3644 Series, Round,
100-Ohm, Discrete,
Twisted Pair Cable
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
Inch
[mm]
Tolerance Unless Noted
.0
.00 .000
Inch ±.1 ±.01 ±.010
[ ] Dimension for
Reference only
Pair Identification
Pairs Cond
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99
1st Conductor
2nd Conductor
Cond
Solid Band
Solid Band
White Tan
2
Tan
White
White Brown
4
Brown White
White Pink
6
Pink White
White Orange
8
Orange White
White Yellow
10
Yellow White
White Green
12
Green White
White Blue
14
Blue White
White Violet
16
Violet White
White Gray
18
Gray White
Tan Brown
20
Brown Tan
Tan
Pink
22
Pink
Tan
Tan Orange
24 Orange Tan
Tan Yellow
26
Yellow Tan
Tan Green
28
Green Tan
Tan
Blue
30
Blue
Tan
Tan
Violet
32
Violet Tan
Tan
Gray
34
Gray
Tan
Brown Pink
36
Pink Brown
Brown Orange
38 Orange Brown
Brown Yellow
40
Yellow Brown
Brown Green
42
Green Brown
Brown Blue
44
Blue Brown
Brown Violet
46
Violet Brown
Brown Gray
48
Gray Brown
Pink Orange
50 Orange Pink
Pink Yellow
52
Yellow Pink
Pink Green
54
Green Pink
Pink
Blue
56
Blue
Pink
Pink Violet
58
Violet Pink
Pink
Gray
60
Gray
Pink
Orange Yellow
62
Yellow Orange
Orange Green
64
Green Orange
Orange Blue
66
Blue Orange
Orange Violet
68
Violet Orange
Orange Gray
70
Gray Orange
Yellow Green
72
Green Yellow
Yellow Blue
74
Blue Yellow
Yellow Violet
76
Violet Yellow
Yellow Gray
78
Gray Yellow
Green Blue
80
Blue Green
Green Violet
82
Violet Green
Green Gray
84
Gray Green
Blue Violet
86
Violet Blue
Blue
Gray
88
Gray
Blue
Violet Gray
90
Gray Violet
White
–
92
Tan
–
Gray
–
94
Brown
–
Blue
–
96
Pink
–
Violet
–
98 Orange
–
Green
–
100 Yellow
–
TS-0826
Number of Conductors
14 (7 Pair)
16 (8 Pair)
20 (10 Pair)
26 (13 Pair)
36 (18 Pair)
40 (20 Pair)
50 (25 Pair)
68 (34 Pair)
80 (40 Pair)
100 (50 Pair)
3M Part Number
3644X/14
3644x/16
3644X/20
3644X/26
3644X/36
3644X/40
3644X/50
3644X/68
3600X/80
3600X/100
Dimension A .02
.22 [ 5.6 ]
.23 [ 5.8 ]
.24 [ 6.1 ]
.25 [ 6.4 ]
.29 [ 7.4 ]
.30 [ 7.6 ]
.32 [ 8.1 ]
.37 [ 9.4 ]
.39 [ 9.9 ]
.44 [11.2 ]
Electrical
Voltage Rating:
USA: N.E.C. 725, CL2
Canada: 150V
EU: <50V
Insulation Resistance:
(Primary Cable) >1x10
10
Ω
/10 ft. [ 3m ]
Unbalanced
Balanced
100
Ω
Characteristic Impedance:
63
Ω
Capacitance:
24.2 pF/ft. [ 79.4 pF/m ] 15.3 pF/ft. [ 50.2 pF/m ]
Inductance:
.10
µ
H/ft. [ 0.33
µ
H/m ] .15
µ
H/ft. [ 0.49
µ
H/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.
For ordering information, technical information, and product
information, you can reach us at:
Phone:
1-800-225-5373
Fax:
1-800-325-5329
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.
Electronic Product Division
Cable and Assemblies Solutions
6801 River Place Blvd.
Austin, TX 78726-9000
http://www.3M.com/interconnects
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Certificate no. A1124
Registered by Underwriters
Laboratories Inc. to ISO 9002
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40% Pre- consumer waste paper
10% Post-consumer waste paper
Litho in USA.
© 3M 1999 80-6201-4926-2 (7920.0)JHA/TG
PCB Design
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