305-080-556-278

Edgeboard Connectors Overview

The EDAC Inc. 305-080-556-278 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features an 80-position dual female configuration with a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm row spacing. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Constructed with copper alloy contacts featuring gold plating, it provides a continuous current rating of 5 A and withstands 1800 VACrms. The insulator body is made of green thermoplastic polyester, supporting operation within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features low profile insulator body with flange characteristics including flush mount and top opening
• Utilizes half-beam contact type for reliable connection to dual-edge cards

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Test and measurement instruments needing high-density vertical connections

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required contact finish and insulation color specifications. Confirm compatibility with polarizing key requirements if mechanical locking is necessary for the application. Ensure the PCB thickness falls within the specified tolerance range for proper insertion force and electrical continuity. Check regional availability as distribution status may vary by location.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface with 80 positions is required for panel mounting. The 3.96 mm pitch suits applications needing wider spacing compared to fine-pitch alternatives. Consider the 5 A current rating and 1800 VACrms dielectric strength for power and signal integrity needs. Verify that the vertical installation style aligns with the chassis design constraints.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are characterized by their versatility in accepting various polarizing keys. The series offers multiple position counts and termination types, catering to diverse electronic assembly requirements. The 305-080 variant specifically addresses high-density connection needs while maintaining a robust mechanical structure suitable for industrial environments.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pin counts and spacing but different termination or flange options, such as 305-080-555-568. Cross-series replacements require careful evaluation of pitch, row spacing, and board thickness compatibility to ensure mechanical fit and electrical performance equivalence.