305-076-521-203

Edgeboard Connectors Overview

The EDAC Inc. 305-076-521-203 is a standard card edge connector from the 305 series, designed for panel mounting applications. It features 76 positions with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). It utilizes gold-plated copper alloy contacts to ensure reliable signal transmission and supports a continuous current rating of 5 A. The housing is constructed from green thermoplastic polyester, providing durability and insulation.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body for compact installation requirements
• Utilizes gold-plated contacts on a copper alloy substrate for conductivity

Edgeboard Connectors Applications

• Panel-mounted electronic assemblies requiring robust card edge interfaces
• Industrial control systems utilizing polarized PCB connections
• High-density interconnect solutions within restricted vertical spaces

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required polarizing key configuration and termination style. Confirm compatibility with the target PCB thickness of 0.062 inches to ensure proper mechanical retention. Check regional availability as distribution status may vary by location. Ensure the application environment remains within the specified operating temperature range for optimal performance.

Edgeboard Connectors Selection Notes

Select this component when a 76-position dual-row interface is required for panel-mounting scenarios. The 0.156-inch pitch accommodates standard board layouts while the 5A rating suits moderate power applications. Consider the low-profile design if vertical clearance is limited. Verify that the polarizing key options align with the system's mechanical locking needs.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles, all sharing common electrical characteristics such as the 5A current rating and gold-plated contact construction. The 305 series is widely used in industrial and commercial electronics for reliable board-to-panel connections.

Edgeboard Connectors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.