© Semiconductor Components Industries, LLC, 2012
June, 2012 − Rev. 7
1Publication Order Number:
BC546/D
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
VCEO 65
45
30
Vdc
Collector - Base Voltage
BC546
BC547
BC548
VCBO 80
50
30
Vdc
Emitter - Base Voltage VEBO 6.0 Vdc
Collector Current − Continuous IC100 mAdc
Total Device Dissipation @ TA = 25°C
Derate above 25°C
PD625
5.0
mW
mW/°C
Total Device Dissipation @ TC = 25°C
Derate above 25°C
PD1.5
12
W
mW/°C
Operating and Storage Junction
Temperature Range
TJ, Tstg −55 to +150 °C
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Ambient RqJA 200 °C/W
Thermal Resistance, Junction−to−Case RqJC 83.3 °C/W
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.
http://onsemi.com
COLLECTOR
1
2
BASE
3
EMITTER
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
ORDERING INFORMATION
123
12
BENT LEAD
TAPE & REEL
STRAIGHT LEAD
3
TO−92
CASE 29
STYLE 17
MARKING DIAGRAM
BC
54xy
AYWW G
G
x = 6, 7, or 8
y = A, B or C
A = Assembly Location
Y = Year
WW = Work Week
G= Pb−Free Package
(Note: Microdot may be in either location)
BC546B, BC547A, B, C, BC548B, C
http://onsemi.com
2
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Collector − Emitter Breakdown Voltage
(IC = 1.0 mA, IB = 0) BC546
BC547
BC548
V(BR)CEO 65
45
30
−
−
−
−
−
−
V
Collector − Base Breakdown Voltage
(IC = 100 mAdc) BC546
BC547
BC548
V(BR)CBO 80
50
30
−
−
−
−
−
−
V
Emitter − Base Breakdown Voltage
(IE = 10 mA, IC = 0) BC546
BC547
BC548
V(BR)EBO 6.0
6.0
6.0
−
−
−
−
−
−
V
Collector Cutoff Current
(VCE = 70 V, VBE = 0) BC546
(VCE = 50 V, VBE = 0) BC547
(VCE = 35 V, VBE = 0) BC548
(VCE = 30 V, TA = 125°C) BC546/547/548
ICES
−
−
−
−
0.2
0.2
0.2
−
15
15
15
4.0
nA
mA
ON CHARACTERISTICS
DC Current Gain
(IC = 10 mA, VCE = 5.0 V) BC547A
BC546B/547B/548B
BC548C
(IC = 2.0 mA, VCE = 5.0 V) BC546
BC547
BC548
BC547A
BC546B/547B/548B
BC547C/BC548C
(IC = 100 mA, VCE = 5.0 V) BC547A/548A
BC546B/547B/548B
BC548C
hFE
−
−
−
110
110
110
110
200
420
−
−
−
90
150
270
−
−
−
180
290
520
120
180
300
−
−
−
450
800
800
220
450
800
−
−
−
−
Collector − Emitter Saturation Voltage
(IC = 10 mA, IB = 0.5 mA)
(IC = 100 mA, IB = 5.0 mA)
(IC = 10 mA, IB = See Note 1)
VCE(sat)
−
−
−
0.09
0.2
0.3
0.25
0.6
0.6
V
Base − Emitter Saturation Voltage
(IC = 10 mA, IB = 0.5 mA)
VBE(sat) −0.7 −V
Base − Emitter On Voltage
(IC = 2.0 mA, VCE = 5.0 V)
(IC = 10 mA, VCE = 5.0 V)
VBE(on) 0.55
−
−
−
0.7
0.77
V
SMALL−SIGNAL CHARACTERISTICS
Current − Gain − Bandwidth Product
(IC = 10 mA, VCE = 5.0 V, f = 100 MHz) BC546
BC547
BC548
fT150
150
150
300
300
300
−
−
−
MHz
Output Capacitance
(VCB = 10 V, IC = 0, f = 1.0 MHz)
Cobo −1.7 4.5 pF
Input Capacitance
(VEB = 0.5 V, IC = 0, f = 1.0 MHz)
Cibo −10 −pF
Small − Signal Current Gain
(IC = 2.0 mA, VCE = 5.0 V, f = 1.0 kHz) BC546
BC547/548
BC547A
BC546B/547B/548B
BC547C/548C
hfe 125
125
125
240
450
−
−
220
330
600
500
900
260
500
900
−
Noise Figure (IC = 0.2 mA, VCE = 5.0 V, RS = 2 kW, f = 1.0 kHz, Df = 200 Hz)
