305-028-520-207

Edgeboard Connectors Overview

The EDAC Inc. 305-028-520-207 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 28 positions arranged in a dual-row configuration 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). Contacts are made of copper alloy with gold plating, providing a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The housing is constructed from green thermoplastic material.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Low profile insulator body design suitable for space-constrained panel installations
• Gold-plated copper alloy contacts ensure reliable electrical performance

Edgeboard Connectors Applications

• Panel-mounted electronic assemblies requiring vertical card edge interfaces
• Industrial control systems utilizing standardized PCB modules
• Test and measurement equipment with modular card architectures

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix to confirm contact termination type and plating specifications, as variations exist within the 305 series. Confirm that the target application supports the required 1.57 mm board thickness and 3.96 mm pitch. Ensure compatibility with polarizing key requirements if mechanical locking is necessary for the assembly. Cross-reference the datasheet for environmental ratings against operational conditions.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 28-position card edge connector is required for panel mounting. The 3.96 mm pitch accommodates standard board layouts, while the 5 A current rating suits moderate power applications. Consider the vertical orientation and low-profile body for integration into chassis designs where height restrictions apply. Verify that the thermoplastic housing meets thermal and chemical resistance needs for the environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which offers various position counts and termination options. The series is characterized by its robust construction and compatibility with polarizing keys. Similar parts in the series include configurations with different pin counts, such as 18 or 40 positions, sharing identical pitch and mounting characteristics.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the EDAC 305 series may vary by position count but share the same 3.96 mm pitch and panel mount style. Verify mechanical dimensions and electrical ratings before replacing with other manufacturers' components to ensure board compatibility.