D38999/20WA35PN | 6-контактный квадратный фланцевый разъем серии III (размер 9)
The D38999/20WA35PN is a size 9 MIL-DTL-38999 Series III receptacle with 6 pin contacts. Features “W” olive drab cadmium finish and “N” polarization for rugged electronic grids.
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D38999/20WA35PN Micro-Interface Architecture for Space-Constrained Grids
Он D38999/20WA35PN is a specialized interconnect solution designed for high-performance electronic grids where physical volume is at a significant premium. As a size 9 shell, it represents the most compact circular interface within the Серия III framework, making it an essential component for miniaturized aerospace sensors and portable tactical communications equipment. The Type 20 square flange design allows for a permanent, stable mounting on equipment bulkheads, providing a robust gateway for six independent signal channels. By minimizing the footprint of the external interface, the D38999/20WA35PN enables engineers to consolidate more functionality into smaller, lighter enclosures without sacrificing mechanical strength.
Основные характеристики
Материал оболочки | Номинальное напряжение | Текущий рейтинг | Рабочая температура | Степень защиты от проникновения влаги и пыли | Циклы спаривания | Ключевая модуляция и поляризация | Соединение |
|---|---|---|---|---|---|---|---|
Алюминиевый сплав | ~1000 В переменного тока | ~23 А | от -65 °C до +200 °C | IP67 | 500 | N | резьбовая муфта |
Tactical Olive Drab Cadmium Environmental Protection
The “W” class finish of the D38999/20WA35PN features a high-strength aluminum alloy shell treated with olive drab cadmium plating over an electroless nickel underplate. This multi-layered finish is specifically engineered for aggressive field environments, offering an exceptional 500-hour salt spray rating. Beyond its superior corrosion resistance, the cadmium layer provides a high degree of electrical conductivity for shell-to-shell grounding, which is vital for maintaining an effective Faraday cage. This ensures that the six internal signal paths remain isolated from electromagnetic interference (EMI), while the non-reflective matte green surface fulfills the stealth requirements of modern tactical operations.
Универсальная N-ключевая связь и системная совместимость
The D38999/20WA35PN utilizes the standard “N” (Normal) polarization keyway, ensuring maximum intermateability with any standard-issue Series III plug of the same size and arrangement. This universal indexing configuration simplifies global logistics and procurement, as it avoids the complexities associated with specialized alternate keying. The triple-start threaded coupling mechanism provides a self-locking connection that is highly resistant to loosening under severe harmonic vibration or mechanical shock. This standardization ensures that the D38999/20WA35PN can be seamlessly integrated into existing military and industrial supply chains with absolute reliability.
High-Density 09-35 Layout and Contact Reliability
Within its miniaturized size 9 housing, the D38999/20WA35PN incorporates the 09-35 high-density insert arrangement, facilitating six independent conductive paths. These Size 22D pin contacts are precision-machined from copper alloy and finished with high-grade gold plating to ensure long-term electrical stability. The gold plating protects the contact interface from atmospheric oxidation and sulfurization, maintaining low contact resistance over 500 mating cycles. Despite the dense proximity of the pins, the high-performance dielectric insert maintains superior insulation resistance, ensuring signal purity even in high-humidity zones or unpressurized aerospace compartments.
Scoop-Proof Protection and Mechanical Longevity
Reliability in high-stakes environments is further enhanced by the D38999/20WA35PN’s 100% scoop-proof shell design. This feature ensures that the six pin contacts are recessed deeply enough within the housing to prevent any damage if the mating plug is misaligned or tilted during the connection process. This mechanical safeguard is particularly critical for blind-mating scenarios in dense equipment racks where visibility is limited. For long-term field serviceability, the receptacle utilizes a rear-release crimp contact system, allowing technicians to install or replace individual wires using standard tools without disassembling the entire panel mount, ensuring a low total cost of ownership.
Часто задаваемые вопросы
How many pins are provided in the D38999/20WA35PN?
How many pins are provided in the D38999/20WA35PN?
The 09-35 layout provides six independent signal channels using Size 22D pin contacts, offering high density in the smallest available shell size.
В чём преимущество отделки «Оливково-зелёный кадмий» (W)?
В чём преимущество отделки «Оливково-зелёный кадмий» (W)?
It provides the industry-standard for corrosion resistance (500-hour salt spray) and high conductivity for EMI shielding, along with a non-reflective matte surface.
Is the D38999/20WA35PN intermateable with Series I or II?
Is the D38999/20WA35PN intermateable with Series I or II?
No, MIL-DTL-38999 Series III connectors use a unique threaded coupling system that is not compatible with the bayonet-style coupling of Series I or Series II.
What does the "N" stand for in the part number?
What does the "N" stand for in the part number?
The “N” stands for Normal polarization, which is the default keying configuration for universal compatibility with standard Series III plugs.
Can this connector handle aerospace-level vibrations?
Can this connector handle aerospace-level vibrations?
Absolutely. The self-locking triple-start threads and robust square flange mount are specifically designed to maintain mechanical and electrical integrity under extreme vibration.
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