BC546
BC547
BC548
NF
−
−
−
2.0
2.0
2.0
10
10
10
dB
1. IB is value for which IC = 11 mA at VCE = 1.0 V.
BC546B, BC547A, B, C, BC548B, C
http://onsemi.com
3
BC547/BC548
Figure 1. Normalized DC Current Gain
IC, COLLECTOR CURRENT (mAdc)
2.0
Figure 2. “Saturation” and “On” Voltages
IC, COLLECTOR CURRENT (mAdc)
0.2 0.5 1.0 10 20 50
0.2 100
Figure 3. Collector Saturation Region
IB, BASE CURRENT (mA)
Figure 4. Base−Emitter Temperature Coefficient
IC, COLLECTOR CURRENT (mA)
2.0 5.0 200
0.6
0.7
0.8
0.9
1.0
0.5
0
0.2
0.4
0.1
0.3
1.6
1.2
2.0
2.8
2.4
1.2
1.6
2.0
0.02 1.0 10
020
0.1
0.4
0.8
hFE, NORMALIZED DC CURRENT GAIN
V, VOLTAGE (VOLTS)
VCE, COLLECTOR-EMITTER VOLTAGE (V)
VB, TEMPERATURE COEFFICIENT (mV/ C)°θ
1.5
1.0
0.8
0.6
0.4
0.3
0.2 0.5 1.0 10 20 50
2.0 10070
307.05.03.00.70.30.1
0.2 1.0 10 100
TA = 25°C
VBE(sat) @ IC/IB = 10
VCE(sat) @ IC/IB = 10
VBE(on) @ VCE = 10 V
VCE = 10 V
TA = 25°C
-55°C to +125°CTA = 25°C
IC = 50 mA IC = 100 mA
IC = 200 mA
IC =
20 mA
IC =
10 mA
1.0
Figure 5. Capacitances
VR, REVERSE VOLTAGE (VOLTS)
10
Figure 6. Current−Gain − Bandwidth Product
IC, COLLECTOR CURRENT (mAdc)
0.4 0.6 1.0 10 20
1.0 2.0 6.0 40
80
100
200
300
400
60
20
40
30
7.0
5.0
3.0
2.0
0.7 1.0 10 202.0 50
307.05.03.00.5
VCE = 10 V
TA = 25°C
C, CAPACITANCE (pF)
f, CURRENT-GAIN - BANDWIDTH PRODUCT (MHz)
T
0.8 4.0 8.0
TA = 25°C
Cob
Cib
BC546B, BC547A, B, C, BC548B, C
http://onsemi.com
4
BC546
Figure 7. DC Current Gain
IC, COLLECTOR CURRENT (mA)
Figure 8. “On” Voltage
IC, COLLECTOR CURRENT (mA)
0.8
1.0
0.6
0.2
0.4
1.0
2.0
0.1 1.0 10 1000.2
0.2
0.5
0.2 1.0 10 200
TA = 25°C
VBE(sat) @ IC/IB = 10
VCE(sat) @ IC/IB = 10
VBE @ VCE = 5.0 V
Figure 9. Collector Saturation Region
IB, BASE CURRENT (mA)
Figure 10. Base−Emitter Temperature Coefficient
IC, COLLECTOR CURRENT (mA)
-1.0
1.2
1.6
2.0
0.02 1.0 10
0200.1
0.4
0.8
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
VB, TEMPERATURE COEFFICIENT (mV/ C)°θ
0.2 2.0 10 2001.0
TA = 25°C
200 mA
50 mA
IC =
10 mA
hFE, DC CURRENT GAIN (NORMALIZED)
V, VOLTAGE (VOLTS)
VCE = 5 V
TA = 25°C
00.5 2.0 5.0 20 50 100
0.05 0.2 0.5 2.0 5.0
100 mA
20 mA
-1.4
-1.8
-2.2
-2.6
-3.0
0.5 5.0 20 50 100
-55°C to 125°C
qVB for VBE
Figure 11. Capacitance
