M12 Aviation Socket Standard? M12 connector

The aviation plug is equipped with waterproof function, and can be directly cabled on site, with needle and hole type, and there are two forms, one is straight, and the other is elbow, M12 aviation plug has the following product cores: 3 needles 3 holes, 4 needles 4 holes, 5 needles 5 holes, 6 needles and 6 holes, 7 needles and 7 holes, 8 needles and 8 holes and 12 needles and 12 holes. There are also two sets of standards for the direct cable outer diameter of the M12 aviation plug:

The 4-6 standard stipulates that the outer diameter of the cable of the aviation plug is 4mm-6mm, while the 6-8 standard stipulates that the outer diameter of the cable of the aviation plug is the aviation plug and the standard of product structure, the connection thread M12*1. This structure of aviation plug consists of two types, one is straight and the other is 90 degree bent. Both types of aviation plugs have a product number of cores in the form of 3 pins and 3 holes, or 4 pins and 4 holes, 5 pins and 5 holes, 8 needles and 8 holes, etc.

Not only that, but the M12 aviation plug had to meet the environmental requirements set by Rorus.

Aviation plugs are widely used in outdoor light boxes, power equipment, instrumentation, sensors, production automation equipment, steel production equipment, ship machinery industry, etc.

Others ask you for your standard number, you don't know if you don't know, what kind of expert is pretending?

It seems that GB T 11918-2014 is an alternative standard to GB T 11919-2001, the content is about the same, but it is updated.

In general non-standard automation, the most commonly used aviation plugs are M12, M8, M5, M 8', M 8' aviation plugs, etc., Shanghai --- Keyingfa has realized the mass production of threaded interface M12 aviation plugs and sockets, M8 aviation plugs and sockets.

Aviation plugs have the following product features:

1. Waterproof, moisture-proof, rainproof, sun-proof, anti-corrosion.

2. Flame retardant, anti-oxidation, environmental protection (all products are from the green production line).

3. Improve the production process: The connector simplifies the assembly process of electronic products, and also simplifies the mass production process.

4. Easy to maintain: in case of failure, there is no need to clamp the cable, electroplastic sleeve, etc., only need to unscrew the two ends of the waterproof connector, which is very convenient for the maintenance of waterproof products such as LED, solar energy, and geothermal heat.

5. Improve design flexibility: The use of connectors gives engineers greater flexibility when designing and integrating new products, as well as when composing systems with components.

There are many types of a, b, c, d, l, s, t, x, and signal classes and small current classes. Use on the device.

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There are different ways to classify aviation plugs.

According to the frequency, there are high-frequency connectors and low-frequency connectors; According to the shape, there are circular connectors and rectangular connectors; According to the application, there are connectors for printed boards, connectors for cabinets, connectors for audio equipment, power connectors, special-purpose connectors, etc. The following section focuses on the selection of low-frequency connectors (frequencies below 3MHz).

Electrical parameter requirements: Aviation plugs are electromechanical components that connect electrical wiring. Therefore, the electrical parameters of the connector itself are the first thing to consider when selecting a connector.

Rated voltage: The rated voltage, also known as the working voltage, mainly depends on the insulation material used in the connector and the spacing between the contact pairs. Some components or devices may not perform their intended function when the voltage is lower than their rated voltage.

The rated voltage of the aviation plug should in fact be understood as the maximum operating voltage recommended by the manufacturer. In principle, aviation plugs work well below the rated voltage. The author tends to choose the rated voltage reasonably according to the withstand voltage (electrical strength) index of the aviation plug, according to the use environment and safety level requirements.

In other words, the same withstand voltage index can be used to different maximum working voltages according to different use environments and safety requirements. This is also more in line with the objective use case.

Rated current: Rated current is also known as working current. As with the rated voltage, the aviation plug will generally work normally below the rated current.

In the design process of aviation plugs, the rated current requirements are met through the thermal design of the connector, because when the contact pair has a current flowing through, the contact pair will heat up due to the presence of conductor resistance and contact resistance.

When its heat generation exceeds a certain limit, it will destroy the insulation of the aviation plug and form a contact to soften the surface plating, causing failure. Therefore, to limit the rated current, in fact to limit the temperature rise inside the aviation plug from exceeding the specified value of the design.

The problem to be noted in the selection is that for multi-core electrical connectors, the rated current must be derated. This should be paid more attention to in the occasion of high current, such as contact pairs, which generally stipulate that its rated current is 50A, but when 5 cores are used, it should be derated by 33, that is, the rated current of each core is only 38A, and the more cores, the greater the derating.