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 YACT24JH21HCV00100
MIL-DTL-38999 III (D38999) harsh environment connectors, designated as SKU D38999/24JH21HC, offer reliable performance in demanding conditions. This specific model is a jam nut receptacle featuring 21 gold-plated pin contacts, suitable for applications requiring a high current carrying capacity of 7.5 A. With a voltage rating of 1250 V DC, 2300 Vrms, and 900 V AC, these connectors ensure robust electrical integrity. Constructed with a composite shell and cadmium olive drab plating, they provide excellent durability and environmental resistance, meeting service rating II standards. Operating efficiently in temperatures ranging from -65 to 200°C (-85 to 392°F), they are ideal for use in aerospace, military, and other high-reliability applications. The D38999/24JH21HC is a RoHS-compliant, hi-rel connector, guaranteeing performance and compliance in critical operating environments.