© Semiconductor Components Industries, LLC, 2005
September, 2005 − Rev. 3 1Publication Order Number:
BC447/D
BC447, BC449, BC449A
High Voltage Transistors
NPN Silicon
Features
Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector − Emitter Voltage
BC447
BC449, BC449A
VCEO 80
100
Vdc
Collector-Base Voltage
BC447
BC449, BC449A
VCBO 80
100
Vdc
Emitter-Base Voltage VEBO 5.0 Vdc
Collector Current − Continuous IC300 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
Moisture Sensitivity Level (MSL)
Electrostatic Discharge (ESD) MSL: 1
NA
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
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
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Device Package Shipping
ORDERING INFORMATION
BC447 TO−92
http://onsemi.com
TO−92
CASE 29
STYLE 17
5000 Units / Box
3
2
1
BC449 TO−92 5000 Units / Box
COLLECTOR
1
2
BASE
3
EMITTER
BC449A TO−92 5000 Units / Box
MARKING DIAGRAM
BC
44x
AYWW G
G
BC44x = Device Code
x = 7 or 9
A = Assembly Location
Y = Year
WW = Work Week
G= Pb−Free Package
(Note: Microdot may be in either location)
BC447G TO−92
(Pb−Free) 5000 Units / Box
BC449G TO−92
(Pb−Free) 5000 Units / Box
BC449AG TO−92
(Pb−Free) 5000 Units / Box
BC447, BC449, BC449A
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2
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
CollectorEmitter Breakdown Voltage (Note 1)
(IC = 1.0 mAdc, IB = 0) BC447
BC449, BC449A
V(BR)CEO 80
100
Vdc
CollectorBase Breakdown Voltage
(IC = 100 mAdc, IE = 0) BC447
BC449, BC449A
V(BR)CBO 80
100
Vdc
EmitterBase Breakdown Voltage
(IE = 10 mAdc, IC = 0) V(BR)EBO 5.0 Vdc
Collector Cutoff Current
(VCB = 60 Vdc, IE = 0) BC447
(VCB = 80 Vdc, IE = 0) BC449, BC449A
ICBO
100
100
nAdc
ON CHARACTERISTICS (Note 1)
DC Current Gain
(IC = 2.0 mAdc, VCE = 5.0 Vdc) BC447, BC449
BC449A
(IC = 10 mAdc, VCE = 5.0 Vdc) BC447, BC449
BC449A
(IC = 100 mAdc, VCE = 5.0 Vdc) BC447, BC449
BC449A
hFE 50
120
50
100
50
60
460
220
CollectorEmitter Saturation Voltage
(IC = 100 mAdc, IB = 10 mAdc) VCE(sat) 0.125 0.25 Vdc
BaseEmitter Saturation Voltage
(IC = 100 mAdc, IB = 10 mAdc) VBE(sat) 0.85 Vdc
BaseEmitter On Voltage
(IC = 2.0 mAdc, VCE = 5.0 Vdc)
(IC = 100 mAdc, VCE = 5.0 Vdc) (Note 1)
VBE(on) 0.55
0.76 0.7
1.2
Vdc
DYNAMIC CHARACTERISTICS
CurrentGain − Bandwidth Product
(IC = 50 mAdc, VCE = 5.0 Vdc, f = 100 MHz) fT100 200 MHz
1. Pulse Test: Pulse Width 300 ms, Duty Cycle 2%
BC447, BC449, BC449A
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3
Figure 1. Current−Gain — Bandwidth Product Figure 2. Capacitance
