MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. With options for front wall mount, rear wall mount, and jam nut receptacles, this harsh environment connector family provides versatility. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes, including coax and twinax. Constructed with high-strength aluminum shells, they come in plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, including RoHS-certified cadmium-free finishes. Ideal for military applications, these connectors ensure reliable performance with features like bayonet coupling, gold contact plating, and a service rating of I. With a straight plug shell style and N keyway polarization, they are designed for environment-resistant box and through bulkhead mounting receptacle types, offering a mating life of 500 cycles.
