306-026-421-104

Overview

The EDAC Inc. model 306-026-421-104 is a standard card edge connector receptacle designed for panel mount and through-hole installation. It features a dual female configuration with 52 positions arranged in two rows. The contact pitch measures 0.156 inches (3.96 mm), accommodating a board thickness of 1.57 mm. Contacts are constructed from copper alloy with tin plating to ensure reliable signal transmission. The insulator housing is made of green thermoplastic polyester, providing structural integrity and electrical insulation.

Feature Summary

• Dual-edge female contact configuration for secure card insertion
• Tin-plated copper alloy contacts for corrosion resistance
• Green thermoplastic polyester insulator housing
• Supports both panel mount and through-hole termination styles

Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules
• Computing hardware expansion slots

Procurement Notes

Verify the specific ordering suffix to confirm contact plating and housing color variants, as these attributes may differ across sub-models within the same series. Confirm that the selected variant matches the required dual-edge specification and terminal type. Ensure compatibility with the target PCB stack-up and mounting constraints before finalizing procurement orders.

Selection Notes

Select this component when a dual-row, 52-position interface is required with a 3.96 mm pitch. The tin-plated contacts offer a cost-effective solution for general-purpose applications where high conductivity is not the primary constraint. Verify that the panel mount or through-hole option aligns with the mechanical assembly requirements and available space constraints.

Part Context

This part belongs to the EDAC 306 Series, which specializes in standard density card edge connectors. The series provides versatile interconnection solutions for various electronic assemblies. The 306-026-421-104 specifically addresses the need for robust dual-edge connectivity with standardized spacing, fitting into broader system architectures requiring reliable modular connections.

Replacement Considerations

Direct substitutes include other EDAC 306 series parts with matching position counts and pitch, such as the 306-026-421-102 if single-row usage is acceptable. Cross-brand replacements require strict verification of pitch, board thickness tolerance, and contact geometry to ensure mechanical fit and electrical continuity without modification.