4-1971895-3

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Rectangular Connectors - Headers, Male Pins, specifically 4-1971895-3, are a type of electrical connector used to provide a link between two circuits. They are used to connect a variety of components, including single and multi-pin connectors, and come in a wide variety of shapes and sizes.

The 4-1971895-3, a particular type of Header Male Pin for rectangular connectors, is two-row, four-pin header. It is typically around 5.08mm high, with a 6.35mm width and length of 13.97mm. The female version of this connector is called a Socket Connector and consists of a plastic body, two row pins, and two mounting screws.

The main distinguishing feature of this type of connector, from other rectangular connectors, is the fact that it has a locking mechanism. This ensures that the connection between the two circuits remains secure, no matter how extreme the conditions. To ensure this additional level of security, a tiny pin housed inside a ‘locking’ hole at the end of the female connector extends when the two connectors are mated. This prevents the connection from loosening, as it is impossible to un-mate without counter-rotating the female connector.

The 4-1971895-3 is primarily used as a low-current power connection and signal transfer solution for applications in the automotive, medical, telecommunications, and consumer goods industries. It is a reliable and durable connector, with a relatively low cost per unit, due to its simple design and two-pin configuration.

The working principle behind this connector is that it provides a mechanical and electrical connection between two differently configured circuits or devices. The electrical element of the connection takes place through contact between the male and female pins when the connection is secured in place, via the shearing action of the male pin head against the mating surface of the female connector. This forms an electrical contact point that is maintained in place thanks to the locking hole at the end of the female connector. This is then reinforced by an electrical sealant applied around the circumference of the connector casing, which further ensures that the connection is secure, even in relatively extreme conditions.

The 4-1971895-3 is a robust and efficient connector, and one that has found application in a number of industries. Its robust design, reliable electrical connection, and locking mechanism have ensured its place as one of the more popular types of rectangular connectors.

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