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 YACT24JH21HBV00100
The MIL-DTL-38999 III (D38999) harsh environment connector, designated as SKU D38999/24JH21HB, is a rugged and reliable solution for demanding applications. This specific model is a jam nut receptacle, featuring a composite shell with olive drab cadmium plating for enhanced durability and environmental resistance. With 21 gold-plated contacts arranged in a triple start threaded pin configuration, it ensures secure and high-integrity connections. Rated for operating temperatures ranging from -65°C to 200°C (-85°F to 392°F) and voltages up to 1250 V DC, 2300 Vrms, and 900 V AC, this connector is suitable for a wide range of military and aerospace applications. Its 1500-cycle contact mating life and II service rating guarantee long-term performance in harsh conditions, making it an ideal choice for hi-rel systems.