Pogo Pin is a kind of precision connector widely used in various fields. The following is a detailed introduction:

Basic Structure

It is composed of three core parts: the plunger, the spring, and the barrel, which are riveted and pre - pressed by precision instruments. The contact surface between the plunger and the spring is mostly bevel - shaped, ensuring that the plunger is in stable contact with the inner wall of the barrel during operation. The current is mainly conducted through the gold - plated plunger and barrel to obtain a stable and extremely low contact resistance.

Surface Treatment

The surface of Pogo Pin is usually gold - plated, and in some cases, the spring is also gold - plated to improve its corrosion resistance, mechanical properties, and electrical properties.

Common Types

• Flat - bottomed Type: The bottom of the barrel is flat - designed, which has good stability and is easy to be soldered to the PCB board.

• Insert - board Type: The tail of the barrel is equipped with a positioning pin, which has a good positioning effect when soldered to the PCB board and is not easy to shift.

• Bending Type: The tail is bent, providing more choices for designers in terms of space utilization.

• Dual - plunger Type: It has a double - ended and double - acting design, suitable for board - to - board bidirectional connection, with more space elasticity.

• Solder - cup Type: It is suitable for the Cable end and is easy to be soldered to the wire.

• Threaded Type: It can meet the special specification requirements of customers and can be customized according to the requirements.

Working Principle

Using the elastic force of the spring, when the Pogo Pin contacts the mating parts such as the PCB board, the plunger is in close contact with the conductive parts such as the copper foil circuit of the other party under the action of the spring, forming a temporary electrical connection to realize the transmission of data, power, or signals. When not in use, the plunger retracts into the barrel under the action of the spring to avoid problems such as short - circuits.

Application Fields

• Consumer Electronics Industry: Such as AI smart glasses, AR/VR devices, electronic cigarettes, TWS earphones, smart watches, etc.

• Automotive Industry: Including smart cockpits, in - car music headrests, water temperature sensors, charging guns, etc.

• Medical Industry: It is also used in devices such as body temperature monitors, electrocardiogram monitors, hearing aids, electric wheelchairs, etc.

• Industrial Field: Robots, industrial tablets, power tools, 3D printers, etc.

• Communication Industry: 5G antennas, data centers, walkie - talkies, servers, signal base stations, etc.