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.
Environmental
Temperature Rating:
USA: CL2; 75°C or AWM: -20°C to +80°C Canada: 80°C
Canada: FT1
Flammability Rating:
USA: N.E.C. 725, CL2
UL File No.: E118773, Power Limited Circuit Cable CL2: (or AWM Style 2912)
3
Interconnect Solutions
http://www.3M.com/interconnects/
3M is a trademark of 3M Company.
For technical, sales or ordering information call
800-225-5373
3M
™
Shielded/Jacketed, Flat Cable
.050" 28 AWG Stranded, Twisted Pair, PVC/PVC
Number of
Conductors
10 (5 pair)
16 (8 pair)
20 (10 pair)
26 (13 pair)
34 (17 pair)
3M Part Number
1785/10
1785/16
Dimension A
0.63 [16.0]
0.93 [23.6]
1785 Series
Dimension B
0.450 ± .010 [11.43]
0.750 ± .015 [19.05]
C
36 (18 pair)
40 (20 pair)
50 (25 pair)
60 (30 pair)
64 (32 pair)
1785/20
1785/26
1785/34
1785/36
1785/40
1785/50
1785/60
1785/64
1.13 [ 28.7 ]
1.43 [ 36.3 ]
1.83 [ 46.5 ]
1.93 [ 49.0 ]
2.13 [ 54.1 ]
2.63 [ 66.8 ]
3.13 [ 79.5 ]
3.38 [ 85.9 ]
0.950 ± .015 [ 24.13 ]
1.250 ± .015 [ 31.75 ]
1.650 ± .020 [ 41.91 ]
1.750 ± .020 [ 44.45 ]
1.950 ± .020 [ 49.53 ]
2.450 ± .020 [ 62.23 ]
2.950 ± .020 [ 74.93 ]
3.150 ± .020 [ 80.01 ]
Example of alternate twist and flat repeats
Section Through Termination Area
A
B
.050
±
.002 Typ
[ 1.27 ]
Variable Flat-Repeat Length
Suffix Table
Alternative Twist and Flat Repeats
Suffix
Blank
TO
TB
TD
BP
BA
BW
Repeat (in.)
20.0
22.0
7.5
43.0
9.0
10.5
34.0
* 10 Color Repeat
Brown/Tan
Red /Tan
Orange /Tan
Yellow /Tan
Green /Tan
Blue /Tan
Violet /Tan
Gray /Tan
White /Tan
Black /Tan
Flat (in.)
2.0
4.0
1.0
3.0
1.5
2.0
2.0
(Standard)
*.12
±
.03
[ 3.0 ]
Paper
Brown
Tan
.005 [ 0.13 ] Ref
Expanded Copper
Clear PVC Carrier
PVC Primary
Insulation
.026 [ 0.66 ] Min
PVC Jacket
28 AWG, 7 X 36 AWG [ 7 X Ø 0.127]
Tinned Stranded Copper Conductors
Inch
[mm]
2.0
±
.3
[ 51 ]
20.0
±
.7
[ 508 ]
(See note 1)
Tolerance Unless Noted
.0
Inch
±.1
.00
±.05
.000
±.010
[ ] Dimensions for Reference Only
* Caliper in Twist Area is .15 ± .03 [ 3.8 ]
Ordering Information
1785/XX XX XX
Number of Conductors
(See Table)
Blank = Standard
SF = Splice Free
Blank = Standard
Variable Flat-Repeat Length
(See Variable Flat-Repeat Length Suffix Table)
Note:
1. The twist-flat repeat can be specified from 8.5 inches
(16.5 cm) to 48 inches (1.219 m), and the flat can be
specified as anything over 1 inch (2.54 cm)
2. Available in standard 100 ft and 200 ft rolls, please
specify when ordering. Contact 3M for availability of
custom roll lengths or other special requirements.
TS-0308-C
Sheet 2 of 2
3
Interconnect Solutions
http://www.3M.com/interconnects/
3M is a trademark of 3M Company.
For technical, sales or ordering information call
800-225-5373
Regulatory Information Appendix
3M Electronic Solutions Division/Interconnect
EUROPE
Appendix E1: European Union RoHS
Directive 2002/95/EC, Restriction of the Use of Certain Hazardous Substances in Electrical & Electronic Equipment, as
amended by EU Commission Decision 2005/618/EC.
This product is RoHS Compliant 2005/95/EC.
“RoHS Compliant 2005/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of
the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2005/618/EC, unless
the substance is in an application that is exempt under EU RoHS. Unless otherwise stated by 3M in writing, this information
represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
Appendix E2: European Union RoHS
Directive 2002/95/EC, Restriction of the Use of Certain Hazardous Substances in Electrical & Electronic Equipment, as
amended by EU Commission Decision 2005/618/EC.
