42840-3 Connectors, Interconnects

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Card Edge Connectors - Contacts

Card edge connectors are an important type of board-to-board, cable-to-board, and cable-to-cable interconnects. As a variety of one of the most common types of connectors used in low-power, low-frequency applications, they are mainly used in high-density and automated test and manufacturing processes. The most common type of card edge connectors are the subminiature type and the subminiature type-II, which are standardized for use in the military and aerospace industry. This type of card edge connectors are also known as the Mil-C-23015 series connectors. The 42840-3 card edge connector is also a part of this series of connectors.

42840-3 Application Field and Working Principle

The 42840-3 card edge connector is used in applications such as data and telephone systems, computer and networking equipment, medical and healthcare equipment, automotive electronics, consumer electronics, and instrumentation products. The connector is used primarily as an interconnect between two electrical devices, with one of the devices containing the card edge connector and the other containing a complementary mating connector. The card edge connector contains a housing, typically made of polyester, which contains a set of spring loaded pins or contacts. The contacts are mounted inside the housing and are flush with the outside surface. These contacts are typically made of tin-plated steel or brass, with a nominal voltage rating of up to 300V.

The 42840-3 card edge connector works by having exposed pins on the top and bottom surfaces of the connector. This connector is then inserted into a socket that is either mounted on the electronic device or on the mating connector. When the connector is inserted into the socket, the contacts make contact with the contacts on the socket and create an electrical connection. The connection is held in place by either the force of the spring-loaded contacts or by the positive locking mechanism on the connector itself. Furthermore, the connector provides an environmental seal to protect against water and dust ingress, and has EMI/RFI shielding to prevent interference.

The 42840-3 card edge connector is commonly used for applications where cables are not feasible, as it provides a simple and reliable connection between two devices. It is also a cost-effective solution, as it has a modest price tag and is easily available in a wide variety of different sizes and configurations. Furthermore, it is quite reliable and durable, as it can withstand vibration and harsh environmental conditions. Therefore, the 42840-3 card edge connector is an ideal choice for applications that require a reliable and durable interconnect between two electrical and/or electronic devices.

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