T373J M12 Aviation Plug Connector Black Waterproof Zinc Alloy Shell

• Aviation plug is the popular name of electrical connector, also known as aviation connector, aviation electrical connector, because of the initial use in the aviation field and named. Generally used with the aviation socket, is widely used in navigation, aerospace, aviation, national defense, military, nuclear industry, electricity and other fields, shell material often used magnesium aluminum alloy, stainless steel, durable.

  In the industry management of our country, the electrical connectors and switches, keyboards and so on are collectively referred to as electrical plug components, and electrical plug components and relays are collectively referred to as electromechanical components. The division of connector product types is somewhat confusing, but technically there are only three basic classifications of connector product categories:

  ① According to the connection mode: threaded connection, bayonet (fast) connection, card lock connection, push-pull connection, straight plug connection;

  ② According to shape: round and rectangular (cross section),

  ③ According to the working frequency: low frequency and high frequency (with 3MHz as the boundary).

  The technical parameters of the aviation plug are usually three categories:

  Electrical performance: rated voltage, rated current, contact resistance, voltage resistance and insulation resistance, shielding, rf anti-interference attenuation value

  (2) Mechanical properties: contact number and pinhole, installation and shape, shell material, insulation, contact, mechanical life, etc.

  ③ Environmental technical performance: working temperature, working height, vibration, impact, constant acceleration, sealing, anti-salt spray, anti-humidity, anti-mould performance, etc.

• 1: insulation resistance

  Insulation resistance refers to the resistance value presented by applying voltage to the insulating part of the aviation plug, so as to produce leakage current in or on the surface of the insulating part. It is mainly affected by insulation materials, temperature, humidity, contamination and other factors. The insulation resistance value provided on the sample of aviation plug is generally the index value under standard atmospheric conditions. In some environmental conditions, the insulation resistance value may decrease to an unspecified extent. Also pay attention to the insulation resistance of the test voltage value. Different voltages are applied according to the insulation resistance (M ω)= voltage applied to the insulator (V)/ leakage current (μA), resulting in different results. In the test of aviation plug, the voltage applied is generally 10V, 100V, 500V three grades.

  2: stress

  Voltage resistance is the critical voltage between the insulating part of the contact pair or between the insulating part and the ground, which can withstand higher than the rated voltage in a specified time without causing breakdown phenomenon. It is mainly affected by contact on spacing and creepage distance and geometry, insulating materials and ambient temperature and humidity, atmospheric pressure.

  3: combustibility

  Any aviation plug can not work without electric current, which is the risk of fire. Therefore, the aviation plug is not only required to prevent ignition, but also required to be self-extinguishing in a short time once ignition and fire. In the selection should pay attention to the use of flame-retardant, self-extinguishing insulating material of the aviation plug.