305-044-521-278

Edgeboard Connectors Overview

The EDAC Inc. part number 305-044-521-278 is a standard card edge connector from the 305 series, designed for dual-row female connections. It features 44 positions with a pitch of 3.96 mm (0.156 inches). The connector supports board thicknesses ranging from 1.37 mm to 1.78 mm and utilizes gold-plated copper alloy contacts. It is rated for 5 A current and operates within a temperature range of -40°C to +105°C. The housing is made of green thermoplastic polyester, and it employs solder pin termination for panel mount installation.

Edgeboard Connectors Feature Summary

• Dual-row configuration with 44 positions for high-density signal routing
• Gold-plated copper alloy contacts ensure reliable conductivity and corrosion resistance
• Thermoplastic polyester insulation provides stability across wide temperature ranges
• Panel mount design with solder pin termination for secure mechanical attachment

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized board thicknesses
• Test and measurement devices needing reliable dual-row connectivity
• Embedded computing modules with vertical mounting requirements

Edgeboard Connectors Procurement Notes

Verify that the specific order matches the 305-044-521-278 designation, as the 305 series includes various position counts and termination styles. Confirm compatibility with the target PCB thickness, which must fall between 1.37 mm and 1.78 mm. Ensure the application environment remains within the specified -40°C to +105°C operating range. Check for any regional distribution restrictions or lead time variations associated with EDAC components before finalizing procurement plans.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with 44 positions is required. The 3.96 mm pitch is suitable for applications not demanding finer spacing. Consider the 5 A current rating and gold plating for environments where durability and low contact resistance are critical. Verify that the panel mount style aligns with the system's mechanical constraints and that the green thermoplastic housing meets material specifications.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which offers various configurations for card edge applications. The series is characterized by its use of thermoplastic insulators and gold-plated contacts. Similar parts in the series include different position counts such as 305-040-520-268 and 305-054-556-278, allowing for scalability in design while maintaining consistent interface standards and mounting characteristics.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-040-520-268 and 305-054-556-278, though these differ in position count. Cross-series alternatives like the 315-030-521-278 exist but may feature different mounting hardware or flange options. Always verify dimensional drawings and electrical ratings before substituting to ensure mechanical fit and performance compliance.