MIL-DTL-38999 III (D38999) harsh environment connectors consist of wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. They are offered in 9 shell sizes and 54 insert arrangements, utilizing M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax. 38999 Series 3 connectors are offered in a variety of shell materials, including aluminum, stainless steel, and lightweight composite. They are also available in a wide assortment of plating options, including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel. Selection includes RoHS-compliant, cadmium-free finishes, as well as Boeing BACC-approved designs.
Part Aliases: TE Connectivity | Deutsch YACT24MG39HCV00100
The MIL-DTL-38999 III (D38999) harsh environment connector, designated as SKU D38999/24MG39HC, is a rugged and reliable solution for demanding applications. This specific model is a jam nut receptacle, featuring a composite shell with electroless nickel plating for enhanced durability. With 39 gold-plated contacts (20 size 16 and 19 size 20) arranged in a Triple Start Threaded mating configuration, it ensures secure and low-resistance connections. Rated for 13A, 600V AC, and 850V DC, with a service class of I and a wide operating temperature range from -65 to 200°C (-85 to 392°F), this connector is suitable for mission-critical environments. Its 1500-cycle pin contact design guarantees long-term reliability, making it ideal for military, aerospace, and other high-reliability applications.