305-042-521-558

Edgeboard Connectors Overview

The EDAC Inc. 305-042-521-558 is a dual-row female card edge connector designed for panel and through-hole mounting. It features 42 positions with a 0.156-inch (3.96mm) contact spacing and a 0.140-inch (3.56mm) row spacing. The connector utilizes gold-plated copper alloy contacts with a 10.0µin thickness, housed in a green polyester thermoplastic insulator. It accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57mm).

Edgeboard Connectors Feature Summary

• Dual-row configuration with half-bellows contact type for secure board engagement.
• Flush mount flange feature with top opening and no threading requirements.
• Gold-plated contacts ensure reliable conductivity and corrosion resistance.
• Thermoplastic polyester insulation provides stability across the operating temperature range.

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces.
• Telecommunications equipment utilizing standard PCB dimensions.
• Test and measurement instrumentation needing high-reliability connections.

Edgeboard Connectors Procurement Notes

Verify that the specific ordering suffix matches the required contact termination style and flange configuration. Confirm that the target printed circuit board thickness falls within the specified acceptance range to ensure proper mechanical retention and electrical contact. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-row interface with 0.156-inch pitch is required for non-specified card types. Ensure the design accommodates the flush mount flange geometry and allows for the necessary top opening clearance. Verify that the thermal environment remains within the -40°C to 105°C operational limits for the polyester material.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which offers various mounting options and row spacings for card edge applications. The series supports different pin counts and contact configurations to accommodate diverse PCB layouts. It is distinct from other EDAC series by its specific combination of pitch, row spacing, and low-profile body design.

Edgeboard Connectors Replacement Considerations

The 305-042-520-202 is a comparable variant within the same series, featuring identical positioning and pitch but potentially differing in flange or termination specifics. Cross-reference official datasheets to confirm mechanical compatibility before substitution.