The design principle of Pogo Pin

Pogo Pin internal structure diagram
1. Profile slope: stable impedance, it is not easy to process compared to the reverse drilling structure
2. Reverse drilling: smooth compression, easy to process, but unstable impedance
3. Ball shape: mainly need to bear the lateral force, the size of the product is limited by the size of the ball
4. Insulation beads: stable impedance, can be too large current, the process is more complicated than the structure of the inclined plane
5. Tail plug type: smooth compression, small needle shaft deflection, high cost
6. Through-hole type: excessive current, simple structure, limited product application