MIL-DTL-38999 Series I connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. Operating within a wide temperature range of -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mounts, jam nut receptacles, and RFI grounding plugs. With 9 shell sizes and 52 insert arrangements available, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, accommodating coax and twinax connections. Constructed with high-strength aluminum shells, they offer plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS certified cadmium-free finishes. Suitable for military applications, these connectors ensure reliable performance with a service rating of E and a mating life of 500 cycles, meeting stringent environmental and conductive requirements.
