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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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   Exceptional Mechanical Strength


StarCompass  2026-02-04

MS27505 Connectors are extremely robust and perform flawlessly in demanding conditions.
   Compact Yet Resilient!


NovaPath  2026-02-04

Space-saving design without sacrificing durability or stability.
   good for Critical Equipment


NorthboundPilot  2026-02-04

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


CloudHarbor  2026-02-04

Easy to mate and lock, these connectors provide a reliable fit every time.
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