305-074-556-503

Edgeboard Connectors Overview

The EDAC Inc. part number 305-074-556-503 is a dual-edge female card edge connector from the 305 series. It features 74 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). Contacts are gold-plated copper alloy, and the insulator body is green thermoplastic polyester. It supports solder termination and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for non-specified board types
• Gold-plated contacts on copper alloy substrate
• Low-profile insulator body construction
• Solder pin termination style

Edgeboard Connectors Applications

• Industrial control systems
• Telecommunications equipment
• Automotive electronics
• Medical devices

Edgeboard Connectors Procurement Notes

Verify the exact position count against project requirements, as distributor listings may contain conflicting data regarding 30 versus 74 positions. Confirm the specific suffix codes match the required flange and mounting characteristics. Ensure the ordering guide aligns with the intended PCB thickness tolerance. Cross-reference the manufacturer's official documentation to resolve any discrepancies found in third-party catalogs before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge interface with 0.156-inch spacing is required for standard thickness boards. The gold plating ensures reliable signal transmission in industrial environments. Verify that the low-profile design fits within the available mechanical envelope. Consider the operating temperature range and insulation material properties for thermal stability during selection.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which includes various configurations for card edge applications. The series offers options for different position counts and mounting styles. The 305 series is designed for robust performance in demanding electronic assemblies, providing secure connections for double-sided PCBs.

Edgeboard Connectors Replacement Considerations

Check the 305-074-556-502 variant for potential compatibility if the flange specifications differ. Review the 305-074-520-204 model for alternative termination or housing color options. Always validate mechanical dimensions and electrical ratings against the original design specifications before substituting.