305-054-500-278

Edgeboard Connectors Overview

The EDAC 305-054-500-278 is a standard card edge connector from the 305 series, designed for dual-row board-to-board or backplane applications. It features 54 positions with a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Constructed with copper alloy contacts plated in gold, it supports a continuous current rating of 5 A and withstands 1800 VACrms dielectric voltage. The insulator body is green thermoplastic, providing an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-row configuration with gold-plated copper alloy contacts for reliable signal transmission
• Accepts polarizing keys between-contact and in-contact for secure board alignment
• Low-profile insulator body designed for space-constrained panel mount installations

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment backplanes
• Test and measurement instrumentation modules
• Computer peripheral interface cards

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm contact termination type and mounting style, as variations exist within the 305 series. Ensure the target PCB thickness matches the 1.57 mm specification to guarantee proper mechanical engagement. Confirm that the required current and voltage ratings align with the system's electrical design parameters before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-row connection with 3.96 mm pitch is required for 1.57 mm thick boards. Consider the 5 A current rating and 1800 VACrms isolation for high-power or high-voltage environments. Evaluate the vertical panel mount style against available chassis space. Compare alternative part numbers in the 305 series if different position counts or termination methods are needed.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which offers various configurations including single and dual rows with different position counts. The series is characterized by its standardized 3.96 mm pitch and compatibility with standard card edge profiles. It serves as a modular interconnect solution within EDAC's broader portfolio of headers and receptacles for industrial electronics.

Edgeboard Connectors Replacement Considerations

Direct substitutes may include other EDAC 305 series parts with identical pitch and row count but different termination styles, such as solder pin variants. Cross-brand replacements require matching the 3.96 mm pitch, 54-position count, and 1.57 mm board thickness constraints precisely.