3M™3644 Series cable is an excellent choice for digital
communications applications requiring 100-Ohm impedance. It
combines all the features that make for superior performance and
easier handling in applications.
The 3644 cable uses a dual shielding of aluminum/polyester film
foil and tinned copper braid for excellent EMI/ESD protection. Its
twisted pair configuration reduces crosstalk for balanced drive
applications, resulting in higher quality communications. Its 28
AWG stranded, discrete color-coded wire is flexible and easy to use.
The 3644 cable is an optimal cost/performance solution for LVDS
digital 100-Ohm transmission applications where the cable length
is less than four meters and transmission speeds are under 700
Mbytes per second. Applications include:
• Routers
• Switches
• Device-to-device digital communications
• Desktop monitors
• Factory automation equipment
• Medical equipment
• Kiosk displays and flat panel displays
Solid Company, Superior Technology
3M promises innovative, quality products and service that make
your life easier and better, from a company you can trust. 3M is a
company of creative problem-solvers. Whether the challenge is
precise signal transmission requirements, fast moving schedules on
a production line or just-in-time delivery to manufacturing sites
around the world, 3M's research, engineering, production and sales
staff have the experience and tools to do the job. The 3644 Series
Cable extends 3M's family of excellent cable and cable assemblies,
offering you even more options in digital design.
Features
• Color-coded twisted pairs provide easy identification for
connector termination
• Dual shielding of aluminum/polyester film foil and tinned
copper braid
• UL Listed Power Limited Circuit Cable (CL2)
• Cable meets USA National Electrical Code requirements for
external wiring
3644 Series, Round,
100-Ohm, Discr ete,
Twisted Pair Cable
Electronic Product Division
Cable and Assemblies Solutions
6801 River Place Blvd.
Austin, TX 78726-9000
http://www.3M.com/interconnects
Recycled paper
40% Pre- consumer waste paper
10% Post-consumer waste paper
Litho in USA.
© 3M 1999 80-6201-4926-2 (7920.0)JHA/TG
For ordering information, technical information, and product
information, you can reach us at:
Phone: 1-800-225-5373 Fax: 1-800-325-5329
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Certificate no. A1124
Registered by Underwriters
Laboratories Inc. to ISO 9002
Important Notice
All statements, technical information, and recommendations related to
3M’s products are based on information believed to be reliable, but the
accuracy or completeness is not guaranteed. Before using this product,
you must evaluate it and determine if it is suitable for your intended
application. You assume all risks and liability associated with such use.
Any statements related to the product which are not contained in 3M’s
current publications, or any contrary statements contained on your
purchase order shall have no force or effect unless expressly agreed
upon, in writing, by an authorized officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a
period of one (1) year from the date of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. If this product is defective within the warranty period stated
above, your exclusive remedy shall be, at 3M’s option, to replace or repair
the 3M product or refund the purchase price of the 3M product. Except
where prohibited by law, 3M will not be liable for any loss or damage
arising from this 3M product, whether direct, indirect, special, incidental or
consequential regardless of the legal theory asserted.
Inch
[mm]
Tolerance Unless Noted
.0 .00 .000
Inch ±.1 ±.01 ±.010
[ ] Dimension for
Reference only
Number of Conductors 3M Part Number Dimension A .02
14 (7 Pair) 3644X/14 .22 [ 5.6 ]
16 (8 Pair) 3644x/16 .23 [ 5.8 ]
20 (10 Pair) 3644X/20 .24 [ 6.1 ]
26 (13 Pair) 3644X/26 .25 [ 6.4 ]
36 (18 Pair) 3644X/36 .29 [ 7.4 ]
40 (20 Pair) 3644X/40 .30 [ 7.6 ]
50 (25 Pair) 3644X/50 .32 [ 8.1 ]
68 (34 Pair) 3644X/68 .37 [ 9.4 ]
80 (40 Pair) 3600X/80 .39 [ 9.9 ]
100 (50 Pair) 3600X/100 .44 [11.2 ]
Electrical
Voltage Rating: USA: N.E.C. 725, CL2 Canada: 150V EU: <50V
Insulation Resistance: (Primary Cable) >1x1010 Ω /10 ft. [ 3m ]
Unbalanced Balanced
Characteristic Impedance: 63 Ω100 Ω
Capacitance: 24.2 pF/ft. [ 79.4 pF/m ] 15.3 pF/ft. [ 50.2 pF/m ]
Inductance: .10 µH/ft. [ 0.33 µH/m ] .15 µH/ft. [ 0.49 µH/m ]
Propagation Delay: 1.54 ns/ft. [ 5.05 ns/m ] 1.54 ns/ft. [ 5.05 ns/m ]
Velocity of Propagation: 66% 66%
Note: Unbalanced is measured between conductors within a pair with one conductor connected to the shield.
Balanced is measured between conductors within a pair with the shield floating.
TS-0826
Pair Identification
Pa
i
rs
Cond
1st Conductor
Cond
2nd Conductor
Pairs Cond Solid Band Cond Solid Band
1 1 White Tan 2Tan White
2 3 White Brown 4 Brown White
3 5 White Pink 6 Pink White
4 7 White Orange 8 Orange White
5 9 White Yellow 10 Yellow White
611 White Green 12 Green White
7 13 White Blue 14 Blue White
8 15 White Violet 16 Violet White
9 17 White Gray 18 Gray White
10 19 Tan Brown 20 Brown Tan
11 21 Tan Pink 22 Pink Tan
12 23 Tan Orange 24 Orange Tan
13 25 Tan Yellow 26 Yellow Tan
14 27 Tan Green 28 Green Tan
15 29 Tan Blue 30 Blue Tan
16 31 Tan Violet 32 Violet Tan
17 33 Tan Gray 34 Gray Tan
18 35 Brown Pink 36 Pink Brown
19 37 Brown Orange 38 Orange Brown
20 39 Brown Yellow 40 Yellow Brown
21 41 Brown Green 42 Green Brown
22 43 Brown Blue 44 Blue Brown
23 45 Brown Violet 46 Violet Brown
24 47 Brown Gray 48 Gray Brown
25 49 Pink Orange 50 Orange Pink
26 51 Pink Yellow 52 Yellow Pink
27 53 Pink Green 54 Green Pink
28 55 Pink Blue 56 Blue Pink
29 57 Pink Violet 58 Violet Pink
30 59 Pink Gray 60 Gray Pink
31 61 Orange Yellow 62 Yellow Orange
32 63 Orange Green 64 Green Orange
33 65 Orange Blue 66 Blue Orange
34 67 Orange Violet 68 Violet Orange
35 69 Orange Gray 70 Gray Orange
36 71 Yellow Green 72 Green Yellow
37 73 Yellow Blue 74 Blue Yellow
38 75 Yellow Violet 76 Violet Yellow
39 77 Yellow Gray 78 Gray Yellow
40 79 Green Blue 80 Blue Green
41 81 Green Violet 82 Violet Green
42 83 Green Gray 84 Gray Green
43 85 Blue Violet 86 Violet Blue
44 87 Blue Gray 88 Gray Blue
45 89 Violet Gray 90 Gray Violet
46 91 White – 92 Tan –
47 93 Gray – 94 Brown –
48 95 Blue – 96 Pink –
49 97 Violet – 98 Orange –
50 99 Green – 100 Yellow –
