305-078-500-507

Edgeboard Connectors Overview

The EDAC 305-078-500-507 is a standard card edge connector featuring 78 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing with a row pitch of 3.56 mm. Designed for panel mounting, this vertical connector accepts printed circuit boards with a nominal thickness of 1.57 mm, specifically within the range of 1.37 mm to 1.78 mm. The contacts are constructed from copper alloy and feature gold plating to ensure reliable signal transmission. Rated for 5 A continuous current and 1800 VACrms insulation voltage, it operates between -40°C and +105°C. The insulator body is made of green thermoplastic polyester.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features semi-bellows contact type for enhanced retention on dual-edge cards
• Includes flush mount flange with top opening and M3 threaded inserts

Edgeboard Connectors Applications

• High-speed data handling systems requiring FPGA integration
• Industrial control modules needing robust panel-mounted interconnects
• Aerospace and medical equipment utilizing standardized card edge architectures

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the official EDAC datasheet to confirm contact plating thickness and insulator color variants. Ensure the host PCB design accommodates the specified 1.57 mm nominal thickness range. Confirm that the M3 threaded insert requirements align with the assembly panel specifications before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position interface is required for dual-edge card applications. The 3.96 mm pitch offers a balance between signal density and mechanical stability. Consider the gold-plated semi-bellows contacts for environments demanding high cycle life and low contact resistance. Verify thermal compatibility with the -40°C to +105°C operating range for the intended application environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series, a line of standard card edge connectors established by EDAC Inc., a leader in interconnect solutions since 1966. The series is designed for computing, storage, and industrial sectors, providing reliable rack and panel connections. The 305 series emphasizes quality assurance through rigorous inspection processes at global logistic centers.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the same family include 305-050-520-507 and 305-040-520-507, which share identical mechanical dimensions and electrical characteristics but differ in position count. Ensure the replacement matches the 78-position requirement if pin count is critical.