| Attribute | Value |
|---|---|
| Product Category: | |
| Manufacturer: | TE Connectivity | Deutsch |
| Manufacturer Part Number: | TE Connectivity | Deutsch D38999/24MH55HB |
| Military Specification: | MIL-DTL-38999 III |
| Series: | DEUTSCH 38999 Series III Composite Connectors |
| Amperage: | 7.5 A |
| Connector Type: | Circular, Receptacle |
| Number of Contacts: | 55 |
| Mount Type: | Jam Nut |
| Contact Plating: | Gold |
| Maximum Operating Temperature: | 200 °C |
| Minimum Operating Temperature: | -65 °C |
| Voltage: | 1800 Vrms, 600 V AC, 850 V DC |
| Shell Size: | 23 |
| Contact Size: | 20(55) |
| Contact Type: | Pin |
| Mating Type: | Triple Start Threaded |
| Shell Plating: | Electroless Nickel |
| Finish/Coating: | Electrodeposited Nickel, Electroless Nickel |
| Number of Positions: | 55 |
| Keyway Polarization: | B |
| Service Rating: | I |
| Shell Style: | Jam Nut Mounting Receptacle |
| Shell Size - Insert Arrangement: | H55 |
| Service Class: | M |
| Shell Material: | Composite |
| Operating Temperature Range: | -65 - 200 °C, -85 - 392 °F |
| Contact Gender: | Male |
| Contact Mating Life: | 1500 Cycles |
| Conductivity: | Conductive |
| Ingress Protection: | Environment Resistant |
| Contact Style: | Pin - 1500-Cycle Contact |
| Shell Type: | Jam Nut Receptacle |
| Product: | Standard Circular Connectors |
| Product Type: | Connector |
| Service Class Detail: | Nickel Plated Composite Shell |
| Part Aliases: | YACT24MH55HBV00100 |
| SKU: | DCHD38999/24MH55HB |
D38999/24MH55HB
| Heilind Number: | DCHD38999/24MH55HB |
| Manufacturer: | TE Connectivity | Deutsch |
| Manufacturer Number: | D38999/24MH55HB |
| 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 D38999/24MH55HB is a high-performance MIL-DTL-38999 III (D38999) connector, designed for harsh environmental conditions. Featuring a jam nut receptacle and triple start threaded mating type, this connector ensures secure and reliable connections in demanding applications. With 55 gold-plated male pin contacts, it offers excellent conductivity and a long mating life of 1500 cycles. The composite shell construction, with electroless nickel plating, provides superior durability and corrosion resistance, suitable for military (service class M) and aerospace (Boeing BACC-approved) use. Operating in a wide temperature range from -65°C to 200°C, this connector meets stringent performance requirements for mission-critical systems. With RoHS-compliant options available, it guarantees environmental compliance without compromising on quality. The D38999/24MH55HB is the ideal choice for high-reliability connectivity in rugged environments.






