546
(I
C
Emitter − Base Breakdown Voltage
= 10 mA, IC = 0) BC546
(I
E
Collector Cutoff Current
(V
= 70 V, VBE = 0) BC546
CE
= 50 V, VBE = 0) BC547
(V
CE
(V
= 35 V, VBE = 0) BC548
CE
(VCE = 30 V, TA = 125°C) BC546/547/548
ON CHARACTERISTICS
DC Current Gain
(I
= 10 mA, VCE = 5.0 V) BC547A
C
(I
= 2.0 mA, VCE = 5.0 V) BC546
C
BC546B/547B/548B
BC546B/547B/548B
BC547C/BC548C
BC547
BC548
BC547
BC548
BC547
BC548
BC548C
BC547
BC548
BC547A
Symbol Min Typ Max Unit
V
(BR)CEO
V
(BR)CBO
V
(BR)EBO
I
CES
h
FE
65
45
30
80
50
30
6.0
6.0
6.0
−
−
−
−
−
−
−
110
110
110
110
200
420
0.2
0.2
0.2
90
150
270
180
290
520
−
−
−
−
−
−
−
−
−
15
−
−
−
−
−
−
−
−
−
nA
15
15
−
4.0
mA
−
−
−
−
−
−
450
800
800
220
450
800
V
V
V
−
(I
= 100 mA, VCE = 5.0 V) BC547A/548A
C
BC546B/547B/548B
BC548C
Collector − Emitter Saturation Voltage
(I
= 10 mA, IB = 0.5 mA)
C
(IC = 100 mA, IB = 5.0 mA)
(IC = 10 mA, IB = See Note 1)
Base − Emitter Saturation Voltage
(IC = 10 mA, IB = 0.5 mA)
Base − Emitter On Voltage
(I
= 2.0 mA, VCE = 5.0 V)
C
= 10 mA, VCE = 5.0 V)
(I
C
SMALL−SIGNAL CHARACTERISTICS
Current − Gain − Bandwidth Product
(I
= 10 mA, VCE = 5.0 V, f = 100 MHz) BC546
C
BC547
BC548
Output Capacitance
(V
= 10 V, IC = 0, f = 1.0 MHz)
CB
Input Capacitance
(V
= 0.5 V, IC = 0, f = 1.0 MHz)
EB
Small − Signal Current Gain
(I
= 2.0 mA, VCE = 5.0 V, f = 1.0 kHz) BC546
C
BC547/548
BC547A
BC546B/547B/548B
BC547C/548C
Noise Figure (IC = 0.2 mA, VCE = 5.0 V, RS = 2 kW, f = 1.0 kHz, Df = 200 Hz)
BC546
BC547
BC548
1. IB is value for which IC = 11 mA at VCE = 1.0 V.
V
CE(sat)
V
BE(sat)
V
BE(on)
C
C
f
obo
h
NF
ibo
−
−
−
120
180
300
−
−
−
V
−
−
−
0.09
0.2
0.3
0.25
0.6
0.6
− 0.7 − V
V
0.55
−
T
150
150
150
300
300
300
−
−
0.7
0.77
MHz
−
−
−
− 1.7 4.5 pF
− 10 − pF
fe
125
125
125
240
450
220
330
600
−
−
500
900
260
500
900
−
dB
−
−
−
2.0
2.0
2.0
10
10
10
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2
BC546B, BC547A, B, C, BC548B, C
BC547/BC548
2.0
1.5
1.0
0.8
0.6
0.4
, NORMALIZED DC CURRENT GAIN
0.3
FE
h
0.2
0.2 0.5 1.0 10 20
2.0 5.0
IC, COLLECTOR CURRENT (mAdc)
Figure 1. Normalized DC Current Gain
2.0
1.6
1.2
IC =
10 mA
0.8
IC = 50 mA IC = 100 mA
IC =
20 mA
VCE = 10 V
T
= 25°C
A
50
IC = 200 mA
100
200
V, VOLTAGE (VOLTS)
1.0
TA = 25°C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V
@ IC/IB = 10
BE(sat)
V
@ VCE = 10 V
BE(on)
V
@ IC/IB = 10
CE(sat)
0.2 0.5 1.0 10 20
IC, COLLECTOR CURRENT (mAdc)
2.0
Figure 2. “Saturation” and “On” Voltages
1.0
−55°C to +125°CTA = 25°C
1.2
1.6
2.0
2.4
50
307.05.03.00.70.30.1
10070
0.4
, COLLECTOR−EMITTER VOLTAGE (V)
CE
V
0.02 1.0
0.1
IB, BASE CURRENT (mA)
Figure 3. Collector Saturation Region
10
7.0
5.0
3.0
2.0
C, CAPACITANCE (pF)
1.0
0.4 0.6 1.0 10 20
0.8 4.0 8.0
C
ib
C
ob
2.0 6.0
VR, REVERSE VOLTAGE (VOLTS)
Figure 5. Capacitances
TA = 25°C
10020
2.8
, TEMPERATURE COEFFICIENT (mV/ C)°θ
VB
0.2 1.0
IC, COLLECTOR CURRENT (mA)
10 100
Figure 4. Base−Emitter Temperature Coefficient
400
300
200
100
80
60
40
30
20
T
f, CURRENT−GAIN − BANDWIDTH PRODUCT (MHz)
40
0.7 1.0 10 202.0
IC, COLLECTOR CURRENT (mAdc)
VCE = 10 V
T
= 25°C
A
307.05.03.00.5
50
Figure 6. Current−Gain − Bandwidth Product
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3
VCE = 5 V
= 25°C
T
A
2.0
1.0
0.5
, DC CURRENT GAIN (NORMALIZED)
0.2
FE
h
0.1 1.0
0.2
BC546B, BC547A, B, C, BC548B, C
