Edge Contacts

Card Edge Connectors - Contacts

Definition:
Card edge connectors, also known as contacts, are electrical components designed to establish a connection between a printed circuit board (PCB) and another electronic device or circuit. They are typically found on the edge of a PCB, where they can interface with a complementary connector on another board or device.

Function:
The primary function of card edge connectors is to facilitate the transfer of electrical signals and power between two components. They are designed to handle multiple connections simultaneously, allowing for the transfer of data, power, and ground connections in a compact and efficient manner. Card edge connectors can be found in various applications where a reliable and secure connection is required, such as in computer memory modules, expansion cards, and other electronic devices.

Applications:
1. Computer Hardware: Card edge connectors are commonly used in computer systems for memory modules (DIMMs), graphics cards (PCIe), and other expansion cards.
2. Telecommunications: They are used in telecommunications equipment for signal transmission between circuit boards.
3. Industrial Automation: In industrial settings, they can be used for connecting control boards to sensors and actuators.
4. Consumer Electronics: Card edge connectors can be found in various consumer electronics, such as gaming consoles and digital cameras.

Selection Criteria:
When selecting card edge connectors, consider the following criteria:
1. Number of Contacts: The number of pins or contacts required for the application.
2. Current Carrying Capacity: The amount of current the connector can handle without overheating or failing.
3. Voltage Ratings: The maximum voltage the connector can safely handle.
4. Signal Integrity: The ability of the connector to maintain signal quality over its length.
5. Mechanical Strength: The durability and robustness of the connector to withstand repeated insertions and removals.
6. Environmental Resistance: The connector's ability to resist corrosion, moisture, and other environmental factors.
7. Size and Form Factor: The physical dimensions and shape of the connector to ensure it fits within the design constraints of the device.
8. Cost: The budgetary constraints of the project and the cost-effectiveness of the connector.

In summary, card edge connectors are essential components in the electronics industry, providing a reliable and efficient means of connecting PCBs and other electronic devices. Their selection should be based on a combination of technical specifications and practical considerations to ensure optimal performance and compatibility.
Please refer to the product rule book for details.