306-028-400-158

Overview

The EDAC Inc. 306-028-400-158 is a dual edge card edge connector featuring 56 positions with female contacts. It utilizes a 0.156-inch (3.96mm) contact spacing and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57mm). The connector employs tin-plated copper alloy contacts housed in a green thermoplastic polyester insulator. Designed for through-hole termination, it operates within a temperature range of -40°C to +105°C and carries RoHS3 compliance.

Feature Summary

• Dual edge configuration with 56 female contact positions
• Accepts 0.062 inch nominal thickness PCBs
• Tin-plated copper alloy contacts for reliable conductivity
• Green thermoplastic polyester insulator body

Applications

• Industrial control systems requiring robust board-to-board connections
• Communication equipment utilizing standard card edge interfaces
• Consumer electronics assemblies needing durable signal pathways

Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to confirm contact plating, insulator color, and termination style match project requirements. Ensure the PCB thickness aligns with the 0.062-inch specification. Confirm RoHS3 compliance status if environmental regulations apply to the final assembly. Cross-reference the base part number 306-028 with the full suffix to avoid mismatches in pin count or housing dimensions.

Selection Notes

Select this component when a dual-sided card edge interface is required for 56 signals. The 0.156-inch spacing dictates the trace routing on the mating board. Consider the operating temperature range of -40°C to +105°C for environmental suitability. The through-hole termination method influences the PCB layout and manufacturing process compared to surface mount alternatives.

Part Context

This connector belongs to the EDAC 306 series, which offers various contact spacings and row configurations. The 306-028 variant specifically denotes a dual edge design with 28 contacts per side, totaling 56 positions. This series provides multiple mounting options and termination styles to accommodate diverse mechanical constraints in electronic assemblies.

Replacement Considerations

Direct substitutes include other EDAC 306 series connectors with matching 56-position dual edge specifications. Verify that alternative parts maintain the same 0.156-inch contact spacing and 0.062-inch board thickness acceptance. Check for identical termination types and current ratings to ensure functional equivalence without redesigning the host PCB.