305-042-521-202

Edgeboard Connectors Overview

The EDAC Inc. 305-042-521-202 is a standard card edge connector from the 305 series, designed for reliable signal transmission in electronic assemblies. It features a dual-edge configuration with 42 positions and a pitch of 3.96 mm (0.156 inches). The connector supports PCBs with a thickness of 1.57 mm and utilizes gold-plated copper alloy contacts to ensure low contact resistance and durability. Rated for 5 A continuous current, it employs a solder lug termination type for secure board attachment. The housing is constructed from green thermoplastic polyester, providing robust insulation and mechanical stability.

Edgeboard Connectors Feature Summary

• Dual-edge receptacle design accommodates double-sided card edge boards for increased I/O density.
• Gold-plated contacts on copper alloy substrates provide corrosion resistance and stable electrical performance.
• Thermoplastic polyester housing offers high thermal stability and consistent dielectric properties.
• Solder lug termination ensures secure mechanical fixation and reliable electrical connection to the PCB.

Edgeboard Connectors Applications

• Industrial control systems requiring durable interconnects
• Telecommunications equipment with high-density signal routing
• Automotive electronics modules needing reliable board-to-board connections

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required dual-edge configuration and 42-position count. Confirm that the 3.96 mm pitch aligns with the target card edge board dimensions. Ensure the gold plating specification meets the environmental requirements for the intended application. Check compatibility with the specified 1.57 mm PCB thickness to guarantee proper seating. Validate that the solder lug termination method is supported by the manufacturing process.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge connector with a 3.96 mm pitch is required for high-current applications up to 5 A. The gold-plated contacts are suitable for environments where corrosion resistance is critical. The vertical panel mount style allows for direct integration into chassis structures. Consider the thermoplastic polyester housing material for its thermal resilience compared to other polymers.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which specializes in standard card edge solutions. The series offers various position counts and termination options to suit different board densities. The 305-042 variant specifically addresses mid-range I/O requirements with a balance of size and capacity. It is engineered for industrial-grade reliability and long-term cycle life.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-042-520-504 and 305-042-500-504, though these may differ in termination style or housing color. Verify that any replacement maintains the 3.96 mm pitch and 42-position count to ensure mechanical fit. Cross-reference the current rating and contact plating to confirm equivalent electrical performance.