305-078-555-508

Edgeboard Connectors Overview

The EDAC Inc. 305-078-555-508 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 spacing of 3.56 mm (0.140 inch). Designed for vertical panel mounting, the unit accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The contacts are constructed from copper alloy and feature gold plating to ensure reliable signal transmission. Rated for a continuous current of 5 A and offering an insulation resistance of 5 GOhms, this component operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design accommodates non-specified card types
• Gold-plated copper alloy contacts provide corrosion resistance and conductivity
• Low-profile insulator body facilitates compact system integration
• Panel mount installation style ensures secure mechanical positioning

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications equipment utilizing standard card edge interfaces
• Test and measurement instrumentation panels
• Automotive electronics modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact physical dimensions and termination specifications. Ensure compatibility with the target PCB thickness of 1.57 mm. Confirm that the required current rating of 5 A aligns with the application's electrical load requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Edgeboard Connectors Selection Notes

Select this connector when a high-density interface with 78 positions is required for vertical panel mounting applications. The 3.96 mm pitch allows for substantial trace spacing compared to finer pitches. Consider the thermoplastic polyester insulator material for general-purpose durability. Verify that the mating card edge thickness falls within the acceptable tolerance range for proper contact engagement.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and row configurations to suit different density requirements. The 305 series is characterized by its use of thermoplastic materials and gold-plated contacts, providing a balance of performance and cost-effectiveness for industrial interconnect solutions.

Edgeboard Connectors Replacement Considerations

Direct substitutes include other EDAC 305 series variants with matching pin counts and pitch, such as the 305-080-555-568, provided the physical footprint and mounting hole patterns are compatible. Cross-manufacturer replacements require strict verification of dimensional drawings and electrical ratings to ensure functional equivalence.