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MS27508E12B4P Circular Connector
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MS27508E12B4P Circular Connector for Aircraft Avionics Wiring Systems

>Number Of CoresNumber Of Cores 4Pins
Contact DiameterContact Diameter(mm) 2.3 mm
IP RatingIP Rating IP67
Shell MaterialShell Material Aluminum Alloy
Temperature RangeTemperature Range −65°C to +200°C
TerminationTermination Crimp
Rated CurrentRated Current(A) 13A
Rated VoltageRated Voltage(Ac.V) 600V
Test VoltageTest Voltage(Ac.V)1Min 1800V
Insulation ResistanceInsulation Resistance (MΩ) ≥5000MΩ
Contact ResistanceContact Resistance (MΩ) ≤3MΩ
CertificationCertification CE, RoHS,BASCI,ISO9001
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The MS27508E12B4P circular connector is a high-performance interconnect solution designed for aircraft avionics wiring systems and other demanding aerospace applications. Built to meet stringent military specifications, this connector provides reliable electrical connections in environments where durability, stability, and safety are critical.

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Its robust construction ensures excellent resistance to vibration, temperature variations, and harsh operating conditions commonly found in aviation and defense electronics. The MS27508E12B4P connector is widely used in avionics modules, flight control systems, and onboard electronic equipment where dependable signal and power transmission is required.

Engineered for long-term reliability, this connector offers secure mating, stable electrical performance, and easy integration into aerospace wiring systems. It is an ideal choice for manufacturers and integrators seeking dependable circular connectors for mission-critical applications.

Item

Parameters

Number of Cores

4Pins

Gender

Male/Female

Housing Material

Aluminum Alloy

Cores Material

Brass Plated with Gold

Insulator Material

PEFT

Locking System

Bayonet Coupling

Temperature Range

-65°C to +200°C

Rated Current (A)

13A

Rated Voltage (AC.V)

600V

Test Voltage (AV.C)1Min

1800V

Insulation Resistance (㏁)

5000㏁

Contact Resistance (㏁)

≤3㏁

Termination

Crimp


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Customer Reviews

   

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   Built for Longevity


EchoTrailblaze  2026-02-04

These connectors withstand repeated use while maintaining excellent performance.
   Accurate Contact Alignment!!!


SkyRidge  2026-02-04

Pins and sockets line up perfectly, ensuring secure and reliable connections.
   Reliable Performance Under Pressure


SilverVoyage  2026-02-04

Maintains consistent electrical contact even under vibration or heavy use.
   good for Critical Equipment


NorthboundPilot  2026-02-04

Highly dependable MS27505 Connectors, perfect for mission-critical projects and professional setups.
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