10 100
IC, COLLECTOR CURRENT (mA)
BC546
1.0
0.8
0.6
0.4
V, VOLTAGE (VOLTS)
0.2
0
0.2 1.0
TA = 25°C
V
@ IC/IB = 10
BE(sat)
VBE @ VCE = 5.0 V
V
@ IC/IB = 10
CE(sat)
0.5 2.0 5.0
IC, COLLECTOR CURRENT (mA)
20 50 100
10 200
Figure 7. DC Current Gain
2.0
1.6
20 mA
1.2
0.8
0.4
, COLLECTOR−EMITTER VOLTAGE (VOLTS)
CE
V
0.05 0.2 0.5 2.0 5.0
0.02 1.0
0.1
50 mA
IC =
10 mA
IB, BASE CURRENT (mA)
Figure 9. Collector Saturation Region
40
20
10
Figure 8. “On” Voltage
−1.0
TA = 25°C
−1.4
100 mA
200 mA
10020
−1.8
−2.2
−2.6
, TEMPERATURE COEFFICIENT (mV/ C)°θ
VB
−3.0
0.2 2.0
0.5 5.0 20
qVB for V
BE
1.0
IC, COLLECTOR CURRENT (mA)
−55°C to 125°C
10 200
50 100
Figure 10. Base−Emitter Temperature Coefficient
TA = 25°C
C
ib
500
200
100
VCE = 5 V
T
= 25°C
A
6.0
C, CAPACITANCE (pF)
4.0
2.0
0.1 0.2 1.0 50
0.5 5.0 20
VR, REVERSE VOLTAGE (VOLTS)
C
ob
2.0 10
Figure 11. Capacitance
50
20
T
f, CURRENT−GAIN − BANDWIDTH PRODUCT
100
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4
1.0 10 50
IC, COLLECTOR CURRENT (mA)
5.0
100
Figure 12. Current−Gain − Bandwidth Product
BC546B, BC547A, B, C, BC548B, C
ORDERING INFORMATION
Device Package Shipping
BC546B TO−92 5000 Units / Bulk
BC546BG TO−92
(Pb−Free)
BC546BRL1 TO−92 2000 / Tape & Reel
BC546BRL1G TO−92
(Pb−Free)
BC546BZL1G TO−92
(Pb−Free)
BC547ARL TO−92 2000 / Tape & Reel
BC547ARLG TO−92
(Pb−Free)
BC547AZL1G TO−92
(Pb−Free)
BC547BG TO−92
(Pb−Free)
BC547BRL1G TO−92
(Pb−Free)
BC547BZL1G TO−92
(Pb−Free)
BC547CG TO−92
(Pb−Free)
BC547CZL1G TO−92
(Pb−Free)
BC548BG TO−92
(Pb−Free)
BC548BRL1G TO−92
(Pb−Free)
BC548BZL1G TO−92
(Pb−Free)
BC548CG TO−92
(Pb−Free)
BC548CZL1G TO−92
(Pb−Free)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
5000 Units / Bulk
2000 / Tape & Reel
2000 / Ammo Box
2000 / Tape & Reel
2000 / Ammo Box
5000 Units / Bulk
2000 / Tape & Reel
2000 / Ammo Box
5000 Units / Bulk
2000 / Ammo Box
5000 Units / Bulk
2000 / Tape & Reel
2000 / Ammo Box
5000 Units / Bulk
2000 / Ammo Box
†
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5
BC546B, BC547A, B, C, BC548B, C
TO−92 (TO−226)
PACKAGE DIMENSIONS
CASE 29−1 1
ISSUE AM
SEATING
PLANE
R
T
SEATING
PLANE
A
B
STRAIGHT LEAD
BULK PACK
R
P
L
K
XX
1
G
H
V
C
N
D
J
SECTION X−X
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
DIM MIN MAX MIN MAX
A 0.175 0.205 4.45 5.20
B 0.170 0.210 4.32 5.33
C 0.125 0.165 3.18 4.19
D 0.016 0.021 0.407 0.533
G 0.045 0.055 1.15 1.39
H 0.095 0.105 2.42 2.66
J 0.015 0.020 0.39 0.50
K 0.500 −−− 12.70 −−−
L 0.250 −−− 6.35 −−−
N 0.080 0.105 2.04 2.66
P −−− 0.100 −−− 2.54
R 0.115 −−− 2.93 −−−
V 0.135 −−− 3.43 −−−
MILLIMETERSINCHES
N
A
B
BENT LEAD
TAPE & REEL
AMMO PACK
P
K
XX
G
D
J
V
1
C
SECTION X−X
N
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. CONTOUR OF PACKAGE BEYOND
DIMENSION R IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P
AND BEYOND DIMENSION K MINIMUM.
MILLIMETERS
DIM MIN MAX
A 4.45 5.20
B 4.32 5.33
C 3.18 4.19
D 0.40 0.54
G 2.40 2.80
J 0.39 0.50
K 12.70 −−−
N 2.04 2.66
P 1.50 4.00
R 2.93 −−−
V 3.43 −−−
STYLE 17:
PIN 1. COLLECTOR
2. BASE
3. EMITTER
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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For additional information, please contact your local
Sales Representative
BC546/D
6
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