DATA SHEET
CN645 THRU CN649
GLASS PASSIVATED JUNCTION
GENERAL PURPOSE DIODE
DO-41SP CASE
DESCRIPTION
The CENTRAL SEMICONDUCTOR CN645 Series types are Glass Passivated Junction general-purpose diodes, which are
well constructed, highly reliable components designed for use in all types of commercial, industrial, entertainment, computer
and automotive applications.
MAXIMUM RATINGS (TA=25°C unless otherwise noted)
SYMBOL
Peak Working Reverse Voltage
VRWM
Average Forward Current
IO
Average Forward Current (TA=150°C)
IO
Peak Forward Surge Current
IFSM
Power Dissipation
PD
Operating and Storage
Junction Temperature
TJ,Tstg
CN645 CN646 CN647 CN648 CN649
225
300
400
500
600
400
150
3.0
600
UNITS
V
mA
mA
A
mW
-65 to 150
°C
ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise noted)
CN645
CN646
SYMBOL
TEST CONDITIONS
MIN MAX MIN MAX
VBR
IR=100µA, TA=100°C
275
360
IR
VR=RATED VRWM, TA=100°C
15
15
IR
VR=RATED VRWM
0.2
0.2
VF
IF=400mA
1.0
1.0
CT
VR=12V, f=1.0MHz
11 TYP
11 TYP
CN647
MIN MAX
480
20
0.2
1.0
11 TYP
CN648
MIN MAX
600
20
0.2
1.0
11 TYP
CN649
MIN MAX
720
25
0.2
1.0
11 TYP
UNITS
V
µA
µA
V
pF
(SEE REVERSE SIDE)
R1
CN645 SERIES
GLASS PASSIVATED, GENERAL PURPOSE DIODE
DO-41SP PACKAGE - MECHANICAL OUTLINE
A
D
SYMBOL
A
B
C
D
B
C
D
R1
DIMENSIONS
INCHES
MILLIMETERS
MIN
MAX
MIN
MAX
0.021 0.025
0.53
0.64
0.160 0.205
4.06
5.21
0.080 0.107
2.03
2.72
1.000
25.40
DO-41SP (REV: R1)
OUTSTANDING SUPPORT AND SUPERIOR SERVICES
PRODUCT SUPPORT
Central’s operations team provides the highest level of support to insure product is delivered on-time.
• Supply management (Customer portals)
• Custom bar coding for shipments
• Inventory bonding
• Custom product packing
• Consolidated shipping options
DESIGNER SUPPORT/SERVICES
Central’s applications engineering team is ready to discuss your design challenges. Just ask.
• Free quick ship samples (2nd day air)
• Special wafer diffusions
• Online technical data and parametric search
• PbSn plating options
• SPICE models
• Package details
• Custom electrical curves
• Application notes
• Environmental regulation compliance
• Application and design sample kits
• Customer specific screening
• Custom product and package development
• Up-screening capabilities
REQUESTING PRODUCT PLATING
1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when
ordering (example: 2N2222A TIN/LEAD).
2. If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number
when ordering (example: 2N2222A PBFREE).
CONTACT US
Corporate Headquarters & Customer Support Team
Central Semiconductor Corp.
145 Adams Avenue
Hauppauge, NY 11788 USA
Main Tel: (631) 435-1110
Main Fax: (631) 435-1824
Support Team Fax: (631) 435-3388
www.centralsemi.com
Worldwide Field Representatives:
www.centralsemi.com/wwreps
Worldwide Distributors:
www.centralsemi.com/wwdistributors
For the latest version of Central Semiconductor’s LIMITATIONS AND DAMAGES DISCLAIMER,
which is part of Central’s Standard Terms and Conditions of sale, visit: www.centralsemi.com/terms
w w w. c e n t r a l s e m i . c o m
(001)
http://www.centralsemi.com
PDN01056
8/24/16
2/24/17
8/24/17
Summary:The CN646, CN647, and CN648, general purpose diodes in the DO-41SP case are discontinued and now classified as End of Life
(EOL).
Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by
various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum
level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's
Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase order will
be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may be extended if
inventory is available.
_________________________
Central
Part Number
_________________________
Replacement
CN646 BK
CN649 BK
CN646 TR
CN649 TR
CN647 BK
CN649 BK
CN647 TR
CN649 TR
CN648 BK
CN649 BK
CN648 TR
CN649 TR
Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we
have no replacement available. Please email your requests to engineering@centralsemi.com.
http://www.centralsemi.com
PDN01076
3/21/18
N/A
N/A
Please be advised that Central Semiconductor must immediately discontinue the product(s) listed in the attached PDN notice. We are unable
to accept any further orders for these products unless
_____ we have available inventory on hand.
You may have purchased one or more of the products listed. Please do not hesitate to contact your local Central Semiconductor sales
representative with any questions or needs you may have. Central regrets any inconvenience this may cause.
Sincerely,
Central Semiconductor Corp.
PDN01076
3/21/18
N/A
N/A
http://www.centralsemi.com
Summary:The CN645 series of general purpose rectifiers is being discontinued; these devices are now classified as End of Life
(EOL).
Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life)
by various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a
minimum level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of
Central's Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase
order will be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may
be extended if inventory is available.
Central Part Number
CN645 BK
CN645 TR
CN649 BK
CN649 TR
Replacement
N/A
N/A
N/A
N/A
Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we
have no replacement available. Please email your requests to engineering@centralsemi.com.
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