There are different appearances depending on the application, but as a whole there is a precision spring structure inside the pogo pin. The surface of the product is generally gold-plated, and the spring should also be gold-plated when the process requires.
The thimble is energized or turned on, most of which are in contact with the copper wall through the oblique downward direction, and the spring bears a small amount, so the inner wall of the copper sleeve is required to be smooth.
The electrical characteristics will actively find the path with the smallest resistance value to conduct the current. If the POGOPIN factory makes a non-beveled surface, but the bottom is flat, most of the current must be conducted through the spring, and the requirements for the spring will be very high.
Pogo pin is a spring-type probe formed by riveting and pre-pressing the three basic components of needle shaft, spring and needle tube through precision instruments. There is a precise spring structure inside. The surface coating of pogo pin is generally gold-plated, which can better improve its anti-corrosion function, mechanical properties, electrical properties, etc. The needle tip has a sharp needle, a grasping needle, a round needle, a knife needle, and the like. Pogo pins are generally used in precision connections in electronic products such as mobile phones, portable electronic devices, communications, automobiles, medical care, aerospace and other electronic products, which can improve the corrosion resistance, stability and durability of these connectors. Since the pogo pin is a very fine probe, it can be used in precision connectors to reduce the weight of the connector and the volume of its appearance, which can make the connector more fine and beautiful.
The amount of current carried by different structures is different, and different structures can also be applied to different functional designs, and the number of contact points will also affect the amount of current.
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History of probe.types of electrodes in electrochemistry