D38999/26WD97PN | 12-Pin Series III Aluminum Straight Plug (Size 15)
The D38999/26WD97PN is a size 15 MIL-DTL-38999 Series III aluminum plug with a 12-pin hybrid contact layout. Features “W” olive drab cadmium finish and “N” polarization.
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D38999/26WD97PN Hybrid Signal and Power Routing in Size 15 Architectures
The D38999/26WD97PN is a precision-engineered interconnect solution designed for specialized electronic grids that require a versatile mix of power and signal channels within a single interface. Utilizing the size 15 aluminum alloy shell, this straight plug facilitates twelve independent conductive paths through its unique 15-97 insert arrangement. This specific layout is highly valued for its hybrid capability, incorporating both Size 16 and Size 20 contacts. This allows system designers to route primary control signals alongside localized power feeds, making it an essential component for tactical robotic platforms and remote sensing equipment where streamlining cable management is a primary operational goal.
Key Specifications
Shell Material | Voltage Rating | Current Rating | Operating Temp | Ingress Protection | Mating Cycles | Keying & Polarization | Coupling |
|---|---|---|---|---|---|---|---|
Aluminum alloy | ~1000 VAC | ~23 A | -65 °C to +200 °C | IP67 | 500 | N | threaded coupling |
Tactical Environmental Defense and Surface Conductivity
The “W” class finish of the D38999/26WD97PN consists of an olive drab cadmium plating applied over an electroless nickel underplate, creating a multi-layered defense against atmospheric degradation. This finish is specifically certified for 500 hours of continuous salt spray exposure, ensuring the plug remains functional in maritime or coastal tactical zones. Beyond its superior corrosion resistance, the cadmium layer provides excellent surface conductivity, ensuring the shell acts as an efficient extension of the equipment ground. This is vital for maintaining effective EMI and RFI shielding, protecting the twelve internal channels from electromagnetic interference in dense electronic clusters.
Self-Locking Mechanical Integrity for Dynamic Environments
As a Series III straight plug, the D38999/26WD97PN features a triple-start threaded coupling mechanism with an integrated self-locking ratchet. This design facilitates a rapid and secure connection with only one full 360-degree turn of the coupling nut, providing tactile and audible confirmation of a complete mate. The internal anti-decoupling device ensures that the connector remains locked even under the severe harmonic vibrations and mechanical shocks typical of armored vehicle operations or aircraft wing-mounted pods. This mechanical stability ensures constant electrical continuity across the twelve-pin grid, preventing intermittent data loss during high-stress field maneuvers.
Precision Contact Fidelity and 15-97 Layout Stability
Within the size 15 housing, the D38999/26WD97PN utilizes a combination of Size 16 and Size 20 pin contacts, providing a robust interface for mixed-load transmissions. These pins are precision-machined from copper alloy and finished with high-grade gold plating to maintain a low-resistance electrical interface throughout the equipment’s service life. The gold plating protects the contact surfaces from atmospheric oxidation and environmental degradation, even in unpressurized aerospace compartments. The high-performance dielectric insert ensures that each of the twelve signal paths is electrically isolated, maintaining high insulation resistance and preventing crosstalk between power and data lines.
100% Scoop-Proof Architecture and Field Serviceability
The structural reliability of the D38999/26WD97PN is reinforced by its 100% scoop-proof shell design. This feature ensures that the twelve pin contacts are recessed deeply enough within the plug housing to prevent any bending or damage if the mating receptacle is misaligned during the connection process. For long-term logistical support, the plug utilizes a rear-release crimp contact system, allowing technicians to install or replace individual pins using standard military-specification tools without disassembling the entire unit. This combination of physical protection and modular maintainability ensures that the D38999/26WD97PN delivers a low total cost of ownership for mission-critical digital grids.
FAQ
How many contacts are provided in the 15-97 layout?
How many contacts are provided in the 15-97 layout?
The 15-97 layout provides twelve independent conductive channels, utilizing a strategic mix of Size 16 and Size 20 pin contacts for hybrid signal and power needs.
What are the benefits of the triple-start threaded coupling?
What are the benefits of the triple-start threaded coupling?
The triple-start threads allow for rapid mating with a single turn and include an integrated self-locking ratchet that prevents the plug from loosening under high-vibration conditions.
Does the Olive Drab Cadmium finish provide EMI shielding?
Does the Olive Drab Cadmium finish provide EMI shielding?
Yes, the “W” finish is highly conductive and works with the internal grounding fingers to provide 360-degree EMI/RFI protection for the internal conductive grid.
Is the D38999/26WD97PN compatible with standard Series III receptacles?
Is the D38999/26WD97PN compatible with standard Series III receptacles?
Absolutely. As long as the mating receptacle is size 15, has the 97 layout, and uses standard “N” polarization, it will be fully intermateable with this plug.
Can this connector handle high-vibration aerospace use?
Can this connector handle high-vibration aerospace use?
Yes, the self-locking mechanism and robust aluminum construction are specifically engineered to maintain electrical and mechanical integrity under extreme vibration and shock conditions.
Certification
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