Card Edge Connectors - Contacts
Card Edge Connectors - Contacts
Definition:
Card Edge Connectors - Contacts are precision-engineered conductive components designed to establish reliable electrical connections between printed circuit boards (PCBs) and other devices. These contacts are integral to card edge connectors, which feature a slot-and-blade design where the edge of a PCB is inserted directly into the connector. The contacts ensure secure mating, optimal signal integrity, and robust mechanical performance in demanding applications.
Types of Card Edge Connector Contacts:
1. Male Contacts (Blades): Typically mounted on the PCB edge, these gold- or tin-plated contacts engage with corresponding female sockets.
2. Female Contacts (Receptacles): Often housed within the connector body, these spring-loaded contacts provide compressive force for stable connections.
3. High-Density Contacts: Miniaturized designs for space-constrained applications, such as telecom or industrial automation.
4. Power Contacts: Reinforced variants capable of handling higher current loads (e.g., for power supply modules).
5. Surface-Mount (SMT) vs. Through-Hole (THT): Variants tailored for different PCB assembly processes.
Purchasing Recommendations:
- Material & Plating: Prioritize gold-plated contacts for corrosion resistance in harsh environments; tin plating offers cost efficiency for standard use.
- Current Rating: Verify the contact s current capacity (e.g., 1A vs. 5A) to match your circuit s power requirements.
- Pitch & Size: Ensure compatibility with your PCB s edge thickness and connector pitch (e.g., 2.54mm, 3.96mm).
- Compliance Standards: Opt for UL, IEC, or MIL-SPEC certified contacts for high-reliability applications (e.g., aerospace, medical).
- Vendor Support: Choose suppliers offering customization (e.g., contact length, retention features) and bulk pricing for scalability.
Card Edge Connector Contacts are critical for seamless PCB integration selecting the right type ensures durability, signal clarity, and long-term system performance.
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