306-021-421-103

Overview

The EDAC Inc. 306-021-421-103 is a dual-edge female card edge connector designed for panel and through-hole mounting. It features 42 positions with a 0.156-inch (3.96mm) spacing across two rows. The connector utilizes tin-plated copper alloy contacts and a green thermoplastic polyester insulator. It accepts printed circuit boards with thicknesses ranging from 0.054 to 0.070 inches (1.37mm to 1.78mm). Operating temperatures range from -40°C to 105°C, and it complies with RoHS3 standards.

Feature Summary

• Dual-edge female configuration with cantilever contacts for secure board retention
• Low-profile insulator body constructed from thermoplastic polyester
• Panel mount design with flush flange and top opening
• Tin-plated copper alloy contacts ensuring reliable conductivity

Applications

• Industrial control system interconnections
• Telecommunications equipment backplanes
• Consumer electronics module interfaces
• Automotive electronic sub-systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current 306 Series Ordering Guide to ensure compatibility with required contact finishes and insulation colors. Confirm that the target PCB thickness falls within the specified 0.054 to 0.070 inch range before finalizing procurement orders to prevent mechanical fit issues.

Selection Notes

Select this component when a dual-edge connection is required for non-specified cards with a 3.96mm pitch. Ensure the application environment remains within the -40°C to 105°C operating temperature range. Verify that the panel mounting style aligns with the enclosure design constraints and that the low-profile height meets spatial requirements.

Part Context

This part belongs to the EDAC 306 series of standard card edge connectors. The series offers various position counts and configurations for vertical or right-angle mounting. The 306-021-421-103 specifically addresses applications requiring 42-position dual-edge connectivity with through-hole termination methods.

Replacement Considerations

Cross-reference with other EDAC 306 series variants such as 306-043-421-104 for higher position counts. Verify mechanical dimensions and electrical ratings against alternative manufacturers' offerings if supply chain diversification is necessary.