305-078-521-203

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-203 is a standard card edge connector from the 305 series, designed for panel mounting with vertical orientation. It features 78 positions arranged in a dual female configuration with a 0.156-inch (3.96 mm) contact spacing. The connector utilizes gold-plated copper alloy contacts and solder pin termination. It accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm).

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment.
• Features a low-profile insulator body constructed from thermoplastic polyester.
• Provides a continuous current rating of 5A and withstands 1800VACrms dielectric voltage.

Edgeboard Connectors Applications

• High-density electronic interconnect systems requiring polarized board insertion.
• Industrial control panels utilizing vertical card edge mounting configurations.
• Equipment requiring robust thermal performance within specified operating ranges.

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required contact plating and insulation color specifications. Confirm compatibility with polarizing key requirements if mechanical retention is necessary. Ensure the target PCB thickness aligns with the connector's nominal acceptance range to guarantee proper contact engagement.

Edgeboard Connectors Selection Notes

Select this component when a dual-row female connector with 78 positions is required. Verify that the 0.156-inch pitch suits the board layout constraints. Consider the 5A current rating and high dielectric strength for electrical safety margins. Ensure the panel mount style fits the enclosure design requirements.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and row configurations. These connectors are characterized by their durable construction and reliable performance in demanding environments. The 305 series supports both single and dual row arrangements for diverse application needs.

Edgeboard Connectors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the 78-position count, 3.96mm pitch, and dual female configuration. Verify mechanical dimensions and electrical ratings before substituting with alternative manufacturers' components.