Now science and technology are developing rapidly. In this article, we will explain in depth the application occasions of the selection method of the aviation plug and the selection method of the aviation plug. Compared with other domestic products, we hope to help you.

There are different classification methods for aviation plugs. According to the frequency, there are high-frequency aviation plugs and low-frequency aviation plugs; according to the shape, there are circular connectors, according to the use: aviation plugs for cabinets, aviation plugs for audio equipment, power aviation plugs, special purpose aviation plugs, etc.

The importance of aviation plugs in electronic systems is often underestimated. Many designers of electronic systems have had similar experiences: using the cheapest aviation plug, but often end up paying a higher cost. Incorrect selection and use of aviation plugs can cause the system to fail to operate properly, product recalls, product liability cases, circuit board damage, rework and repair, which in turn can cause sales and customer churn. Therefore, in the design of electronic products, please do not underestimate the importance of aviation plugs, otherwise it will only make up for the small losses. It can be seen that the importance of choosing a suitable aviation plug for electronic devices.

So, how to choose the aviation plug? Affected by the economic crisis, the cost factor will be taken into account when designing, but in addition, more attention should be paid to the high quality and high stability of the product, as well as the aviation plug Its own design features. I think we can provide some reference opinions for electronic designers through the innovative design of ERNI aviation plugs in the following aspects:

First: Double pole design ideas. In the ERNI aviation plug series, the design concept of the double rod is throughout. Visually speaking, the double-bar design can be described as "one arrow, two carvings". Optimized terminal design adapts to high-speed signal transmission and provides higher orientation tolerance. In comparison of inductance, capacitance, impedance, etc., the double rod terminal is smaller than the box-type terminal structure for high-speed applications, and is optimized to achieve the smallest discontinuity. The double pole design allows multiple aviation plugs on a circuit board without plugging or shorting problems, and there is no need for a large number of signals on a single aviation plug. The simple wiring of the double pole can save space, make the aviation plug smaller, and simplify the detection of the welding pin. For example, put 12 on a board. It also reduces rework costs. Practical applications such as telecommunications end user equipment, etc.

Second: no pin design during the assembly process. Traditional stamping will cause bending or deforming the lead due to improper handling. The bending process will cause capillary cracks, which is undesirable from the long-term perspective of the product, and will also affect circuit performance and cost. And ERNI uses direct stamping of the corners. The stamped terminals can avoid the capillary cracks caused by the bending process and ensure a complete electromechanical connection. Pin coplanarity is 100%, controlled to a tolerance of ±0.05mm. 100% surface-mount pin coplanarity detection ensures the reliability of the circuit board assembly process, ensures good soldering, improves the product's excellent rate, and reduces costs. And improve the firmness of the right-angle aviation plug to prevent the aviation plug from being damaged due to improper operation. The term "unbreakable" is very appropriate. Especially suitable for inkjet printer controller, InterfaceModule module interface, etc.

Third: high retention surface mount design. For SMT products, it is generally believed that the retention on the board is poor. Is the PCB retention force of surface-mount termination lower than through-hole termination? The answer is: not necessarily. Through design improvement, PCB retention can be effectively improved. If the welding bracket, the hole (micro hole) on the surface of the lead, and the large solder pad are superimposed, the retention can be improved. In fact, even I/O aviation plugs can also use surface-mount pins. This can be visually compared to "rooting." For example, in the design of X-ray machine, ultrasonic scanner, and robot Ethernet switch.

Fourth: rugged design. To determine the reliability of the aviation plug, at the same time allow the use of flat block crimping tools, the pole plate is fixed on the shell to improve the robustness, to achieve a more superior manufacturing process and increase production. In one word, it is "rock-solid". Specific applications include positron emission tomography scanners, embedded systems for railway cars, etc.

Fifth: High current, small pitch design. With the requirements of miniaturization of automotive electronics and consumer electronics, the design concept of high current and small pitch needs to be considered. Sixth: advanced lock design. ERNI uses a double lock design to meet different needs. The positive lock is designed for strong vibration applications. It is very suitable for automotive and subway applications. The friction lock is designed for general vibration applications. Double locks and double safety insurance ensure a reliable connection, and no special tools are needed to dismantle (repair/replace) cables on site. It is suitable for use in monitors, LED car lights and other designs.

The terminal block used by aviation plugs is an important component of electromechanical components for connecting electrical circuits. Its specifications and quality requirements are very strict. Therefore, the power handling capability of the device is first considered when selecting. Different countries have different standards when determining the power and performance specifications of terminal products, and they do not have the same standard. Therefore, engineers must know how to test the product performance data, not simply from the data sheet.