The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed for environmental protection. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes, meeting RoHS certification standards. Perfect for military and industrial applications, these connectors ensure durability and conductivity, with a mating life of 500 cycles.