Pogo Pin is a spring-type probe formed by riveting the three basic parts of the plunger, tube, and spring through high-precision equipment. Pomagtor provides six pogo pins types, and this article introduces four.

Flat-bottomed pogo pin

The structure plunger is a flat-bottomed type, which is simple to process, lower in cost, and the concentricity of the needle and needle tube is better, but there is a greater risk of non-contact between the needle and the needle tube and power failure, and the contact resistance of the product It is also very large. Products with this structure are generally only used when the product requirements are very low and the current is very small. Now, regular large companies do not use products with this structure.

Pogo pin with the slanted surface

The plunger structure is a slanted surface, the processing is complicated, the cost is high, and the concentricity of the needle and needle tube is poor, but the product needle and the needle tube are in good contact, and the contact resistance is also very small. The main reason is that the spring The elastic force of the needle has a lateral force component, which makes the needle and the needle tube in regular contact. This structure is widely used in pogo pin factories and is only used occasionally with small and medium currents.

Steel ball pogo pin

The structure plunger is a cut-away inclined plane, and a steel ball is added below it. The structure is complicated to process, high in cost, and the concentricity of the needle and the needle is poor, which occupies a large space of the needle. Still, the needle of the product is in good contact with the needle, and the contact resistance is also very small. The component force in the direction makes the needle and tube in regular contact. The steel ball also adds a current flow channel. This structure is widely used in pogo pin factories and is only used occasionally with medium and large currents.

Inner sleeve type pogo pin

The structure plunger is a cut-away inclined plane, and an inner sleeve is added below it. This structure is complex to process, high in cost, and the concentricity of the needle and needle tube is poor. The space occupied by the needle tube is smaller than that of the steel ball type, but the product needle is in good contact with the needle tube, and the contact resistance is also very small. The main reason is that the spring is elastic to the needle. There is a lateral force component, which makes the needle and the needle tube regular contact. A current flow channel is also added to the inner sleeve. This structure is widely used in pogo pin factories and is only used occasionally with medium and large currents.