VR, REVERSE VOLTAGE (VOLTS)
40
Figure 12. Current−Gain − Bandwidth Product
IC, COLLECTOR CURRENT (mA)
0.1 0.2 1.0 50
2.0 2.0 10 100
100
200
500
50
20
20
10
6.0
4.0
1.0 10 50 100
5.0
VCE = 5 V
TA = 25°C
C, CAPACITANCE (pF)
f, CURRENT-GAIN - BANDWIDTH PRODUCT
T
0.5 5.0 20
TA = 25°C
Cob
Cib
BC546B, BC547A, B, C, BC548B, C
http://onsemi.com
5
ORDERING INFORMATION
Device Package Shipping†
BC546B TO−92 5000 Units / Bulk
BC546BG TO−92
(Pb−Free)
5000 Units / Bulk
BC546BRL1 TO−92 2000 / Tape & Reel
BC546BRL1G TO−92
(Pb−Free)
2000 / Tape & Reel
BC546BZL1G TO−92
(Pb−Free)
2000 / Ammo Box
BC547ARL TO−92 2000 / Tape & Reel
BC547ARLG TO−92
(Pb−Free)
2000 / Tape & Reel
BC547AZL1G TO−92
(Pb−Free)
2000 / Ammo Box
BC547BG TO−92
(Pb−Free)
5000 Units / Bulk
BC547BRL1G TO−92
(Pb−Free)
2000 / Tape & Reel
BC547BZL1G TO−92
(Pb−Free)
2000 / Ammo Box
BC547CG TO−92
(Pb−Free)
5000 Units / Bulk
BC547CZL1G TO−92
(Pb−Free)
2000 / Ammo Box
BC548BG TO−92
(Pb−Free)
5000 Units / Bulk
BC548BRL1G TO−92
(Pb−Free)
2000 / Tape & Reel
BC548BZL1G TO−92
(Pb−Free)
2000 / Ammo Box
BC548CG TO−92
(Pb−Free)
5000 Units / Bulk
BC548CZL1G TO−92
(Pb−Free)
2000 / Ammo Box
†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.
BC546B, BC547A, B, C, BC548B, C
http://onsemi.com
6
PACKAGE DIMENSIONS
TO−92 (TO−226)
CASE 29−11
ISSUE AM
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.
R
A
P
J
L
B
K
G
H
SECTION X−X
C
V
D
N
N
XX
SEATING
PLANE DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.175 0.205 4.45 5.20
B0.170 0.210 4.32 5.33
C0.125 0.165 3.18 4.19
D0.016 0.021 0.407 0.533
G0.045 0.055 1.15 1.39
H0.095 0.105 2.42 2.66
J0.015 0.020 0.39 0.50
K0.500 --- 12.70 ---
L0.250 --- 6.35 ---
N0.080 0.105 2.04 2.66
P--- 0.100 --- 2.54
R0.115 --- 2.93 ---
V0.135 --- 3.43 ---
1
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.
RA
P
J
B
K
G
SECTION X−X
C
V
D
N
XX
SEATING
PLANE DIM MIN MAX
MILLIMETERS
A4.45 5.20
B4.32 5.33
C3.18 4.19
D0.40 0.54
G2.40 2.80
J0.39 0.50
K12.70 ---
N2.04 2.66
P1.50 4.00
R2.93 ---
V3.43 ---
1
T
STRAIGHT LEAD
BENT LEAD
TAPE & REEL
STYLE 17:
PIN 1. COLLECTOR
2. BASE
3. EMITTER
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BC546/D
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