D38999/24MH21BC
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 YACT24MH21BCV00100
The D38999/24MH21BC is a MIL-DTL-38999 III (D38999) jam nut receptacle, part of the DEUTSCH 38999 Series III Composite Connectors. With a rating of 7.5 A and 1250 V DC, this circular receptacle features 21 contacts in a size 16(21) configuration. Designed for harsh environments, it has a wide operating temperature range of -65 to 200 °C and is constructed from a conductive composite shell with electroless nickel plating. The triple-start threaded mating type ensures secure connections, while the supplied less contacts option allows for customization. With its II service rating and environmental resistance, this connector is ideal for demanding applications in military, aerospace, and other high-reliability industries.
Details
| Product Category: | |
| Manufacturer: | TE Connectivity | Deutsch |
| Manufacturer Part Number: | TE Connectivity | Deutsch D38999/24MH21BC |
| 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 Socket |
| 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: | C |
| 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: | Female |
| Conductivity: | Conductive |
| Ingress Protection: | Environment Resistant |
| Contact Style: | Less Standard Socket Contacts |
| Shell Type: | Jam Nut Receptacle |
| Product: | Standard Circular Connectors |
| Product Type: | Connector |
| Part Aliases: | YACT24MH21BCV00100 |
| Service Class Detail: | Nickel Plated Composite Shell |
| SKU: | DCHD38999/24MH21BC |
| Environmental Protection: | Yes |
| Entry Style: | Rear Insertion |
| Fluid Type: | M2-V / MIL-DTL-83133 (JP-8) / MIL-PRF-23699 / MIL-PRF-7808 / MIL-DTL-5624 (JP-4,JP-5) / SEA-AMS1424 Type I / Coolanol 25 / MIL-PRF-5606 |
| Weight: | 47.3 g / .1044 lb |
| Hermetically Sealed: | No |
| Insulation Material: | Hard Dielectric/Silicone |
| Environmental Protection Type: | Elastomer Sealed |
| O-Ring Material: | Silicone |
| Feedthrough Type: | No |
| Peripheral Seal Material: | Silicone |
| Keying: | Keyway Polarization C |
| Keying and Polarized Position Locations: | C |
| Number of Signal Positions: | 0 |
| Factory Installed Backshell: | No |
| Number of Power Positions: | 21 |
| Preloaded: | No |
| Contact Quantity (Size 20): | 21 |
| Reverse Gender: | No |
| Contact Quantity (Size 16): | 21 |
| Contact Layout Arrangement: | H21 |
| Assembly Length: | 33 mm / 1.3 in |
| Accepts Wire Insulation Diameter Range: | 1.65 - 2.77 mm / .065 - .109 in |
| Panel Thickness: | .062 - .126 in / 1.58 - 3.2 mm |
| Wire Size: | 24 - 20 AWG / .2 - .52 mm² |
| Alignment Keyed: | Clocking |
| Panel Mount Feature: | With |
| Connector Mounting Type: | Panel Mount |
| Polarization Code: | C |
| Flange: | Jam Nut Flange |
| Mating Retention: | With |
| Mating Alignment Type: | Keyed |
| Durability Rating: | 500 Cycles |
| Circuit Application: | Power |
| Position Locations Omitted: | All |
| Connector and Contact Terminates To: | Wire & Cable |
| Connector Style: | Receptacle |
| Connector System: | Cable-to-Panel |
| Shielded: | Yes |
| Sealable: | Yes |
| Assembly Type: | Electrical Connector |
| Fluid Resistance: | Yes |
| Part Alias: | YACT24MH21BCV00100 |
Compliance
Environmental Initiative Details
| Environmental Initiative: | RoHS |
|---|---|
| Compliant: | Unknown |
| Date of this Information: | Unknown |
| Notes: |