305-070-556-278

Edgeboard Connectors Overview

The EDAC Inc. 305-070-556-278 is a standard card edge connector from the 305 series, designed for reliable signal transmission in electronic assemblies. It features a dual female configuration with 70 positions arranged across two rows. The connector utilizes a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm row spacing to accommodate standard PCB layouts. It accepts printed circuit boards with a nominal thickness of 1.57 mm. The contacts are constructed from copper alloy with gold plating to ensure low contact resistance and durability. Rated for 5 A current, it supports vertical panel mounting via solder pin termination.

Edgeboard Connectors Feature Summary

• Dual female contact configuration provides secure mating with double-sided card edge PCBs.
• Gold-plated copper alloy contacts ensure stable electrical performance and corrosion resistance.
• Vertical panel mount design facilitates direct integration into chassis or enclosure structures.
• Solder pin termination offers robust mechanical fixation and reliable electrical connection.

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Medical device internal module connections
• Test and measurement instrument interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact contact length, flange style, and insulation color. Ensure compatibility with the target PCB thickness tolerance of 1.57 mm nominal. Confirm that the required current rating of 5 A aligns with the application's thermal management capabilities. Check RoHS compliance status if restricted substances are mandated by the end product regulations.

Edgeboard Connectors Selection Notes

Select this component when a high-density 70-position interface is required with a 3.96 mm pitch. The 3.56 mm row spacing distinguishes it from wider-spaced alternatives. Consider the vertical panel mount orientation for space-constrained enclosures. Verify that the gold plating meets the environmental exposure requirements of the deployment site. Ensure the solder pin termination method matches the available 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 applications. The series offers various position counts and spacing options to support diverse board designs. The 305 series is characterized by its durable construction and consistent electrical performance. It serves as a critical interconnect solution for modular electronic systems requiring frequent maintenance or expansion.

Edgeboard Connectors FAQ

What is the nominal PCB thickness accepted by this connector?

The connector accepts a nominal printed circuit board thickness of 1.57 mm.

Does this connector support single-sided or double-sided cards?

It is a dual female connector designed for use with double-sided card edge PCBs.