LEMO connector

16 hours ago

| Working on: Electrical

I am trying to work out what sort of LEMO socket to buy. All I know is it 6 pin with a single key, in one of the smaller sizes, and that the diameter of the plug shaft is approx 9.5mm. I have routed cabling up to the headset connection area to power LEMO style headsets so these can be used instead of the regular GA connectors

Real fucking rabbit-hole.

Can buy a LEMO socket from (looks plasticy, but cheap)

Pilot Communications 6 Pin Lemo Panel Mount Jack (Bose/Lightspeed Headsets)

Pre-wired from (expensive!)

LEMO chassis socket (wired) - from Mendelssohns

Bose 6 Pin Lemo Headset Install Connector Kit | Aircraft Spruce Australia

LEMO selection guides

Solutions_Selection_Guide_web.pdf

There are two ranges of interest

SE_series.pdf - Originals

Interested in indoor keyed, B or S, not sure of size

Not sure what a stepped insert is.

AI:

What is a LEMO stepped insert?

LEMO stepped insert

The stepped insert in LEMO connectors is a design feature that facilitates proper alignment for the connectors. This design is particularly useful in the E Series Connectors, which are known for their ergonomic self-latching Push-Pull system. The stepped inserts allow for easy alignment and blind mating, making it simpler to connect the connectors without the need for precise alignment. This feature is especially beneficial in demanding and harsh environments where the connectors may be subjected to various conditions.

Are LEMO stepped insert compatible with normal insert:

Not compatible with normal inserts

LEMO stepped inserts are not compatible with normal inserts. They are designed specifically for the stepped insert system, which provides easy alignment and blind mating. The stepped inserts are part of the E Series connectors, which are known for their rugged housing and compatibility with S-series inserts in many configurations. This compatibility ensures that stepped inserts can be used with other stepped inserts, providing a seamless connection in various applications.

Also

Are LEMO B series compatible with Redel?

Yes

Yes, LEMO B series connectors are compatible with REDEL connectors. The REDEL® plastic push-pull connectors are manufactured by LEMO® under the REDEL® name, indicating that they share the same reliable contact system and many of the same insert configurations as LEMO’s B series connectors.

So use B series only

https://media.digikey.com/PDF/Data%20Sheets/Lemo%20PDFs/S&B_Series_Catalog.pdf

The shaft of the Bose LEMO was measured to be 9.5mm approx. So dimension A must exceed this by some margin. This rules out the 0B series. This leaves only the 1B series. This is consistent with the REDEL connector only being in available P1

So a candidate connector is EGG-1B-306-CLL

1B size

https://au.element14.com/lemo/egg-1b-306-cll/socket-panel-mount-1b-6way/dp/3817155 - in stock AUD$57.89

Data sheet: Unipole Multipole catalog

REDEL P_series - Redel connectors

Interested in the push-pull series. I have seen reference to Redel P1 in relation to some headsets