305-054-520-278

Edgeboard Connectors Overview

The EDAC 305-054-520-278 is a standard card edge connector from the 305 series, designed for panel mount vertical installation. It features 54 positions arranged in two rows with a contact spacing of 3.96 mm (0.156 inches). The connector utilizes gold-plated copper alloy contacts and a thermoplastic insulator body. It supports a continuous current rating of 5 A and offers an insulation resistance of 5 GOhms. The operating temperature range spans from -40°C to +105°C, accommodating PCB thicknesses up to 1.57 mm.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Provides high dielectric strength with a 1800VACrms voltage rating
• Features a low-profile insulator body for compact panel integration

Edgeboard Connectors Applications

• Industrial control systems requiring polarized card edge connections
• Panel-mounted electronic modules needing robust signal integrity
• High-voltage interface applications within specified thermal limits

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against the manufacturer's official ordering guide to ensure correct pin count and termination style. Confirm that the target printed circuit board thickness aligns with the 1.57 mm nominal specification. Check for RoHS compliance status if environmental regulations apply to the assembly process. Ensure panel mounting hardware matches the flange specifications provided in the mechanical drawings.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with polarizing key capability is required. The 3.96 mm pitch suits applications where standard density is insufficient but high pin counts are necessary. Verify that the 5 A current rating meets the electrical load requirements of the design. Consider the vertical panel mount style for space-constrained enclosures requiring direct board insertion.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by its ability to accept polarizing keys and its robust construction for industrial environments. Similar parts in the series vary primarily by position count and specific termination details while maintaining consistent electrical and mechanical performance standards.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with matching 54-position configurations. Verify compatibility regarding polarizing key acceptance and panel mount dimensions before substitution.