305-078-500-503

Edgeboard Connectors Overview

The EDAC Inc. 305-078-500-503 is a standard card edge connector featuring 78 positions arranged in two rows with a 3.96 mm (0.156 inch) pitch. It utilizes gold-plated copper alloy contacts and a green thermoplastic polyester insulator. Designed for panel mounting, it accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The component supports a current rating of 5 A and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row configuration providing 78 contact positions for high-density interconnect applications
• Gold-plated copper alloy contacts ensure reliable signal transmission and corrosion resistance
• Panel mount design with vertical orientation facilitates secure mechanical integration

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interfaces
• Telecommunications equipment utilizing standard card edge form factors
• Test and measurement instruments needing reliable board-to-panel connections

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact contact plating thickness, insulator material grade, and mounting hardware specifications. Ensure compatibility with the target PCB thickness of 1.57 mm and verify that the panel cutout dimensions align with the connector's physical envelope before procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with a 3.96 mm pitch is required for panel mounting applications. It is suitable for designs needing 78 positions with a 5 A current rating. Consider the operating temperature range and insulation resistance requirements to ensure compliance with the specific environmental conditions of the target electronic assembly.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which comprises standard card edge connectors designed for various industrial and commercial applications. The series offers multiple position counts and mounting styles, providing flexibility for different board density and mechanical integration needs while maintaining consistent electrical performance characteristics across the product line.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants such as 305-040-500-502 or 305-048-556-508 if fewer positions are sufficient. Verify that any substitute maintains the same 3.96 mm pitch, dual-row configuration, and panel mounting style to ensure mechanical and electrical compatibility.