Spring Loaded Electrical Contact Pins

Spring-loaded electrical contact pins

Spring-loaded contacts, also known as “pogo pins,” are commonly used to establish electrical contact between two objects whose relative mechanical position cannot be well-controlled, or a connector system tolerant of frequent mating/unmuting cycles is desirable. They consist of a plunger (or head), barrel (or body), and a fully encapsulated fine spring, to provide the spring force required to maintain positive contact.

Alternatives to spring-loaded electrical contact pins

Some alternatives to spring-loaded electrical contact pins include spring leaves that separate as they are penetrated by the male blade. This is more reliable and can carry more current than spring-loaded pins.

devices that use pogo pins

Pogo pins are used in many modern electronic applications and in the electronics testing industry. They are commonly used to connect USB cables, power cords, and other peripheral devices to laptops, tablets, and other handheld devices. They are also used to establish the connection between a charging dock and the device being charged. Pogo pins are generally used for precise connection in mobile phones, portable electronic devices, communications, automobiles, medical treatment, aerospace, and other high-current pogo pins electronic products.

What is the difference between pogo pins and other types of connectors?

Pogo pins are unique since most other types of pin mechanisms use a cantilever spring or expansion sleeve. Spring leaves that separate as they are penetrated by the male blade are an alternative to pogo pins.

As an indispensable part of electronic products, the charging pin can save space and significantly reduce the difficulty of assembly. In recent years, electronic products have developed to be thin and light. To save space and cost, electronic manufacturers have rapidly developed charging pin connectors.

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The magnetic pogo pin connector force of the working point of the charging pin connector is greater than 80g, and the sticking force is stable at 0.5kgf/pin5.3. Not only that, but the charging needle also has shock resistance. The shock resistance of the charging needle has achieved 10-500HZ vibration frequency for 15 minutes, 1.2mm amplitude, power failure does not exceed 1μ sec, and contact impedance < 100mOhm.

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