SPECIFICATION CONTROL DRAWING
U31-26C493C124
6/14/2021
Date:
Revision: Issue B
Page 1 of 2
USB CABLE 3.1
THIS SPECIFICATION SHEET FORMS A PART OF THE LATEST ISSUE OF RAYCHEM SPECIFICATION 1200.
CONSTRUCTION DETAILS
Conductor
Insulation
Drainwire
Shield
Wrap
Wrap
Shield
Jacket
Data Pair A (Data)
Dimensions Inches (nom)
Conductor:
AWG 26 19/38 SCHCA
.0185
Insulation:
Foamed FEP
.035
Conductor:
AWG 26 19/38 SCHCA
.0185
Insulation:
Foamed FEP/FEP
.044
Drainwire:
AWG 26 19/38 SCHCA
.0185
Shield:
AWG 40 Silver copper (90% min
coverage)
.101
Wrap:
PTFE .004 (25% min overlap)
.109
Data Pairs B (Data)
Twisted Pair Cable C (Power)
Conductor:
AWG 24 19/36 SCHCA
.0233
Insulation:
FEP
.0395
1 of component A
2 of component B
1 of component C
.222
Cable Assembly
TABLE I
Core:
Data
Pair
Wire Insulation Color
A
1
9 (white) / 5L (light green)
Wrap:
PTFE .004 (25% min overlap)
.230
Shield:
AWG 38 silver copper (90% min
coverage)
.247
Jacket:
FEP .015
Weight:
52.44 lbs/kft
B
1
3L (light orange) / 7L (light purple)
B
2
4L (light yellow) / 6L (light blue)
Power
Cable
C
1
2 (red) / 0 (black)
.277 +.014
Color code designators shall be in accordance with MIL-STD-681.
Designate outer jacket color with a dash number appended to the part number.
Example: Black jacket; U31-26C493C124-0.
ADDITIONAL REQUIREMENTS & RATINGS
Temperature Rating:
200°C
Voltage Withstand:
1500 volts (rms), conductor to conductor
500 volts (rms) shield to shield when applicable per
NEMA WC 27500
Jacket Flaws:
Spark Test 2.5 kV (rms)
Impulse Dielectric 6.0 kV (peak
Flammability: Shall meet the requirements of FAR part 25, Appendix F,
Part 1 when tested in accordance with the 60 degree test specified therein.
Jacket Tensile strength: 2000 psi minimum
Jacket Elongation:
200% min
Cable will be supplied in 50 ft minimum lengths unless otherwise specified
Other codes and suffixes may be added to the part number, as necessary, to capture any additional requirements imposed by the purchase.
Users should evaluate the suitability of this product for their application. TE Connectivity Corporation also reserves the right to make changes in materials or processing, which do not affect compliance with any specification, without notification to Buyer.
This specification sheet takes precedence over documents referenced herein. Referenced documents shall be of the issue in effect on date of invitation for bid.
TE Connectivity Corporation
Raychem Wire & Cable
501 Oakside Avenue
Redwood City, California 94063-3800
1-800-227-8816 Fax: 1-650-361-6297
Raychem, TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks.
© 2021 TE Connectivity Corporation. All rights reserved.
SPECIFICATION CONTROL DRAWING
U31-26C493C124
Date: 6/14/2021
Issue: Issue B
Page: 2 of 2
ELECTRICAL REQUIREMENTS
Data Pair A (Data)
Impedance 90±13.5 ohms
Skew: 100 ps/4.5m (max)
Insertion loss (max): 100 MHz - 2.9 dB/4.5m
200 MHz - 4.2 dB/4.5m
400 MHz - 6.8 dB/4.5m
Data Pairs B (Data)
Impedance: 90±5 ohms
Intra-pair Skew: 15 ps/m (max)
Insertion loss (nom): 630 MHz 1.25 GHz 2.5 GHz 5.0 GHz 7.5 GHz -
2.9 dB/m
4.3 dB/m
5.9 dB/m
6.7 dB/m
7.00 dB/m
Component Data Pair A
Differential NEXT : Maximum limit defined by the vertices:
32 dB at 100 MHz and 2500 MHz.
23 dB at 3 GHz
23 dB at 7.5 GHz
(4.5m sample)
Component Data Pairs B
NEXT and FEXT : Maximum limit defined by the vertices:
21 dB at 100 MHz and 2500 MHz
15 dB at 3 GHz
15 dB at 7.5 GHz
(4.5m sample)
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