305-018-556-258

Edgeboard Connectors Overview

The EDAC Inc. 305-018-556-258 is a standard card edge connector from the 305 series, designed for vertical panel mounting. It features an 18-position dual-row configuration with a 3.96 mm (0.156 inch) contact pitch and a 3.56 mm row spacing. The unit accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Electrical specifications include a current rating of 5 A and an insulation resistance of 5 GOhms. The contacts are constructed from copper alloy with gold plating, housed in green thermoplastic. The operating temperature range spans from -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female connector design for non-specified dual-edge cards
• Vertical panel mount orientation with solder lug termination
• Gold-plated copper alloy contacts for reliable signal transmission
• Thermoplastic insulator body rated for high-temperature environments

Edgeboard Connectors Applications

• Industrial control system interconnections
• Telecommunications equipment backplanes
• Test and measurement instrument modules
• Military and aerospace electronic assemblies

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against the manufacturer's official ordering guide to confirm exact termination style and plating thickness. Confirm that the required PCB thickness aligns with the 1.57 mm specification. Ensure compatibility with existing panel cutouts and mating card dimensions before procurement. Cross-reference the RoHS status with current regulatory requirements for the target market.

Edgeboard Connectors Selection Notes

Select this component when a dual-row connection with a 3.96 mm pitch is required for vertical panel integration. The 18-position count suits moderate-density applications. Consider the 5 A current rating and 105°C thermal limit for environmental suitability. Verify that the solder lug termination method matches the assembly process capabilities and board layout constraints.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides various card edge connector options with consistent 3.96 mm spacing. The series offers multiple position counts and mounting styles to accommodate diverse board interface needs. The 305-018-556-258 specifically addresses the need for a robust, vertically mounted dual-row interface in compact enclosures.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and position counts but different suffixes for varied termination or housing colors. Verify mechanical fit and electrical ratings before swapping. No alternative manufacturers offer direct pin-to-pin replacements with identical form factors.