Figure 3. Switching Times
IC, COLLECTOR CURRENT (mA)
−100−10
200
100
70
50
30
VR, REVERSE VOLTAGE (VOLTS)
−1.0 −100−0.1 −2.0
fT, CURRENT−GAIN − BANDWIDTH PRODUCT (MHz)
C, CAPACITANCE (pF)
−2.0 −3.0 −5.0 −7.0 −20 −30 −50 −70
300
−0.2 −0.5 −5.0 −10 −20 −50
TJ = 25°C
IC, COLLECTOR CURRENT (mA)
−10
500
200
100
50
20
10
−100
t, TIME (ns)
−50 −200
1.0 k
300
700
70
30
−70−20 −30
TJ = 25°C
VCE = −1.0 V
−5.0 V
−1.0
40
20
10
6.0
TJ = 25°C
4.0
2.0
Cibo
Cobo
VCC = −40 V
IC/IB = 10
IB1 = IB2
TJ = 25°C
ts
tf
tr
td @ VBE(off) = −0.5 V
8.0
Figure 4. Active−Region Safe Operating Area
VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)
−10 −50−1.0
−500
−200
−100
−50
−20
−10
−20−2.0 −5.0
−1.0 k
IC, COLLECTOR CURRENT (mA)
MPS8598
CURRENT LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT
MPS8599
−3.0 −7.0 −30 −100−70
−30
−70
−300
−700
DUTY CYCLE 10%
Figure 5. DC Current Gain Figure 6. “ON” Voltages
V, VOLTAGE (VOLTS)
IC, COLLECTOR CURRENT (mA)
, DC CURRENT GAINhFE
IC, COLLECTOR CURRENT (mA)
−2.0−0.2
300
200
100
70
50
30
−10
TJ = 125°C
−1.0 −5.0
VCE = −5.0 V
−20 −100−50 −200
25°C
−55°C
−0.5 10 2001.0
1.0
0.8
0.6
0.4
0.2
0
100
TJ = 25°C
VBE(sat) @ IC/IB = 10
VCE(sat) @ IC/IB = 10
VBE @ VCE = 5.0 V
0.2 2.0 20 50
0.5 5.0
BC447, BC449, BC449A
http://onsemi.com
4
Figure 7. Collector Saturation Region Figure 8. Base−Emitter Temperature
Coefficient
IC, COLLECTOR CURRENT (mA)
IB, BASE CURRENT (mA)
RVB , TEMPERATURE COEFFICIENT (mV/ C)
q°
, COLLECTOR−EMITTER VOLTAGE (VOLTS)VCE
1000.2 101.0 2.0 5.0 20 50 200
0.1 100.05
2.0
1.6
1.2
0.8
0.4
0
1.0
TJ = 25°C
IC =
100 mA
IC =
50 mA
IC =
200 mA
IC =
20 mA
IC =
10 mA
202.0 5.00.2 0.5
−1.0
−1.4
−1.8
−2.2
−2.6
−3.0
RqVB FOR VBE
−55°C TO 125°C
0.5
0.02
Figure 9. Thermal Response
t, TIME (ms)
1.0 2.0 5.0 10 20 50 100 200 500 1.0 k 2.0 k 5.0 k 10 k 20 k 50 k 100 k
0.03
0.02
0.1
0.07
0.05
0.01
0.3
0.2
1.0
0.7
0.5
r(t), NORMALIZED TRANSIENT
THERMAL RESISTANCE
ZqJC(t) = r(t) RqJC
TJ(pk) − TC = P(pk) ZqJC(t)
ZqJA(t) = r(t) RqJA
TJ(pk) − TA = P(pk) ZqJA(t)
D CURVES APPLY FOR
POWER PULSE TRAIN
SHOWN READ TIME AT t1
(SEE AN469)
t1
t2
DUTY CYCLE, D = t1/t2
P(pk)
D = 0.5
0.2
0.1
0.02 0.01
SINGLE PULSE
SINGLE PULSE
0.05
BC447, BC449, BC449A
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5
PACKAGE DIMENSIONS
TO−92
(TO−226)
CASE 29−11
ISSUE AL 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
STYLE 17:
PIN 1. COLLECTOR
2. BASE
3. EMITTER
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BC447/D
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