Name: MS27508E12B35P MIL-DTL-38999 Series II 22-Pin Flange Receptacle
Brand: STA Connector
SKU: MIL-DTL-38999

MS27508E12B35P MIL-DTL-38999 Series II 22-Pin Flange Receptacle

No.MIL-DTL-38999

Optimize space-constrained panel layouts and internal chassis routing with the MS27508E12B35P MIL-DTL-38999 Series II square flange receptacle. Configured as a Panel Mount Box Receptacle, this high-reliability component features an ultra-short shell body with no rear accessory threads (Class E), drastically reducing the foot-print behind enclosure walls. Housing 22 Male Pins in a high-density 12-35 insert layout, its rugged aluminum shell with an olive drab cadmium finish delivers robust, military-grade protection for advanced avionics, aerospace controls, and tactical communication cabinets.

MIL-DTL-38999 II:

MS27508E12B35P

MS27484T12B35S

Shell Size - Insert:

12-35

Description

Product Advantages

Ultra-Low Profile Box Mount: The rear square flange profile features a short shell body with no rear accessory threads, making it the perfect choice for compact electronic racks where depth space behind the panel is extremely limited.

Expanded Thermal Range (-65°C to 200°C): Unlike standard T-class connectors, the E-class specification guarantees stable mechanical and electrical performance in higher-temperature environments up to 200°C.
50µin Heavy Gold Plating: The 22 removable copper alloy pin terminals are finished with 50.0µin (1.27µm) gold plating, ensuring low contact resistance and gas-tight crimp termination under high-vibration aerospace loads.
Military Standard Cross-Brand Mating: Built in strict accordance with MIL-DTL-38999 Series II specifications, ensuring a 100% direct drop-in replacement for standard parts from Amphenol Aerospace, Souriau, and ITT Cannon.
Rugged Weatherproof Shell: The aluminum housing features an olive drab cadmium over nickel coating, delivering exceptional environment resistance and salt spray protection for maritime and field operations.

Technical Specifications

Product Attributes	Specification Details	Technical Industry Terms
Category	Connectors, Interconnects > Circular Connectors > Circular Connector Assemblies	Product Classification
Military Part Number	MS27508E12B35P-22 Position Circular Connector Receptacle, Male Pins Crimp	QPL Standard Part
Manufacturer (Mfr)	Amphenol Aerospace Operations (Cross-Reference Equivalent)	Brand Intermateability
Series / Grade	JT Series / Military Grade	Product Line Classification
Qualification Standard	MIL-DTL-38999 Series II	Defense Specification
Connector Type	Receptacle, Male Pins	Gender & Body Style
Number of Positions	22 Positions	Contact Density
Shell Size - Insert	12-35	Shell Geometry Layout
Mounting Type	Panel Mount	Installation Style
Mounting Feature	Flange (Square Flange)	Chassis Attachment
Termination Method	Crimp	Wire Attachment Style
Fastening Type	Bayonet Lock	Mating Style
Orientation / Keyway	N (Normal)	Polarization Alignment
Primary Material	Metal	Connector Base Material
Shell Material	Aluminum	Housing Base Metal
Shell Finish	Olive Drab Cadmium over Nickel	Anti-Corrosion Finish
Color	Olive Drab	Exterior Visual Identifier
Contact Material	Copper Alloy	Terminal Base Metal
Contact Finish - Mating	Gold	Conductive Interface
Contact Finish Thickness	50.0µin (1.27µm)	Plating Performance Layer
Ingress Protection	Environment Resistant	Weatherproofing Capability
Shielding	Unshielded (Short Shell Receptacle)	RFI/EMI Protection Status
Operating Temperature	-65°C ~ 200°C	Thermal Operation Bounds
Applications	Aviation, Military	Validated Use Cases

Applications

Aerospace Flight Controls: Space-saving, flush panel mounting inside flight management computers, cockpit instrumentation, and telemetry control bays.
Enclosed Defense Systems: Providing internal signal distribution junctions within missile tracking units, tactical radar enclosures, and rugged defense electronic boxes.
Naval Shipboard Equipment: Marine console dashboards requiring high-density, vibration-proof, and salt-fog-resistant panel ports.

FAQ

Q1: What is the main structural difference between MS27508E12B35P and MS27508T12B35P?
- A1: The main difference lies in the Class designation and temperature performance. MS27508E represents an environmental box mount receptacle with an increased maximum operating temperature of 200°C (compared to 175°C for the T class), making it ideal for more demanding high-temperature environments.
Q2: Which matching plug should I purchase to mate with this receptacle?
- A2: Since this receptacle features 22 Male Pins in a 12-35 arrangement with an N (Normal) orientation, it mates seamlessly with any MIL-DTL-38999 Series II size 12-35 Socket (Female) straight plug, such as our MS27484T12B35S.
Q3: Does the package include the crimp pins, and what tools are required?
- A3: Yes. STA supplies this receptacle complete with the removable, gold-plated crimp pin contacts. For assembly, industry-standard military crimping tools (such as M22520/2-01 tools with the appropriate positioners) are required to achieve a reliable, gas-tight wire connection.

MS27508E12B35P MIL-DTL-38999 Series II 22-Pin Flange Receptacle

Description

Product Advantages

Technical Specifications

Applications

FAQ

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