| Attribute | Value |
|---|---|
| Product Category: | |
| Manufacturer: | TE Connectivity | Deutsch |
| Manufacturer Part Number: | TE Connectivity | Deutsch D38999/24MH21AA |
| Military Specification: | MIL-DTL-38999 III |
| Series: | DEUTSCH 38999 Series III Composite Connectors |
| Amperage: | 7.5 A |
| Connector Type: | Circular, Receptacle |
| Number of Contacts: | 21 |
| Mount Type: | Jam Nut |
| Maximum Operating Temperature: | 200 °C |
| Minimum Operating Temperature: | -65 °C |
| Voltage: | 1250 V DC, 2300 Vrms, 900 V AC |
| Shell Size: | 23 |
| Contact Size: | 16(21) |
| Contact Type: | Less Pin |
| Mating Type: | Triple Start Threaded |
| Shell Plating: | Electroless Nickel |
| Finish/Coating: | Electrodeposited Nickel, Electroless Nickel |
| Number of Positions: | 21 |
| Supplied Less Contacts: | Yes |
| Keyway Polarization: | A |
| Service Rating: | II |
| Shell Style: | Jam Nut Mounting Receptacle |
| Shell Size - Insert Arrangement: | H21 |
| Service Class: | M |
| Shell Material: | Composite |
| Operating Temperature Range: | -65 - 200 °C, -85 - 392 °F |
| Contact Gender: | Male |
| Conductivity: | Conductive |
| Ingress Protection: | Environment Resistant |
| Contact Style: | Less Standard Pin Contacts |
| Shell Type: | Jam Nut Receptacle |
| Product: | Standard Circular Connectors |
| Product Type: | Connector |
| Part Aliases: | YACT24MH21AAV00100 |
| Service Class Detail: | Nickel Plated Composite Shell |
| SKU: | DCHD38999/24MH21AA |
D38999/24MH21AA
| Heilind Number: | DCHD38999/24MH21AA |
| Manufacturer: | TE Connectivity | Deutsch |
| Manufacturer Number: | D38999/24MH21AA |
| ECAD Model: |
Description:
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.
More >>Specifications
Detailed Description
The MIL-DTL-38999 III (D38999) harsh environment connectors offer robust connectivity solutions for demanding applications. Featuring wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, this series provides versatility in design. With 9 shell sizes and 54 insert arrangements available, accommodating M39029 contacts in sizes 22D to 8 twinax, these connectors meet diverse connectivity needs. Constructed from durable aluminum, stainless steel, and lightweight composite materials, they ensure reliable performance in rugged environments. Plating options like olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel offer corrosion resistance. RoHS-compliant and Boeing BACC-approved versions are also available, catering to environmental and aerospace requirements. Suitable for military and industrial applications, these connectors are designed to withstand extreme conditions, with an operating temperature range from -65°C to 200°C. The jam nut receptacle in this configuration features 21 contacts, with a maximum voltage rating of 1250 V DC, 2300 Vrms, and 900 V AC, making it ideal for high-power and signal transmission. Meeting MIL-DTL-38999 III standards, these connectors ensure performance excellence in critical operations.

