P20K P28J P32K P48J 2pin 3pin circular aviation connector

Our P20K, P28J, P32K, P48J 2pin/3pin circular aerospace connectors are designed for reliable connections in harsh environments. It has the following significant advantages:
Ruggedness: Made of high quality materials, the shell can effectively resist shock, vibration and corrosion, which can be adapted to the complex use of the aviation field environment, to ensure long-term stable operation.
Good electrical performance: 2pin and 3pin design can meet different circuit connection requirements. Tight contact between pin and jack, excellent conductivity, stable signal transmission, strong power carrying capacity, greatly reducing signal attenuation and power loss.
Convenient installation: rational structural design, easy installation and disassembly operations, can save installation time and labor costs, improve work efficiency.
High protection level: with excellent waterproof, dustproof and anti-fouling performance, high protection level, can effectively avoid external factors on the connector internal damage, to ensure that the normal work in harsh environments.
These circular aeronautical connectors are widely used in aircraft avionics systems, aeronautical instrumentation, communication equipment and other fields, is the ideal choice for aeronautical equipment connection.
  • Brand:

    OLINK
  • Item no.:

    OL-P
  • Product origin:

    China
  • Color:

    Black

In the aerospace field, equipment operation faces extremely harsh environmental challenges. When airplanes are in flight, equipment not only has to withstand severe vibration and high humidity, but also has to function under extreme temperature changes. Our P-Cable connector plugs and sockets are built to withstand these challenges. 


The shell is made of a special alloy that is much stronger than ordinary materials. This design provides the connector with strong anti-vibration and anti-mechanical shock capabilities, and can maintain its integrity under the strong bumps in flight. At the same time, it also has excellent resistance to high and low temperatures, can be - 55 ℃ to 100 ℃ in the extreme temperature range of stable operation, effectively avoiding the connection failure caused by temperature problems. The connector's moisture-proof design ensures that electrical performance is not affected even in high humidity environments.

Aerospace equipment has very high demands on the stability of signal and power transmission. Our P-type connector inserts are made of a special alloy and are treated with a special process that results in a tight contact between the pins and the socket with extremely low resistance. This not only ensures efficient and stable current transmission, but also allows for fast and interference-free signal transmission. Whether it is a complex and sophisticated avionics system or a critical flight control system that concerns flight safety, this connector can realize accurate and reliable connection, greatly reduce signal attenuation and power loss, and build a solid foundation for the stable operation of the equipment.

Contact properties

Contact diameter (mm)
1.5
2.5 3.5 55
Contact resistance (mΩ)
2.5 1 0.5 0.3
Rated current(A)
Total number of contact couples 1-20
10 25 50 100
Total number of contact couples 21-30
8 20 40 80
Total number of contact couples 31-48
7 17.5 35 70

Rated voltage

Working environment
Rated voltage (V)
Withstanding voltage V (50HzAc rms)
Normal temperature
500 1500
Hot and humid condition
500 750
Low air pressure
200 300


In the maintenance and assembly of aerospace equipment, time is of the essence. Our P-type connectors are uniquely designed with a quick plug-in/out structure, which is extremely easy to operate and significantly reduces installation and disassembly time, thus significantly improving work efficiency. At the same time, its unique locking mechanism is a highlight, which can effectively prevent the plug from falling off due to strong vibration and other accidental factors during the flight, effectively guaranteeing a solid connection and providing a solid guarantee for flight safety.

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