Spring pin, also known as Pogopin, is a precision electronic hardware component widely used in high-end precision type electronic equipment. It plays an important role in circuit board testing and is also widely used in aviation, aerospace, military communications and military electronics due to its small size, high precision and light weight. The following is a detailed explanation of the working principle of the spring-loaded pin / Pogopin:

Basic Structure

A Spring Needle/Pogopin usually consists of three separate components, i.e., a needle, a needle shaft, and a spring. The needle is in close contact with the syringe by means of the elastic force exerted by the spring, which creates a channel for the transmission of current and ensures that the current is transmitted from the contact end of the needle to the contact end of the syringe. The needle shaft must ensure that the resistance between the spring-loaded needle and the contact end is low so that a stable current can be transmitted. That is why spring-loaded needles are usually gold-plated in order to ensure reliable contact. The spring provides the necessary contact force and must be able to maintain its contact force after hundreds of thousands of cycles of life.Pogopin's syringe carries the needle shaft and the spring, through which the electrical signal or current flows to the PCB or wire.

Principle of operation

The principle of operation of the spring-loaded needle/Pogopin is based on the compression and extension of a spring to change its working height to match the spacing between the connected parts. The tension of the spring ensures the contact strength between the parts and avoids gap breakage. When the needle is fixed to the butt joint, the spring provides the contact force, which ensures the stability of the contact.

Advantages

The advantage of spring-loaded needles/Pogopin is that it simplifies assembly and saves costs, as they can be automated, significantly reducing manual assembly time. Different Pogopins are designed to increase current stability to a greater extent by increasing the contact to the inside of the pin.Pogopins are turned by high precision machines and then riveted and pressed by other machines without the need for moulds. In addition, Pogopin is easy to insert and will not be accidentally dislodged, the male and female ends can be used by contacting the conduction. Pogopin is a precision electronic hardware with very small tolerance, Pogopin has a longer service life compared to other connectors, the mechanical life is higher up to 1 million times. As a connector Pogopin has better space and higher current. Rich plating and diversified structural design can meet a variety of scenarios to use, such as waterproof, dustproof, high current and so on.

To sum up, the working principle of spring pin/Pogopin is mainly to change its working height to match the spacing between the connected parts through the compression and extension of the spring, and at the same time, it relies on the contact force provided by the spring to ensure the stability of the contact. Its design and manufacture are constantly evolving and improving to meet the growing market demand.