MS27508E10F35SN | MIL-DTL-38999 Series II 13-Socket Square Flange Receptacle
The MS27508E10F35SN is a size 10 high-density receptacle with 13 socket contacts. Features a back-panel square flange mount and “E” series environmental protection.
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MS27508E10F35SN Low-Profile Back-Panel Mounting Efficiency
The MS27508E10F35SN is engineered for specialized electronic grids where space behind the mounting panel is at a absolute premium. As a Type 27508 receptacle within the MIL-DTL-38999 Series II framework, it is specifically designed for back-panel square flange mounting. This configuration allows the connector shell to sit more flush with the equipment chassis, significantly reducing the internal footprint compared to standard front-mount versions. This low-profile architecture is a critical advantage in dense avionics bays and compact medical instrumentation, where every millimeter of clearance is necessary for cable routing and thermal management.
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 (Normal) | Quick bayonet coupling |
10-35 High-Density Layout and Electrical Reliability
In its size 10 shell, the MS27508E10F35SN facilitates thirteen independent signal channels using the 10-35 insert arrangement. These channels utilize Size 22D socket contacts, which are precision-machined from copper alloy and finished with gold plating to ensure maximum conductivity. The “SN” designation confirms that the receptacle is equipped with female socket contacts and uses the “N” (Normal) polarization keyway for standard mating alignment. Despite the high concentration of contacts, the dielectric insert provides superior insulation resistance, ensuring that the 13-pole interface maintains signal purity and prevents crosstalk during high-speed data transmission in aggressive electromagnetic environments.
"E" Series Environmental Hardening
The MS27508E10F35SN is built to meet the “E” class environmental specifications, which denote robust resistance to moisture, dust, and temperature extremes. This is achieved through the use of high-resilience fluorosilicone gaskets and rear grommets that create a moisture-proof barrier around each individual wire termination. The “F” finish indicates an electroless nickel plating over the aluminum alloy shell, providing excellent corrosion resistance and superior shell-to-shell conductivity. This conductive finish is essential for EMI/RFI shielding, ensuring that the MS27508E10F35SN acts as a stable gateway for sensitive signals in complex industrial and aerospace electronic systems.
Mechanical Stability and Bayonet Coupling
Reliability in high-vibration environments is a core mandate of the MS27508E10F35SN. It features the signature three-point bayonet coupling system of the Series II, allowing for a secure and positive lock with only a 120-degree turn. This quick-mating mechanism provides tactile and visual feedback, ensuring that the connector is fully seated even in restricted visibility conditions. The square flange mounting provides a stable four-point attachment to the chassis, distributing mechanical stress evenly across the mounting surface. This combination of a stable mounting base and a vibration-proof bayonet lock makes the MS27508E10F35SN a durable and future-proof interconnect solution for demanding field operations.
Mechanical Stability and Bayonet Coupling
Reliability under mechanical stress is a fundamental feature of the MS27508E10F35SN, which utilizes the signature three-point bayonet coupling system of the MIL-DTL-38999 Series II. This mechanism allows for a rapid and secure lock with a 120-degree turn, providing tactile confirmation that the connector is fully mated. The square flange provides a stable four-point attachment to the chassis, distributing vibration loads evenly and preventing mechanical fatigue at the mounting site. This combination of a secure locking system and a stable mounting base makes it a future-proof interconnect solution for demanding field operations.
FAQ
What is the primary advantage of the MS27508 back-panel mount?
What is the primary advantage of the MS27508 back-panel mount?
It allows for a more flush external appearance and protects the mounting hardware inside the chassis, which is ideal for compact and ruggedized equipment.
How many contacts are in the 10-35 layout?
How many contacts are in the 10-35 layout?
The 10-35 arrangement provides thirteen Size 22D contacts, offering a very high signal density for such a small shell size.
Does the "E" class provide moisture protection?
Does the "E" class provide moisture protection?
Yes, Class E signifies environmental sealing including a rear grommet and interfacial seals to protect against moisture and dust ingress.
Can the contacts in MS27508E10F35SN be replaced?
Can the contacts in MS27508E10F35SN be replaced?
Yes, it uses rear-release crimp contacts, allowing for individual wires to be inserted or removed using standard tools for maintenance and repair.
Is the "F" finish suitable for aerospace use?
Is the "F" finish suitable for aerospace use?
Absolutely. The electroless nickel (F) finish is standard in aerospace for its lightweight, highly conductive, and corrosion-resistant properties.
Certification
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