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 YACT24MC98PNV00100
The MIL-DTL-38999 III (D38999) Series III Composite Connectors, specifically the D38999/24MC98PN model, are high-performance circular jam nut receptacles designed for harsh environments. With a rugged construction and triple-start threaded mating type, these connectors ensure secure and reliable connections in demanding applications. Featuring 10 gold-plated contacts (20/10 size) and a maximum operating temperature of 200°C, they offer excellent conductivity and thermal stability. Rated for 600V AC, 850V DC, and 1800Vrms, with a current rating of 7.5A, these connectors are suitable for power and signal transmission. The composite shell with electroless nickel plating provides enhanced durability and corrosion resistance, meeting stringent military specifications. With a service class of M and a mating life of 500 cycles, these connectors are ideal for high-reliability systems in aerospace, military, and industrial settings.