305-078-520-578

Edgeboard Connectors Overview

The EDAC Inc. 305-078-520-578 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 78 positions arranged in a dual row configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). Rated for 5 A continuous current, it operates 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 a low-profile insulator body constructed from thermoplastic material
• Provides high dielectric strength with an 1800 VACrms rating

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Test and measurement instrumentation needing reliable signal transmission

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required pin count and row configuration before integration. Confirm that the mating PCB thickness aligns with the specified 1.57 mm nominal tolerance to ensure proper contact engagement. Check regional availability as distribution status may vary by location. Ensure compliance with RoHS directives if applicable to the assembly environment.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 78-position interface is required for vertical panel mounting. The 3.96 mm pitch suits applications where higher density is needed without excessive board width. Consider the 5 A current rating for power distribution needs. Verify compatibility with existing polarizing key requirements to maintain mechanical stability during operation.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which offers various position counts and configurations for card edge applications. The series is characterized by its durable construction and consistent electrical performance across different models. It serves as a reliable solution for connecting edge-board modules to main system backplanes or chassis panels.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include the 305-050-520-578 and 305-054-556-278, though these differ in position count. Ensure any replacement maintains the 3.96 mm pitch and dual-row format to fit existing mechanical constraints.