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 YACT24MH55ADV00100
The D38999/24MH55AD is a MIL-DTL-38999 III (D38999) jam nut receptacle, part of the DEUTSCH 38999 Series III Composite Connectors. Designed for harsh environments, this connector features 55 contacts in a size 20(55) configuration, accommodating amperages up to 7.5 A. With a voltage rating of 600 V AC, 850 V DC, and 1800 Vrms, it offers reliable power and signal transmission. The composite shell with electroless nickel plating ensures durability and conductivity, meeting stringent military specifications. Operating in temperatures ranging from -65 to 200 °C (-85 to 392 °F), this connector is suitable for a wide range of applications, from aerospace to industrial machinery. Its triple start threaded mating type and keyway polarization ensure secure connections in demanding operating conditions. RoHS non-compliant.