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. Available in various mount types including front wall, rear wall, and jam nut receptacles, they offer RFI grounding plugs and utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high strength aluminum shells, these connectors come in different plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS certified cadmium-free finishes available. Ideal for military and industrial applications, they ensure reliable connectivity with gold-plated contacts and a mating life of 1500 cycles. The straight plug configuration, contact size 16(21), and service class II rating make them suitable for demanding environments.
