What problems should be considered in the selection of aviation connectors? What problems should be paid attention to in application?

For aviation connector products, in the selection stage, not only the quality issues must be considered, but also the performance requirements of the connector to ensure that the selected aviation connector can meet the application specifications.

the reliability of 1. aviation connector:

An important requirement for aerospace connectors is reliability. According to the application requirements, the connector products must be tested under specific conditions, mainly related to the temperature test and hardness test of the radiation material. These problems are usually related to the plastic parts of the connector, and for the metal parts of the connector, the test is mainly about thermal expansion and contraction. However, connectors contain many different plastics, so it is necessary to examine the individual materials and how they interact. In addition, the connector should be evaluated according to size and weight to ensure the high reliability of the aviation connector.

Data transmission rate of 2. aviation connector:

The data transmission rate is also a consideration for aviation connectors. Although fiber optic connectors are beneficial for most aerospace applications, different glass fiber variants with different radiation resistance can be used, and their suitability and power levels must be carefully checked.

3. the signal stability of aviation connectors;

Radiation affects the signal stability of the satellite aviation connector. In near-orbit and low-orbit applications, these are mostly low-speed signals. It is recommended that shielding can be used, but it will increase weight and cost.

Connectors have a wide range of applications and many types. According to the requirements of different applications, you can choose the corresponding connector products to meet the requirements, but need to consider a variety of application factors.

When talking about the application of wired connection, the important issues that the connector needs to consider are ease of use, such as the current capacity of the USB connector, the signal density, and the reversible and directionless connection through the USB-C, on the contrary, the direction-dependent connector, It is keyed and only allows one way to help guide the user and prevent wrong connection. However, locking connections generally provide better mechanical support and may require crimping.

Some applications require long-distance, high-speed and reliable connections. Generally, optical fiber connectors are widely used. There are three main types of fiber optic connections: single mode, multimode, and plastic fiber. Multi-mode connections allow higher bandwidth, but due to its high dispersion and attenuation rate, it is usually affected in long-distance applications, so it is very suitable for shorter LAN-based connections.

3. When selecting connectors for aerospace and military applications, harsh working conditions may require consideration of various issues. Some connectors have special protection against electromagnetic interference, electrostatic discharge, vibration, and/or moisture. A common decision of the designer is whether the connector should be shielded. Shielded connectors can provide additional protection from unwanted radiation and local magnetic fields, but they are generally larger or more expensive than non-shielded connectors. Some connectors even include damped contacts to help cope with high impact and high reliability applications, and connections that need to be protected from external moisture usually include (or allow) a seal.

4. For high load applications, it is recommended to choose connector products with high current or voltage ratings. Some connectors contain mixed-signal pins to support data and power connections. Generally, the power pin has a larger current capacity and can be thicker, which helps avoid two separate power and data connectors.