MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. This connector family includes front and rear wall mount as well as jam nut receptacles, offering RFI grounding plugs for added versatility. With 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes, including coax and twinax options. Constructed with high-strength aluminum shells, these connectors come with a range of plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. They are RoHS compliant and provide reliable performance with a contact mating life of 500 cycles, making them suitable for demanding applications in the military and beyond.
