305-026-556-258

Edgeboard Connectors Overview

The EDAC Inc. model 305-026-556-258 is a standard card edge connector from the 305 series, designed for dual-edge mating with printed circuit boards. It features 26 positions arranged in two rows with a contact pitch of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The connector utilizes gold-plated copper alloy contacts and a green thermoplastic insulator body. It supports a nominal board thickness of 0.062 inches (1.57 mm) and operates within a temperature range of -40°C to +105°C. Rated for 5 A current, it offers an insulation resistance of 5 GOhms and complies with RoHS3 standards.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure board insertion
• Gold-plated contacts ensure reliable signal transmission
• Low-profile insulator body design
• Integrated card guide features for alignment

Edgeboard Connectors Applications

• Straddle mount PCB interconnections
• Board edge signal routing
• Card extender applications
• Industrial control panel interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix matches the required contact plating and housing color specifications. Confirm that the nominal printed circuit board thickness aligns with the 0.062-inch design requirement to ensure proper mechanical fit. Check regional distribution availability as supply may be restricted in certain areas. Ensure compliance with relevant environmental regulations such as RoHS3 before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card edge connector with a 3.96 mm pitch is required for straddle mounting applications. Consider the 5 A current rating and 5 GOhms insulation resistance for electrical requirements. Verify compatibility with the target board thickness of 1.57 mm. Evaluate the need for integrated card guides to assist in precise board insertion during assembly processes.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in industrial and commercial electronics for reliable board-to-board or backplane connections. The series offers various position counts and mounting styles, providing flexibility for different enclosure and panel integration needs while maintaining consistent electrical performance characteristics across the product line.

Edgeboard Connectors Replacement Considerations

Compatible substitutes include other EDAC 305 series connectors with matching 26-position dual-edge configurations and identical 3.96 mm pitch dimensions. Ensure any replacement maintains the same 0.140-inch row spacing and supports the 0.062-inch board thickness specification. Verify that alternative parts offer equivalent gold plating and thermoplastic housing materials for consistent performance.

Edgeboard Connectors FAQ

What is the maximum operating temperature for this connector?

The maximum operating temperature is +105°C.

Does this connector support straddle mounting?

Yes, the 305-026-556-258 is designed for straddle mount installation on the board edge.

What is the specified nominal PCB thickness?

The connector accepts a nominal printed circuit board thickness of 0.062 inches (1.57 mm).