305-016-556-503

Edgeboard Connectors Overview

The EDAC Inc. 305-016-556-503 is a standard card edge connector receptacle from the 305 series. It features 16 positions with a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm row spacing. Designed for dual-row configuration, it accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The contacts are gold-plated copper alloy, supporting a continuous current rating of 5 A and 1800 VACrms insulation voltage. The unit utilizes a low-profile thermoplastic insulator body and employs solder pin termination for PCB mounting.

Edgeboard Connectors Feature Summary

• Dual-row female configuration designed for standard card edge applications
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Low-profile insulator body accommodates space-constrained designs
• Accepts between-contact and in-contact polarizing keys for secure alignment

Edgeboard Connectors Applications

• Industrial control system interconnects
• Telecommunications equipment backplanes
• Computer peripheral module connections
• Test and measurement instrument interfaces

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 16-position count and 3.96 mm pitch before ordering. Confirm that the receiving board thickness aligns with the 1.57 mm specification to ensure proper mechanical engagement. Check for RoHS compliance requirements if operating in regulated environments. Ensure that the soldering process parameters are compatible with the gold-plated contact finish to maintain long-term reliability.

Edgeboard Connectors Selection Notes

Select this component when a dual-row connection with 3.96 mm spacing is required for 1.57 mm thick boards. The 5 A current rating suits moderate power distribution needs. Consider the vertical panel or PCB mount style based on the enclosure design. Verify that the low-profile height fits within the available chassis clearance constraints.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which provides standardized card edge solutions. The series offers various position counts and mounting styles while maintaining consistent 3.96 mm pitch dimensions. The 305-016-556-503 specifically addresses applications requiring a compact 16-position interface with robust electrical characteristics.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 16-position count, 3.96 mm pitch, and dual-row female configuration. Verify that any alternative component supports the same 1.57 mm board thickness and solder pin termination method. Cross-reference the current rating and insulation voltage to ensure equivalent performance.