This tool is provided for guidance only. Bundle diameters are geometric estimates from published wire dimensions, so you are responsible for verifying fit against real parts and the applicable standards for your application.
Full Boost Consulting Ltd accept no liability for any loss, damage, injury, or cost arising from the use of this tool or reliance on its outputs.
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Geometry only. Each wire is drawn at its finished outer diameter (conductor plus insulation) taken from TE Connectivity control drawings. 55A (55A0111 / M22759/32, tin-coated copper, ETFE, 150°C) and 55M (55M0414, silver-plated alloy, ETFE, 200°C). Wires are packed by a deterministic nearest-fit routine and the bundle diameter is the smallest circle that encloses every wire. Real looms settle differently under tension and tape, so treat this as a tidy-pack estimate, not a guaranteed dimension.
Sleeving uses TE DR-25 (2:1 heat-shrink). A size is recommended that slides over the bare bundle and recovers tight onto it. Sleeved Ø is the bundle plus the size's recovered wall.
Slide-on is how much wider the sleeve is than the bundle before shrinking (ratio of expanded sleeve to bare bundle OD); more makes it easier to fit. It is also quoted as a radial clearance in mm per side.
Bundle / expanded is what percentage of the expanded sleeve the bundle fills. The tool caps this at 80% by default, to leave room to slide the sleeving over the bundle.
Recovery is how far through its shrink range the sleeve travels to grip the bundle: 100% means it recovers fully onto the bundle (bundle at the recovered ID), less means it grips before fully recovering.
Fill is the summed wire OD area divided by the enclosing-circle area. It's a rough measure of how tightly the bundle packs.
Sources: finished-wire diameters from TE Connectivity control drawings (55A0111, 55M0414); DR-25 expanded/recovered diameters and wall thicknesses from the TE DR-25 heat-shrink tubing catalog (1654025).
Disclaimer - don't be a wounder. This tool is provided for guidance only. Bundle diameters are geometric estimates from published wire dimensions, so you are responsible for verifying fit against real parts and the applicable standards for your application. Full Boost Consulting Ltd accept no liability for any loss, damage, injury, or cost arising from the use of this tool or reliance on its outputs.
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