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 YACT24JJ20HAV00100
The MIL-DTL-38999 III (D38999) harsh environment connector, designated as SKU D38999/24JJ20HA, is a rugged and reliable solution for demanding applications. This particular model is a jam nut receptacle, featuring a composite shell construction with olive drab cadmium plating for enhanced durability. With 30 gold-plated contacts in various sizes, including 8(3), 12(4), 16(13), and 20(10), it offers superior conductivity and mating performance. Rated for 43A and 300V AC/450V DC, this connector is suitable for high-power and high-voltage applications. Its triple start threaded mating type ensures secure connections, while its wide operating temperature range of -65 to 200°C (-85 to 392°F) makes it ideal for use in extreme environments. Certified to MIL-DTL-38999 III standards, this connector is commonly used in military, aerospace, and industrial applications that require reliable performance in harsh conditions.