305-078-521-201

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-201 is a standard card edge connector receptacle featuring 78 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing with a 3.56 mm row spacing. Designed for .062 inch nominal thickness printed circuit boards, the unit employs gold-plated copper alloy contacts and a green thermoplastic polyester insulator body. The component supports a current rating of 5 A per contact and operates within a temperature range of -40°C to +105°C. It offers an insulation resistance of 5 GOhms and features a low-profile design suitable for panel mounting applications.

Edgeboard Connectors Feature Summary

• Dual-row receptacle architecture accommodating 78 signal paths
• Gold-plated copper alloy contacts ensuring reliable conductivity
• Low-profile insulator body optimized for space-constrained panels
• Thermoplastic polyester housing providing thermal stability

Edgeboard Connectors Applications

• Panel-mounted electronic interconnect systems
• Industrial control board connections
• Telecommunications hardware interfaces
• Test and measurement equipment backplanes

Edgeboard Connectors Procurement Notes

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

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position connection is required on a single panel interface. The 3.96 mm pitch allows for robust trace routing while maintaining a compact footprint. Consider the vertical mounting style and solder lug termination type for secure PCB attachment. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by its versatility in handling various board thicknesses and its durable construction. The 305 series typically includes options for different pin counts and row configurations, catering to diverse connectivity needs in industrial and commercial electronics.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants such as 305-072-521-201 or 305-078-520-201 if pin count or termination style adjustments are necessary. Verify that any substitute maintains the same 3.96 mm pitch and dual-row layout to ensure mechanical fit.