This product contains lead in the compliant pin area in excess of the maximum concentration value allowed but is
compliant by exemption under EU Commission Decision 2005/747/EC.
“RoHS Compliant 2005/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of
the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2005/618/EC, unless
the substance is in an application that is exempt under EU RoHS. Unless otherwise stated by 3M in writing, this information
represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
Appendix E3: European Union RoHS
Directive 2002/95/EC, Restriction of the Use of Certain Hazardous Substances in Electrical & Electronic Equipment as
amended by Commission Decision 2005/618/EC.
This product contains lead in the solder tail area in excess of the maximum concentration value allowed.
Unless otherwise stated by 3M in writing, this information represents 3M’s best knowledge and belief based upon information
provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
Appendix E4: European Union RoHS
Directive 2002/95/EC, Restriction of the Use of Certain Hazardous Substances in Electrical & Electronic Equipment, as
amended by EU Commission Decision 2005/618/EC, as amended by EU Commission Decision 2005/717/EC, as amended by
EU Court of Justice Decision 2008/C 116/04
This product contains decaBDE in the insulating material in excess of the maximum concentration allowed for finished
products subject to EU RoHS that are placed on the EU market after June 30, 2008.
Unless otherwise stated by 3M in writing, this information represents 3M’s best knowledge and belief based upon information
provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
RIA-2217B-E
Appendix E5: European Union RoHS
Directive 2002/95/EC, Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment, as
amended by EU Commission Decision 2005/618/EC.
This product contains lead in excess of the maximum concentration value allowed but is compliant by exemption under
Item 6 of the Annex to the Directive.
“RoHS Compliant 2005/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of
the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2005/618/EC, unless
the substance is in an application that is exempt under EU RoHS. Unless otherwise stated by 3M in writing, this information
represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
CHINA
Appendix C1: China RoHS
Electronic Industry Standard of the People’s Republic of China, SJ/T11363-2006, Requirements for Concentration Limits for
Certain Hazardous Substances in Electronic Information Products.
This symbol, per Marking for the Control of Pollution Caused by Electronic Information Products, SJ/T11364-2006, means that the
product or part
does not
contain any of the following substances in excess of the following maximum concentration values in any
homogeneous material: (a) 0.1% (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated
diphenyl ethers (excluding decaBDE); or (b) 0.01% (by weight) for cadmium. Unless otherwise stated by 3M in writing, this
information represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
In the event any product is proven not to conform with 3M’s Regulatory Information Appendix, then 3M’s entire liability and
Buyer’s exclusive remedy will be in accordance with the Warranty stated below.
Appendix C2: China RoHS
Electronic Industry Standard of the People’s Republic of China, SJ/T11363-2006, Requirements for Concentration Limits for
Certain Hazardous Substances in Electronic Information Products.
This symbol, per Marking for the Control of Pollution Caused by Electronic Information Products, SJ/T11364-2006, means that
the product or part
does
contain a substance, as detailed in the chart below, in excess of the following maximum concentration
values in any homogeneous material: (a) 0.1% (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or
polybrominated diphenyl ethers (excluding decaBDE); or (b) 0.01% (by weight) for cadmium. Unless otherwise stated by 3M in
writing, this information represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
The numerical reference in the symbol above should not be construed as a representation regarding the product’s life or an
extension of a product warranty. The product warranty is stated below. In the event any product is proven not to conform with
3M’s Regulatory Information Appendix, then 3M’s entire liability and Buyer’s exclusive remedy will be in accordance with the
product Warranty stated below.
RIA-2217B-E
Appendix C3: China RoHS
Electronic Industry Standard of the People’s Republic of China, SJ/T11363-2006, Requirements for Concentration Limits for
Certain Hazardous Substances in Electronic Information Products.
This symbol, per Marking for the Control of Pollution Caused by Electronic Information Products, SJ/T11364-2006, means that
the product or part
does
contain a substance, as detailed in the chart below, in excess of the following maximum concentration
values in any homogeneous material: (a) 0.1% (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or
polybrominated diphenyl ethers (excluding decaBDE); or (b) 0.01% (by weight) for cadmium. Unless otherwise stated by 3M in
writing, this information represents 3M’s best knowledge and belief based upon information provided by third party suppliers to 3M.
The numerical reference in the symbol above should not be construed as a representation regarding the product’s life or an
extension of a product warranty. The product warranty is stated below. In the event any product is proven not to conform with
3M’s Regulatory Information Appendix, then 3M’s entire liability and Buyer’s exclusive remedy will be in accordance with the
product Warranty stated below.
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 time 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 indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of
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