For more Information
please call
1-800-Belden1
General Description:
Belden^s .050" pitch gray ribbon cable was designed for general purpose electronic interconnect
applications. The cable provides reliable mass-termination to standard IDC connectors.
Physical Characteristics (Overall)
Conductor
AWG:
# Conductors AWG Stranding Conductor Material
20 28 7x36 TC - Tinned Copper
Total Number of Conductors: 20
Conductor Spacing Center to Center: .050 +/- .002
Conductor Spacing Outside Center to Outside Center: .95 +/- .008
Insulation
Insulation Material:
Insulation Material Wall Thickness (in.)
PVC - Polyvinyl Chloride .010
Insulation Resistance: >10,000 Megaohms
Outer Shield
Outer Shield Material:
Outer Shield Material
Unshielded
Overall Cable
Overall Nominal Thickness: .035 +/- .003
Overall Nominal Width: 1.00 +/- .008
Mechanical Characteristics (Overall)
Operating Temperature Range: -40°C To +105°C
Bulk Cable Weight: 23 lbs/1000 ft.
Applicable Specifications and Agency Compliance (Overall)
Applicable Standards & Environmental Programs
UL AWM Style: 2651
UL Rating: 105°C, 300 V RMS, VW-1
CSA Specification: AWM I A 105°C 300 V FT1
CSA Rating: 105°C, 300 V RMS, FT1
EU Directive 2011/65/EU (ROHS II): Yes
EU CE Mark: Yes
EU Directive 2000/53/EC (ELV): Yes
EU Directive 2002/95/EC (RoHS): Yes
EU RoHS Compliance Date (mm/dd/yyyy): 07/01/2005
EU Directive 2002/96/EC (WEEE): Yes
EU Directive 2003/11/EC (BFR): Yes
CA Prop 65 (CJ for Wire & Cable): Yes
MII Order #39 (China RoHS): Yes
Flame Test
UL Flame Test: VW-1
CSA Flame Test: FT1
Page 1 of 3 09-11-2017
Detailed Specifications & Technical Data
ENGLISH MEASUREMENT VERSION
9L28020 Flat - Gray Ribbon 9L280XX Series
Plenum/Non-Plenum
Plenum (Y/N): No
Surface Printing (Overall)
Surface Printing: BELDEN-T 28 AWG CSA AWM I A 105°C 300 V FT1 LL7874 (UL LOGO) AWM STYLE 2651 VW-1
E12683
Electrical Characteristics (Overall)
Nom. Characteristic Impedance:
Description Impedance (Ohm)
(GS) 150
(GSG) 105
Nom. Inductance:
Description Inductance (µH/ft)
@ 1 MHz (GS) .29
@ 1 MHz (GSG) .20
Nom. Capacitance Conductor to Conductor:
Description Capacitance (pF/ft)
@ 1 kHz (GSG) 18
@ 1 MHz (GS) 10
@ 1 MHz (GSG) 15
Nominal Velocity of Propagation:
Description VP (%)
72
Nominal Delay:
Delay (ns/ft)
1.40 NS/FT. (GSG)
Nom. Conductor DC Resistance:
DCR @ 20°C (Ohm/1000 ft)
68.2 OHMS/1000 FT. MAX.
Nom. Attenuation:
Freq. (MHz) Attenuation (dB/100 ft.)
10 2.8
20 4.8
30 6.5
40 8.3
50 9.8
60 12
70 13
80 14
90 15.8
100 17
Max. Operating Voltage - UL:
Voltage
300 V RMS
Max. Recommended Current:
Current
1 Amp per conductor @ 20°C
Dielectric Withstand Voltage: 2, 000 V RMS
Typical Unbalanced Crosstalk:
Description Pulse Rise Time (NS) (MHz) Near End % (MHz) Far End % (MHz)
10 ft. sample length 34.8 7
10 ft. sample length 53.5 4.7
10 ft. sample length 7 3 3
Notes (Overall)
Notes: GSG=Ground-Signal-Ground Mode
Polarity Identification (Overall)
Polarity Identification: RED POLARITY STRIPE ON #1 CONDUCTOR
Put Ups and Colors:
Item # Putup Ship Weight Color Notes Item Desc
Page 2 of 3 09-11-2017
Detailed Specifications & Technical Data
ENGLISH MEASUREMENT VERSION
9L28020 Flat - Gray Ribbon 9L280XX Series
9L28020 008H100 100 FT 2.600 LB GRAY 20 #28 STR PVC RIBBON (SMI80)
Revision Number: 2 Revision Date: 09-14-2012
© 2017 Belden, Inc
All Rights Reserved.
Although Belden makes every reasonable effort to ensure their accuracy at the time of this publication, information and specifications described herein are subject to error or omission and to
change without notice, and the listing of such information and specifications does not ensure product availability.
Belden provides the information and specifications herein on an "AS IS" basis, with no representations or warranties, whether express, statutory or implied. In no event will Belden be liable for
any damages (including consequential, indirect, incidental, special, punitive, or exemplary damages) whatsoever, even if Belden has been advised of the possibility of such damages, whether
in an action under contract, negligence or any other theory, arising out of or in connection with the use, or inability to use, the information or specifications described herein.
All sales of Belden products are subject to Belden's standard terms and conditions of sale.
Belden believes this product to be in compliance with EU RoHS (Directive 2002/95/EC, 27-Jan-2003). Material manufactured prior to the compliance date may be in stock at Belden facilities
and in our Distributor’s inventory. The information provided in this Product Disclosure, and the identification of materials listed as reportable or restricted within the Product Disclosure, is
correct to the best of Belden’s knowledge, information, and belief at the date of its publication. The information provided in this Product Disclosure is designed only as a general guide for the
safe handling, storage, and any other operation of the product itself or the one that it becomes a part of. This Product Disclosure is not to be considered a warranty or quality specification.
Regulatory information is for guidance purposes only. Product users are responsible for determining the applicability of legislation and regulations based on their individual usage of the
product.
Belden declares this product to be in compliance with EU LVD (Low Voltage Directive 2014/35/EU).
Page 3 of 3 09-11-2017
Detailed Specifications & Technical Data
ENGLISH MEASUREMENT VERSION
9L28020 Flat - Gray Ribbon 9L280XX Series
