MS3112E18-32S | 32-Socket MIL-DTL-26482 Series I Box Mount Receptacle (Size 18)
The MS3112E18-32S is a size 18 MIL-DTL-26482 Series I box mount receptacle with 32 socket contacts. Features “E” class environmental sealing and a rugged olive drab cadmium finish.
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MS3112E18-32S Massive Signal Consolidation in Large-Scale Electronic Grids
The MS3112E18-32S is a high-precision interconnect solution specifically designed for specialized electronic grids that require a massive concentration of signal paths within a standardized panel interface. Utilizing the size 18 aluminum alloy shell, this box mount receptacle facilitates thirty-two independent conductive channels through its high-density 18-32 socket arrangement. This layout is a critical asset for modern mission computers and centralized control units where thirty-two Size 20 contacts provide the necessary capacity for vast data telemetry and complex command networks. By offering a flush-mounted profile on equipment chassis, the MS3112E18-32S ensures an optimized mechanical design while maintaining a superior level of functional integration for advanced 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 | N | quick bayonet coupling |
Tactical Environmental Defense and E-Class Sealing
The “E” class designation of the MS3112E18-32S 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 fluids, ensuring that the thirty-two conductive paths 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. This level of protection is essential for ground-based tactical units and maritime sensor grids where equipment is subject to constant exposure to salt air and high moisture levels.
Rapid Bayonet Coupling and Mechanical Reliability
As a MIL-DTL-26482 Series I component, the MS3112E18-32S utilizes a three-point bayonet coupling system for rapid and secure mating with a compatible plug. This design allows for a quick-disconnect interface that can be fully engaged or disengaged with only a partial turn of the coupling nut, providing tactile and audible confirmation of a verified lock. The bayonet mechanism is inherently resistant to self-decoupling even in high-vibration environments, making it a superior choice for vehicle-mounted instrumentation and heavy-duty industrial machinery. This mechanical stability ensures constant electrical continuity for the thirty-two conductive lines, even under severe harmonic stress and mechanical shock.
Precision Socket Fidelity and 18-32 Layout Performance
Within the size 18 housing, the MS3112E18-32S employs thirty-two 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 thirty-two channels, preventing signal leakage in mission-critical grids.
Structural Robustness and Shielding Effectiveness
The mechanical reliability of the MS3112E18-32S 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 thirty-two signal lines from external electromagnetic interference. This combination of physical durability and electrical isolation makes the MS3112E18-32S a dependable choice for ruggedized digital environments where long-term signal reliability is the highest priority.
FAQ
How many signal channels does the MS3112E18-32S support?
How many signal channels does the MS3112E18-32S support?
The 18-32 layout provides thirty-two independent conductive channels using Size 20 socket contacts, offering one of the highest signal capacities for a size 18 shell in the 26482 series.
What mounting style does the MS3112E18-32S use?
What mounting style does the MS3112E18-32S use?
This is a box mount receptacle featuring a four-hole square flange for permanent attachment to a flat panel, equipment chassis, or 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.
Is this receptacle compatible with other Series I brands?
Is this receptacle compatible with other Series I brands?
Yes, it is designed to mate with any MIL-DTL-26482 Series I pin plug of the same shell size (18) and layout (32), provided it utilizes the standard bayonet coupling system.
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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