305-074-556-202

Edgeboard Connectors Overview

The EDAC Inc. 305-074-556-202 is a dual-edge female card edge connector designed for panel mount applications. 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). Constructed with copper alloy contacts featuring gold plating, the unit utilizes a green thermoplastic polyester insulator body. It supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female configuration for non-specified dual-edge cards
• Panel mount installation style with low-profile insulator body
• Gold-plated copper alloy contacts ensuring reliable signal transmission
• Thermoplastic polyester insulation providing stable electrical performance

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications infrastructure equipment
• Automotive electronic modules
• Medical device internal interconnections

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the manufacturer's official ordering guide to ensure correct pin count, contact finish, and mounting style. Confirm that the target PCB thickness aligns with the 0.062-inch specification. Check RoHS compliance status if environmental regulations apply to the end product. Ensure the panel cutout dimensions match the connector's flange requirements for proper fit.

Edgeboard Connectors Selection Notes

Select this component when a high-density connection is required for dual-edge cards in panel-mounted assemblies. The 0.156-inch pitch offers a balance between density and mechanical stability. Consider the 5 A current rating for power distribution needs. Verify compatibility with existing tooling for panel mounting. Evaluate thermal requirements against the -40°C to +105°C operating range.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors known for durability and versatility. The series includes various position counts and mounting styles to accommodate diverse design constraints. The 305-074 variant specifically addresses applications needing a higher pin count while maintaining the standard 0.156-inch spacing characteristic of the family.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series parts sharing identical pitch and row spacing. Verify that substitute models match the 74-position count and dual-edge female configuration. Ensure any alternative maintains the same panel mount style and gold contact finish for equivalent performance.