3749-20

3M Round Conductor Flat Cable .025 30 AWG Solid, TPE 3749 Series Close spacing permits higher signal density TPE insulation provides excellent transmission properties 30 AWG solid conductors on .025 inch spacing allows for mass termination Zippable for branching or discrete termination Meets SCSI-3 Fast-20 characteristic impedance requirements See the Regulatory Information Appendix (RIA) in the RoHS compliance section of www.3Mconnectors.com for compliance information (RIA E1 & C1 apply) Date Modified: November 1, 2013 TS-0068-F Sheet 1 of 3 Physical Insulation: Material: Thermoplastic Elastomer (TPE) Color: Gray Marking: Standard: None Canadian Option: AWM 20297 105C 150V HB 3M NU C AWM IA 105C 150V FT2 EU <50V Conductors: 30 AWG 0.254 Tinned Solid Copper Electrical Voltage Rating: USA: 150V Canada: 150V 10 Insulation Resistance: (Primary Cable) > 1 10 /10 ft. 3 m Unbalanced Characteristic Impedance: 90 Capacitance: 16.5 pF/ft 54.1 pF/m Inductance: 0.13 H/ft 0.43 H/m Propagation Delay: 1.48 ns/ft 4.86 ns/m Velocity of Propagation: 69% Note: Unbalanced is measured between ground-signal-ground conductors. Environmental -40C to +105C Temperature Rating: Flammability Rating: USA: UL Horizontal Canada: FT2 UL File No.: E42769, Style No: 20297 3M is a trademark of 3M Company. 3 Interconnect Solutions For technical, sales or ordering information call 3M Round Conductor Flat Cable .025 30 AWG Solid, TPE 3749 Series Number of 3M Part Dimension A Dimension B Conductors Number 10 3749/10 0.250 +/- .006 6.35 0.225 +/- .004 5.72 12 3749/12 0.300 .006 7.62 0.275 .004 6.99 14 3749/14 0.350 .006 8.89 0.325 .004 8.26 16 3749/16 0.400 +/- .006 10.16 0.375 +/- .004 9.53 20 3749/20 0.500 .006 12.70 0.475 .004 12.07 24 3749/24 0.600 +/- .006 15.24 0.575 +/- .004 14.61 26 3749/26 0.650 .006 16.51 0.625 .004 15.88 30 3749/30 0.750 +/- .009 19.05 0.725 +/- .006 18.42 Inch 34 3749/34 0.850 .009 21.59 0.825 .006 20.96 mm 36 3749/36 0.900 .009 22.86 0.875 .006 22.23 Tolerance Unless Noted 40 3749/40 1.000 .009 25.40 0.975 .006 24.77 .0 .00 .000 50 3749/50 1.250 .009 31.75 1.225 .006 31.12 Inch .1 .05 .010 60 3749/60 1.500 .012 38.10 1.475 .009 37.47 Dimensions for Reference Only 68 3749/68 1.700 .012 43.18 1.675 .009 42.55 80 3749/80 2.000 .015 50.80 1.975 .011 50.17 100 3749/100 2.500 .015 63.50 2.475 .012 62.87 A B .013 .005 0.33 .025 .002 Typ 0.64 .025 .003 0.64 30 AWG 0.254 Tinned TPE Insulation Solid Copper Conductors Note: Blue marking on one edge of cable designates wire 1. Ordering Information 3749 / XX XX Number of Conductors Blank = Standard (See Table) SF = Splice Free Note: Available in standard 100 ft or 300 ft rolls, please specify when ordering. Contact 3M for availability of TS-0068-F additional conductor counts and/or custom roll lengths. Sheet 2 of 3 3M is a trademark of 3M Company. 3 Interconnect Solutions For technical, sales or ordering information call