MS3476W12-8PN | 8-Pin MIL-DTL-26482 Series II Plug (Size 12) – Olive Drab Cadmium
The MS3476W12-8PN is a size 12 MIL-DTL-26482 Series II straight plug with 8 pin contacts. Features an olive drab cadmium finish and rear-release crimp contact system.
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MS3476W12-8PN Efficiency of Signal and Power Integration in Series II Grids
The MS3476W12-8PN is an advanced interconnect solution designed for specialized electronic grids that require a balanced interface for both signal and power transmission within a mobile, standardized interface. Utilizing the size 12 aluminum alloy shell, this Series II straight plug facilitates eight independent conductive paths through its 12-8 insert arrangement. This layout is a critical asset for modern industrial control systems and tactical equipment where eight Size 20 pin contacts provide the necessary capacity for multi-channel data telemetry and low-voltage power supply. As a Series II component, it offers improved performance characteristics over earlier designs, ensuring a streamlined yet powerful mechanical interface for complex digital command networks.
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 | quick bayonet coupling |
Tactical Advantages of Olive Drab Cadmium and W-Class Defense
The “W” class designation of the MS3476W12-8PN refers to its olive drab cadmium plating over an electroless nickel underplate, which provides a highly durable and conductive surface required for mission-critical hardware. This specific treatment ensures excellent shell-to-shell conductivity, which is essential for maintaining effective EMI and RFI shielding integrity across the entire connection. Beyond its electrical properties, the olive drab coating offers world-class resistance to salt spray and atmospheric corrosion, protecting the aluminum housing in the most aggressive maritime and field conditions. This finish makes the MS3476W12-8PN a preferred choice for external aerospace panels and ground-based tactical systems where environmental survival is a primary requirement.
Rear-Release Crimp System and Maintenance Reliability
A defining technical feature of the MS3476W12-8PN is its adherence to the MIL-DTL-26482 Series II standard, which utilizes a rear-release crimp contact system. Unlike solder-type connectors, the contacts in this plug are secured by internal metal retaining clips and can be inserted or removed from the rear using specialized tools. This design significantly simplifies field maintenance and repair, as individual damaged wires can be replaced without replacing the entire connector assembly. This mechanical reliability is a vital factor for high-uptime environments such as automated factory floors and mobile communication arrays, ensuring that the eight conductive lines remain secure even under constant mechanical vibration and repetitive deployment.
Precision Pin Fidelity and 12-8 Layout Performance
Within the size 12 housing, the MS3476W12-8PN employs eight Size 20 pin contacts, offering a high-fidelity male interface for a variety of digital signal sets and low-level analog data. These pins are precision-machined from copper alloy and finished with high-grade gold plating to maintain an ultra-low-resistance electrical path throughout the equipment’s lifespan. The gold plating protects the contact surfaces from environmental degradation and mechanical wear during repeated mating cycles, ensuring signal purity for sensitive command loops and data networks. The high-performance dielectric insert provides exceptional insulation resistance between the eight channels, preventing electrical crosstalk and signal leakage in mission-critical grids.
Rapid Bayonet Coupling and Structural Robustness
The MS3476W12-8PN utilizes a three-point bayonet coupling system, allowing for rapid and secure mating with a simple partial turn of the coupling nut. This mechanical interface provides tactile and audible confirmation that the connection is fully locked, which is essential for rapid assembly in high-stress or low-visibility field conditions. The structural robustness of the size 12 aluminum shell ensures that the physical stresses of frequent mating cycles are managed without compromising the internal electronics. This combination of multi-channel connectivity, specialized conductive finish, and rear-release maintenance capabilities makes the MS3476W12-8PN a dependable choice for ruggedized mobile environments where signal integrity is the highest priority.
FAQ
What are the key features of the MS3476W12-8PN?
What are the key features of the MS3476W12-8PN?
This is a Series II straight plug featuring eight pin contacts, a rear-release crimp system, and a highly durable olive drab cadmium finish for maximum corrosion resistance.
How does the rear-release system benefit field maintenance?
How does the rear-release system benefit field maintenance?
It allows individual contacts to be removed and replaced from the back of the connector using a simple tool, eliminating the need to replace the entire connector if a single wire is damaged.
Is the MS3476W12-8PN compatible with Series I receptacles?
Is the MS3476W12-8PN compatible with Series I receptacles?
Yes, MIL-DTL-26482 Series II plugs are designed to be intermateable with Series I receptacles of the same shell size and layout, providing flexibility in system upgrades.
What environmental protection does the "W" finish provide?
What environmental protection does the "W" finish provide?
The olive drab cadmium finish provides up to 500 hours of salt spray resistance and maintains excellent electrical conductivity for superior EMI shielding.
What type of applications use the 12-8 layout?
What type of applications use the 12-8 layout?
The 12-8 layout is commonly used in industrial sensors, communication equipment, and tactical power systems that require multiple signal or low-power channels in a mid-sized shell.
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