305-076-521-278

Edgeboard Connectors Overview

The EDAC Inc. model 305-076-521-278 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 76 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).

Edgeboard Connectors Feature Summary

• Dual-edge female connector design compatible with non-specified card types.
• Low-profile insulator body constructed from thermoplastic polyester.
• Solder pin termination type for secure board attachment.

Edgeboard Connectors Applications

• Industrial control systems requiring robust edge connections.
• Telecommunications equipment utilizing standard card edge interfaces.
• Automotive electronics modules needing high-density interconnects.

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the manufacturer's ordering guide to ensure correct flange and termination specifications. Confirm that the target PCB thickness aligns with the 1.57 mm nominal requirement for proper mechanical engagement. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure compatibility with existing panel mounting hardware before procurement.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count dual-edge interface is required within the 305 series family. The 3.96 mm pitch offers a balance between density and manufacturability compared to finer pitches. Consider the vertical panel mount style for space-constrained enclosures where front-access connection is necessary. Verify that the 5 A current rating meets the electrical load requirements of the application.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in modular electronic systems. The series provides various position counts and termination options to suit different board densities. The 305-076 variant specifically addresses applications requiring a higher number of signal or power lines within a single dual-row connector footprint.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include models with identical pitch and row count but different position numbers, such as 305-070-521-278 or 305-080-521-278, provided the physical envelope fits the design. Cross-series replacements like the 315 series may offer similar electrical characteristics but differ in flange threading and mounting details, requiring mechanical verification.