MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range from -65 °C to 200 °C. Designed for harsh environments, this connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes, including coax and twinax options. Constructed with high-strength aluminum shells, these connectors come in different plating options such as cadmium finishes and RoHS certified cadmium-free coatings. Ideal for military and industrial applications, they ensure reliable performance with a service rating of Environment Resistant and a mating life of 500 cycles.
