305-056-555-278

Edgeboard Connectors Overview

The EDAC Inc. 305-056-555-278 is a standard card edge connector designed for dual-edge board applications. It features 56 positions with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). It utilizes gold-plated copper alloy contacts and a green thermoplastic insulator body. The unit supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector configuration with integrated card guide functionality
• Gold-plated copper alloy contacts ensuring reliable signal transmission
• Low-profile insulator body constructed from thermoplastic material
• Straddle mount installation style for secure panel attachment

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications equipment utilizing dual-edge card architectures
• Test and measurement instrumentation interfaces
• Computer peripheral expansion modules

Edgeboard Connectors Procurement Notes

Verify the specific contact tail bend configuration, as the part number indicates a bent tail variant. Confirm that the target PCB thickness aligns with the 0.062-inch nominal specification to ensure proper mechanical engagement. Check RoHS compliance status against current regulatory requirements before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge connection with 56 positions is required. Ensure the design accommodates the 3.96 mm pitch and straddle mounting constraints. Compare against similar series parts if different tail lengths or contact counts are needed. Verify thermal ratings match the operational environment limits.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, which specializes in standard card edge connectors. The series offers various position counts and mounting options tailored for industrial and commercial electronics. The 305-056-555-278 specifically addresses high-density interconnect needs with its dual-edge design and durable construction materials.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants such as 305-050-556-201 for position differences. Verify mechanical dimensions and electrical ratings against alternative suppliers' offerings to ensure compatibility with existing PCB layouts and assembly processes.