305-042-521-203

Edgeboard Connectors Overview

The EDAC Inc. 305-042-521-203 is a standard card edge connector designed for dual-edge board applications. It features 42 positions with a 3.96 mm (0.156 inch) pitch and supports PCB thicknesses ranging from 1.37 mm to 1.78 mm. The connector utilizes female half-beam contacts made of copper alloy with gold plating, rated for 5 A current. It employs a solder termination type and is constructed with a green thermoplastic polyester insulator. Designed for panel mounting in a vertical orientation, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure board insertion
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Thermoplastic polyester housing provides thermal stability up to 105°C

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against official EDAC documentation to confirm exact flange dimensions and terminal style. Ensure compatibility with target PCB thickness specifications before procurement. Confirm RoHS compliance status through the manufacturer's latest environmental declarations. Cross-reference the part number with authorized distributor catalogs to validate current availability and lead times.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface with a 3.96 mm pitch is required. The 42-position count suits moderate-density applications. Verify that the vertical panel mount style aligns with the mechanical enclosure design. Ensure the 5 A current rating meets the electrical load requirements of the application circuit.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles. The 305-042 variant specifically addresses dual-edge connectivity needs. It shares common material properties with other parts in the family while differing in contact count and physical dimensions.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series Ordering Guide for direct substitutes. Verify identical pitch and position counts for cross-referencing. Check mechanical fitment and electrical ratings before substitution.