Navigating the Changes in the ESCC Qualified Parts List: 246th Edition Overview

New certificates 

This edition introduces the following new certificates:

• High data rate cable assembly: Certificate 385 has been issued to Axon’Cable, France, for their high data rate cable assembly featuring microminiature rectangular coaxial connectors. These are based on the Axomach and Spacefibre types and are detailed in the ESCC specification 3409/001. This addition underscores the increasing demand for high-performance data transmission capabilities in space environments.
• Microminiature coaxial connectors: Following closely, certificate 386, also awarded to Axon’Cable, covers microminiature rectangular coaxial connectors, including savers and accessories, based on the same Axomach and Spacefibre technologies. These connectors are detailed under ESCC specifications 3401/089 and 3401/090, highlighting a push towards miniaturization and enhanced connectivity in spacecraft designs.

Certificate extensions

The 246th edition extends several existing certificates, ensuring that previously qualified components remain up to date with current standards and technologies.

• Connector Certificates: Certificates such as 149Q, 250L, and 281H, covering connectors from Smiths Interconnect based on types KMC, MHD, and RX, respectively, have been extended. These extensions are listed under various ESCC specifications, reinforcing the ongoing approval of these components for use under rigorous space conditions.
• Other notable extensions include certificate 323E for Exxelia Technologies’ ceramic chip capacitors and 352C for Innovative Sensor Technology IST AG’s resistance temperature detectors. These components are essential for maintaining performance and reliability in space-grade electronics.

Extensions with Rescope

Certificate 99S, for instance, has expanded to include additional variants of Smiths Interconnect’s PCB connectors, now encompassing a broader range of guiding and locking devices. Similarly, Certificate 102M from REL-STPI has been limited to specific variants of non-latching relays, highlighting the dynamic nature of component qualification based on performance and demand.

Editorial Changes

The edition also addresses components phased out due to low demand, such as specific M54HCxx and CMOS4000B products from ST Microelectronics. These removals, prompted by product termination notifications, reflect the evolving landscape of preferred components within the space industry.

The changes in the 246th edition of the ESCC QPL illustrate a continuing evolution towards more robust, efficient, and miniaturized components capable of withstanding the harsh environments of space. For space engineers and manufacturers, staying abreast of these updates is crucial for compliance and innovation in spacecraft design and functionality.