© Semiconductor Components Industries, LLC, 2005
September, 2005 − Rev. 5 1Publication Order Number:
BC635/D
BC635, BC637, BC639,
BC639−16
High Current Transistors
NPN Silicon
Features
•Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector - Emitter Voltage BC635
BC637
BC639
VCEO 45
60
80
Vdc
Collector - Base Voltage BC635
BC637
BC639
VCBO 45
60
80
Vdc
Emitter - Base Voltage VEBO 5.0 Vdc
Collector Current − Continuous IC1.0 Adc
Total Device Dissipation @ TA = 25°C
Derate above 25°CPD625
5.0 mW
mW/°C
Total Device Dissipation @ TC = 25°C
Derate above 25°CPD800
12 mW
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
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.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
COLLECTOR
2
3
BASE
1
EMITTER
TO−92
CASE 29
STYLE 14
3
2
1
MARKING DIAGRAM
http://onsemi.com
BC63x = Device Code
x = 5, 7, or 9
A = Assembly Location
Y = Year
WW = Work Week
G= Pb−Free Package
(Note: Microdot may be in either location)
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
BC
63x
AYWW G
G
BC635, BC637, BC639, BC639−16
http://onsemi.com
2
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Collector − Emitter Breakdown Voltage (Note 1)
(IC = 10 mAdc, IB = 0) BC635
BC637
BC639
V(BR)CEO 45
60
80
−
−
−
−
−
−
Vdc
Collector − Emitter Zero−Gate Breakdown Voltage(Note 1)
(IC = 100 mAdc, IB = 0) BC639−16 V(BR)CES 120 − − Vdc
Collector − Base Breakdown Voltage
(IC = 100 mAdc, IE = 0) BC635
BC637
BC639
V(BR)CBO 45
60
80
−
−
−
−
−
−
Vdc
Emitter − Base Breakdown Voltage
(IE = 10 mAdc, IC = 0) V(BR)EBO 5.0 − − Vdc
Collector Cutoff Current
(VCB = 30 Vdc, IE = 0)
(VCB = 30 Vdc, IE = 0, TA = 125°C)
ICBO −
−−
−100
10 nAdc
mAdc
ON CHARACTERISTICS (Note 1)
DC Current Gain
(IC = 5.0 mAdc, VCE = 2.0 Vdc)
(IC = 150 mAdc, VCE = 2.0 Vdc) BC635
BC637
BC639
BC639−16ZLT1
(IC = 500 mA, VCE = 2.0 V)
hFE 25
40
40
40
100
25
−
−
−
−
−
−
−
250
160
160
250
−
−
Collector − Emitter Saturation Voltage
(IC = 500 mAdc, IB = 50 mAdc) VCE(sat) − − 0.5 Vdc
Base − Emitter On V oltage
(IC = 500 mAdc, VCE = 2.0 Vdc) VBE(on) − − 1.0 Vdc
DYNAMIC CHARACTERISTICS
Current Gain − Bandwidth Product
(IC = 50 mAdc, VCE = 2.0 Vdc, f = 100 MHz) fT− 200 − MHz
Output Capacitance
(VCB = 10 Vdc, IE = 0, f = 1.0 MHz) Cob − 7.0 − pF
Input Capacitance
(VEB = 0.5 Vdc, IC = 0, f = 1.0 MHz) Cib − 50 − pF
1. Pulse Test: Pulse Width ≤ 300 ms, Duty Cycle 2.0%.
BC635, BC637, BC639, BC639−16
http://onsemi.com
3
IC, COLLECTOR CURRENT (mA)
hFE, DC CURRENT GAIN
f, CURRENT−GAIN BANDWIDTH PRODUCT (MHz)
T
V, VOLTAGE (VOLTS)
V, TEMPERATURE COEFFICIENTS (mV/ C)°θ
1000
1
2
5
10
20
50
100
200
500
1001 2 3 4 5 7 10 20 30 40 50 70
VCE, COLLECTOR−EMITTER VOLTAGE (VOLTS)
Figure 1. Active Region Safe Operating Area
BC635
BC637
BC639
PD TA 25°C
PD TC 25°C
SOA = 1S
PD TC 25°C
PD TA 25°C
500
200
100
50
20 1 3 5 10 30 50 100 300 500 1000
IC, COLLECTOR CURRENT (mA)
Figure 2. DC Current Gain
VCE = 2 V
500
300
100
50
20 1 10 100 1000
IC, COLLECTOR CURRENT (mA)
Figure 3. Current−Gain — Bandwidth Product
VCE = 2 V
1
0.8
0.6
0.4
0.2
01 10 100 1000
IC, COLLECTOR CURRENT (mA)
Figure 4. “Saturation” and “On” Voltages
VBE(sat) @ IC/IB = 10
VBE(on) @ VCE = 2 V
VCE(sat) @ IC/IB = 10
−0.2
−1.0
−2.2
−1.6
1 3 5 10 30 50 100 300 500 1000
IC, COLLECTOR CURRENT (mA)
Figure 5. Temperature Coefficients
VCE = 2 VOLTS
DT = 0°C to +100°C
qV for VBE
BC635, BC637, BC639, BC639−16
http://onsemi.com
4
DEVICE ORDERING INFORMATION
Device Package Shipping†
BC635RL1 TO−92 2000 / Tape & Reel
BC635RL1G TO−92
(Pb−Free) 2000 / Tape & Reel
BC635ZL1 TO−92 2000 / Tape & Reel
BC635ZL1G TO−92
(Pb−Free) 2000 / Tape & Reel
BC637 TO−92 5000 Units / Box
BC637G TO−92
(Pb−Free) 5000 Units / Box
BC639 TO−92 5000 Units / Box
BC639G TO−92
(Pb−Free) 5000 Units / Box
BC639RL1 TO−92 2000 / Tape & Reel
BC639RL1G TO−92
(Pb−Free) 2000 / Tape & Reel
BC639ZL1 TO−92 2000 / Ammo Box
BC639ZL1G TO−92
(Pb−Free) 2000 / Ammo Box
BC639−16ZL1 TO−92 2000 / Ammo Box
BC639−16ZL1G 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.
BC635, BC637, BC639, BC639−16
http://onsemi.com
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 14:
PIN 1. EMITTER
2. COLLECTOR
3. BASE
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, af filiates,
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.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Japan: ON Semiconductor, Japan Customer Focus Center
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
BC635/D
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada
Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: http://onsemi.com
Order Literature: http://www.onsemi.com/litorder
For additional information, please contact your
local Sales Representative.
