What is the problem of unstable current when using pogo pins?

　　The pogo pin connector is energized. Most of the pogo pin connector has the needle head obliquely downward to contact the copper wall. The spring of the pogo pin connector is small, so the inner wall of the copper sleeve is required to be smooth. For example, if the pogo pin connector is manufactured in the factory with a non-beveled surface and a flat bottom, most of the current must be conducted through the spring, and the requirements for the spring will also be very high.

　　The surface finish of the high-precision pogo pin connector product is very high. The surface finish of the outer wall of the needle tube is not particularly affected. The most affected is the inner wall. If the surface is very rough, the friction coefficient of the pogo pin will be very high when it is elastically stretched. If it is too large, it may be stuck. Moreover, when the friction coefficient is too large during operation, the outer wall of the needle of the pogo pin and the inner wall of the needle tube will be worn very seriously, which greatly shortens the service life of the Pogo pin connector.

　　1. The size of the pogo pin connector:

　　The size of the pogo pin connector is mainly determined by the strength of the design, the current load and the shape, but the cost of a large diameter will greatly increase. The needle tube of the standard pogo pin connector is usually 1.5, and the needle is 0.9, which is a more economical choice.

　　2. The height of the pogo pin connector:

　　The height of the pogo pin connector is mainly determined by the working height as well as the height during working compression and the accuracy of the matching parts when installing. The general compression stroke is about 70% of the total stroke, and the common working stroke is 1.0mm.

　　3. Current load of pogo pin connector:

　　The current load requirements of the pogo pin connector are different, and the entire design parameters of the pogo pin connector should be changed and adjusted accordingly.

Read recommendations:

M159 2X6.4

M2920 1.4x4.5(1A)Screw Pogo Pin Processing

M2525 1.6x9.8(1A)pogo pin for moilble phone Factory

How to choose the purchase of chip test probes? How to choose a manufacturer

The working principle of pogo pin spring thimble