Page 1
BC372, BC373
s
High Voltage
Darlington Transistors
NPN Silicon
Features
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector−Emitter Voltage
Collector−Base Voltage
Emitter−Base Voltage V
Collector Current − Continuous I
Total Power Dissipation @ TA = 25°C
Derate above T
Total Power Dissipation @ TA = 25°C
Derate above T
Operating and Storage Junction
Temperature Range
= 25°C
A
= 25°C
A
BC372
BC373
BC372
BC373
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.
V
CEO
V
CES
EBO
P
P
TJ, T
R
R
C
D
D
−55 to +150 °C
stg
q
JA
q
JC
100
80
100
80
12 Vdc
1.0 Adc
625
5.0
1.5
12
200 °C/W
83.3 °C/W
Vdc
Vdc
mW
mW/°C
W
mW/°C
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COLLECTOR 3
BASE
2
EMITTER 1
TO−92
CASE 29
STYLE 1
1
2
3
STRAIGHT LEAD
BULK PACK
1
2
BENT LEAD
TAPE & REEL
AMMO PACK
MARKING DIAGRAM
BC
37x
AYWWG
G
x = 2 or 3
A = Assembly Location
Y = Y ear
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
3
*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. 4
1 Publication Order Number:
ORDERING INFORMATION
Device Package Shipping
BC372G TO−92
BC373RL1 TO−92 2000 / Tape & Reel
BC373RL1G TO−92
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD801 1/D.
(Pb−Free)
(Pb−Free)
5000 Units / Bulk
2000 / Tape & Reel
†
BC372/D
Page 2
BC372, BC373
ELECTRICAL CHARACTERISTICS (T
= 25°C unless otherwise noted)
A
Characteristic
OFF CHARACTERISTICS
Collector−Emitter Breakdown Voltage
(1)
(IC = 100 mAdc, IB = 0) BC372
Collector−Base Breakdown Voltage
(IC = 100 mAdc, IE = 0) BC372
Emitter−Base Breakdown Voltage
(IE = 10 mAdc, IC = 0)
Collector Cutoff Current
(V
= 80 Vdc, IE = 0) BC372
CB
(V
= 60 Vdc, IE = 0) BC373
CB
Emitter Cutoff Current
(V
= 10 V, IC = 0)
EB
ON CHARACTERISTICS (Note 1)
DC Current Gain
(I
= 250 mAdc, VCE = 5.0 Vdc)
C
(IC = 100 mAdc, VCE = 5.0 Vdc)
Collector−Emitter Saturation Voltage
(I
= 250 mAdc, IB = 0.25 mAdc)
C
Base−Emitter Saturation Voltage
(I
= 250 mAdc, IB = 0.25 mAdc)
C
DYNAMIC CHARACTERISTICS
Current−Gain Bandwidth Product
(I
= 100 mAdc, VCE = 5.0 Vdc, f = 100 MHz)
C
Output Capacitance
(V
= 10 Vdc, IE = 0, f = 1.0 MHz)
CB
Noise Figure
= 1.0 mAdc, VCE = 5.0 Vdc, Rg = 100 kW, f = 1.0 kHz)
(I
C
1. Pulse Test: Pulse Width = 300 ms, Duty Cycle 2.0%.
BC373
BC373
Symbol Min Typ Max Unit
V
(BR)CES
V
(BR)CBO
V
(BR)EBO
I
CBO
I
EBO
h
FE
V
CE(sat)
V
BE(sat)
f
C
100
80
100
80
−
−
−
−
−
−
−
−
12 − − Vdc
−
−
−
−
100
100
− − 100 nAdc
8.0
10
−
−
−
160
− 1.0 1.1 Vdc
− 1.4 2.0 Vdc
T
ob
100 200 − MHz
− 10 25 pF
Vdc
Vdc
nAdc
NF − 2.0 − dB
K
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2
Page 3
BC372, BC373
100 K
10 K
, DC CURRENT GAIN
FE
h
1 K
1000
1
VCE = 5 V
= 5 V
V
CE
T
= 25°C
J
TA = 125°C
25°C
−55°C
IC, COLLECTOR CURRENT (mA)
Figure 1. DC Current Gain
1.6
1.4
1.2
1
0.8
VOLTAGE (V)
0.6
0.4
0.2
0
100
V
@ IC/IB = 100
BE(sat)
V
@ VCE = 5 V
BE(on)
V
@ IC/IB = 100
CE(sat)
5 10010 50010 100 1000
IC, COLLECTOR CURRENT (mA)
Figure 2. “Saturation” and “On” Voltages
C
ib
100
10
T
0.6 101 600100
f, CURRENT−GAIN BANDWIDTH PRODUCT (MHz)
IC, COLLECTOR CURRENT (mA)
Figure 3. Current−Gain — Bandwidth Product
10
C, CAPACITANCE (pF)
1
C
ob
100.1
VR, REVERSE VOLTAGE (VOLTS)
Figure 4. Capacitances
100
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3
Page 4
BC372, BC373
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
V
1
G
H
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
P
K
XX
G
V
1
C
N
BENT LEAD
TAPE & REEL
AMMO PACK
D
J
SECTION X−X
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 1:
PIN 1. EMITTER
2. BASE
3. COLLECTOR
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BC372/D
4
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