305-040-521-258

Edgeboard Connectors Overview

The EDAC Inc. 305-040-521-258 is a standard card edge connector designed for panel mount applications with a vertical orientation. It features 40 positions arranged in a dual-edge female configuration, utilizing a 3.96 mm (0.156 inch) contact spacing. The connector accepts printed circuit boards with a thickness range of 1.37 mm to 1.78 mm. Contacts are constructed from copper alloy and finished with gold plating to ensure reliable signal transmission. The unit supports a continuous current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body constructed from thermoplastic polyester
• Provides high dielectric strength with an 1800 VACrms rating

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standard double-sided card edges
• Test and measurement instrumentation needing reliable vertical mounting solutions

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official 305 Series Ordering Guide to confirm mechanical variations such as flange type or termination style. Ensure that the target PCB thickness falls within the specified 1.37 mm to 1.78 mm range to guarantee proper contact engagement. Confirm RoHS compliance requirements if operating in regulated environments, as this component adheres to RoHS3 standards.

Edgeboard Connectors Selection Notes

Select this model when a vertical, panel-mount interface is required for double-sided cards. The 3.96 mm pitch accommodates larger trace widths compared to finer pitches. Verify that the application environment stays within the -40°C to +105°C operational limits. Consider the 5 A current rating for power distribution needs alongside signal integrity requirements.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, a line of standard card edge connectors known for their durability and versatility. The series offers various position counts and mounting styles, allowing engineers to scale designs while maintaining consistent mechanical and electrical characteristics across different product lines.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with matching 40-position dual-edge configurations. Cross-referencing the specific flange characteristics and termination method is essential before replacing the component to ensure mechanical compatibility.