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 YACT24JJ20HCV00100
The D38999/24JJ20HC is a MIL-DTL-38999 III (D38999) composite connector featuring a jam nut receptacle design. With 30 gold-plated contacts, this connector offers high conductivity and is rated for 43 A and 300 V AC/450 V DC. Its rugged construction, with a cadmium olive drab plated composite shell, ensures durability in harsh environments, with an operating temperature range of -65 to 200 °C. Designed for triple-start threaded mating, this connector guarantees secure connections. With a male contact gender and a 1500-cycle contact mating life, it is reliable for mission-critical applications requiring environmental resistance. The D38999/24JJ20HC is a high-reliability solution for aerospace, defense, and other demanding industries.