305-056-521-258

Edgeboard Connectors Overview

The EDAC Inc. 305-056-521-258 is a standard card edge connector from the 305 Series, designed for dual-row applications with 56 positions. It features a contact spacing of 3.96 mm (0.156 inches) and accommodates printed circuit boards with thicknesses ranging from 1.37 mm to 1.78 mm. The connector utilizes gold-plated copper alloy contacts and employs a solder pin termination method for secure board attachment. Rated for 5 A continuous current, it operates within a temperature range of -40°C to +105°C and provides an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-row configuration supporting high-density interconnects
• Gold-plated contacts ensure reliable signal transmission
• Compatible with polarizing keys for precise alignment
• Panel mount installation style for structural stability

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel connections
• Telecommunications equipment backplanes
• Test and measurement instrumentation interfaces
• Computer peripheral expansion modules

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required mounting style and contact plating thickness. Confirm compatibility with the target PCB thickness range of 1.37 mm to 1.78 mm to ensure proper mechanical retention. Check RoHS compliance status if environmental regulations apply to the end product. Ensure the selected variant supports the necessary current rating for the intended application load.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge interface with 56 positions is required. The 3.96 mm pitch suits applications needing wider spacing between signals. Consider the vertical panel mount orientation for chassis integration. Verify that the 5 A current rating meets the power distribution requirements of the connected circuitry before finalizing the design.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which offers various configurations for card edge applications. The series includes options for different row counts and mounting styles. The 305-056-521-258 specifically addresses needs for medium-to-high density connections in industrial environments. It complements other parts in the lineup by providing standardized dimensions and reliable performance characteristics.

Edgeboard Connectors Replacement Considerations

Direct substitutes may include other EDAC 305 Series connectors with matching position counts and pitch. Verify mechanical fit and electrical ratings before swapping. Cross-reference with similar series like 315 or 355 only if dimensional differences are acceptable.