GORE® Space Cables and Assemblies: Symmetrical Interconnects
In space, signal speed and integrity can be the difference between mission success and failure. Small, lightweight and extremely flexible, GORE® Symmetrical Interconnects deliver transmission rates up to 1 Gbit/s while withstanding the harsh conditions of space.
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Overview
Improve Signal Transmission for Spacecraft Electronics
Signal speed and integrity are essential for effective communication among spacecraft components. Cables — the lifeline of data transmission — are often run through very tight spaces in the spacecraft. For cables to reliably maintain signal integrity, they need to be flexible, and they need to be tough.
GORE Symmetrical Interconnects offer the best combination available for spacecraft component connections: solid mechanical durability, and excellent signal integrity. Small, lightweight and extremely flexible, these balanced, single-twinax cables deliver data transmission rates as high as 1 Gbit/s to maintain outstanding signal integrity.
The cables meet the stringent requirements of ESCC-3902/002, and are listed on the ESA QPL (Qualified Parts List) — providing the quality assurance critical to mission success in outer space.
The Science Behind the Cables

ePTFE in our cables helps to reduce interference between electrical systems.
The key to the outstanding performance of Gore symmetrical interconnects is the proprietary material used in the cable insulation: expanded polytetrafluoroethylene (ePTFE).
By incorporating ePTFE into the cables, Gore is able to provide tight impedance control to reduce interference, with balanced transmission between separate lines within the cable. The microstructure of the ePTFE material makes Gore symmetrical interconnects lighter than other cables with comparable performance and minimizes the problems associated with balancing difficult mass budgets.
Features & Benefits
GORE Symmetrical Interconnects dependably feature:
- high signal speed up to 1 Gbit/s
- high density/reduced mass
- balanced, shielded lines
- high-speed link among units
By pairing these features with the material benefits of PTFE, our cables deliver:
- excellent compatibility among system components
- reduced costs for system integration and maintenance
- design flexibility of a modular system
- improved reliability from rugged materials used in construction
- valued reliability delivered from an ESA-qualified and a DIN EN ISO 9001:2000-certified manufacturing facility
Additionally, Gore’s worldwide engineering team provides sales and technical support. If you have any questions about GORE® Symmetrical Interconnects, please contact us.
Applications
Aboard spacecrafts, GORE Symmetrical Interconnects are typically used in:
- digital signal processors
- high-resolution cameras and sensors
- high-speed subsystem interconnects
To date, many critical missions have incorporated our symmetrical interconnects, including:
- European Remote Sensing Satellite (ERS1/ERS2)
- Polar Platform
- ENVISAT satellite
- XMM space observatory
- International Space Station (ISS)
- INMARSAT
Specifications
All Gore symmetrical interconnects meet these technical specifications according to ESCC 3902/002 and are listed on the ESA QPL.
Property | Value |
---|---|
Operating temperature range | -200°C to +180°C |
Maximum temperature for short periods | 260°C |
Dielectric material | Expanded PTFE |
Outer jacket | PFA |
Conductor construction | Concentric silver-plated copper |
Operating voltage | 100 V RMS |
Maximum weight | 36 g/m |
Maximum diameter | 5.2 mm |
Bending radius | 10 x outer diameter (repeated) or 6 x outer diameter (once) |
Transmission Rate | Up to 1 Gbit/s |
Maximum capacitance: conductor to conductor | 68 pF/m |
Ordering Information
GORE Symmetrical Interconnects vary by gauge size and impedance. Refer to your application to determine the appropriate part number, and please contact us with any questions.
Part Number | Gauge Size (AWG) | Impedance (ohm) |
---|---|---|
GBL-075-24 | 24 | 75 |
GBL-100-22 | 22 | 100 (with drain wire) |
GBL-120-30 | 30 | 120 |
GBL-120-28 | 28 | 120 |
GBL-120-26 | 26 | 120 |
GBL-120-24 | 24 | 120 |
Resources
Learn more about GORE Symmetrical Interconnects in a data sheet and a white paper discussing the properties of cables that ensure peak electrical performance.

Data Sheet: GORE® Space Cables and Assemblies Symmetrical Interconnects
Data Sheets, 1.14 MB
Recent News
Event
Visit Gore at the Army Aviation Mission Solutions Summit (AAAA)
April 26, 2023 - April 29, 2023
Stop by Booth 1023 and ask to see our demonstrations to watch how GORE® Cables and Materials perform reliably before and after installation and over time. We’re also eager to hear about your latest airframe and aviation system developments and talk with you about our solutions to ensure mission performance and aircrew protection for FARA, FLRAA and enduring fleet.
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W. L. GORE & ASSOCIATES WINS SUPPLIER OF THE YEAR AWARD FROM BAE SYSTEMS
Posted April 11, 2023
W. L. Gore & Associates (Gore) announced that last week it was one of 13 companies to win a “Partner 2 Win” Supplier of the Year award from BAE Systems for Gore’s high-performance cabling supporting countermeasure and electromagnetic defense solutions. In addition, Gore also received a Silver Supplier Award for best-in-class performance and contributions to supply chain success.
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W. L. Gore & Associates Recognized for Excellence by Northrop Grumman
Posted March 29, 2023
W. L. Gore & Associates today announced that earlier this month it was recognized by Northrop Grumman with a Quality Excellence Award as part of Northrop Grumman’s Supplier Excellence Award program.
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