MS3112E14-12SW | 12-Socket MIL-DTL-26482 Series I Box Mount Receptacle (Size 14, Key W)
The MS3112E14-12SW is a size 14 MIL-DTL-26482 Series I box mount receptacle with 12 socket contacts. Features “E” class environmental sealing and “W” polarization for secure grids.
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MS3112E14-12SW Efficiency of Signal Consolidation in Fixed Electronic Grids
The MS3112E14-12SW is a precision-engineered interconnect solution specifically designed for specialized electronic grids that require a high concentration of signal paths within a mid-sized panel footprint. Utilizing the size 14 aluminum alloy shell, this box mount receptacle facilitates twelve independent conductive channels through its optimized 14-12 insert arrangement. This layout is widely utilized in tactical avionics and localized control systems where twelve Size 20 socket contacts provide the necessary capacity for multi-channel data telemetry and complex analog feeds. By offering a stable, flush-mounted profile on equipment chassis, the MS3112E14-12SW ensures a streamlined mechanical design while maintaining a high level of functional density for complex digital interfaces.
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 | W | quick bayonet coupling |
Tactical Environmental Defense and E-Class Sealing
The “E” class designation of the MS3112E14-12SW signifies an environmentally resistant construction that incorporates an advanced interfacial seal and a rear wire-sealing grommet. This internal sealing grid is engineered to prevent the ingress of humidity, fine particulates, and industrial vapors, ensuring that the twelve conductive channels remain isolated from harsh atmospheric contaminants. The aluminum housing is treated with olive drab cadmium plating over an electroless nickel underplate, providing a certified multi-layered defense against corrosion and surface oxidation. This level of protection is essential for ground-based monitoring stations and ruggedized industrial grids where long-term exposure to moisture and salt air is common.
Alternate W-Keying for Error-Proof System Architecture
The MS3112E14-12SW features the “W” polarization position, providing a unique physical indexing configuration that is rotated from the standard “N” position. In complex system panels where multiple size 14 connectors are co-located, utilizing alternate keys like “W” is a critical safety strategy to prevent accidental cross-mating between different circuits. This physical lockout mechanism ensures that only the specifically keyed plug can be mated with its corresponding receptacle, eliminating the risk of human error during rapid field assembly or equipment overhauls. Combined with the three-point bayonet coupling, the “W” keying ensures a verified and secure connection for high-stakes digital grids.
Precision Socket Fidelity and 14-12 Layout Performance
Within the size 14 housing, the MS3112E14-12SW employs twelve Size 20 socket contacts, offering a reliable female interface for a variety of digital and low-level analog signal sets. These sockets 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 operational life. The socket design provides an extra layer of physical safety, as the conductive elements are recessed within the dielectric insert, preventing accidental short-circuits or contact damage during the mating process. The high-performance dielectric insert provides exceptional insulation resistance between the twelve channels, preventing signal leakage in mission-critical grids.
Structural Robustness and Shielding Effectiveness
The mechanical reliability of the MS3112E14-12SW is supported by its rigid aluminum shell and the standardized four-hole square flange mounting pattern. This configuration provides a solid mechanical bond between the receptacle and the equipment bulkhead, ensuring that the physical stresses of frequent mating cycles are not transferred to sensitive internal electronics. Furthermore, the conductive nature of the cadmium-plated shell provides essential EMI and RFI shielding, protecting the twelve signal lines from external electromagnetic interference. This combination of physical durability and electrical isolation makes the MS3112E14-12SW a dependable choice for ruggedized digital environments where long-term signal reliability is the highest priority.
FAQ
How many signal channels does the MS3112E14-12SW support?
How many signal channels does the MS3112E14-12SW support?
The 14-12 layout provides twelve independent conductive channels using Size 20 socket contacts, offering an excellent balance of signal density and shell size for the 26482 series.
What is the role of the alternate "W" keying position?
What is the role of the alternate "W" keying position?
The “W” keying provides a specific physical orientation that prevents the plug from mating with receptacles keyed to other positions, ensuring safety in multi-connector panels.
What mounting style does the MS3112E14-12SW use?
What mounting style does the MS3112E14-12SW use?
This is a box mount receptacle featuring a four-hole square flange for permanent attachment to a flat panel, chassis, or junction box bulkhead.
What does the "E" class rating signify for this connector?
What does the "E" class rating signify for this connector?
The “E” class signifies environmental resistance, indicating that the connector includes internal seals and grommets to protect against moisture, dust, and other contaminants.
What finish is applied for corrosion protection?
What finish is applied for corrosion protection?
The shell features a standard olive drab cadmium finish over electroless nickel, providing excellent corrosion protection and shell-to-shell conductivity for EMI shielding.
Certification
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