306-027-520-178

Overview

The EDAC Inc. part number 306-027-520-178 is a standard card edge connector receptacle from the 306 series. It features 54 positions arranged in a dual female configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and terminates via solder through-hole mounting. Designed for a nominal printed circuit board thickness of 0.062 inches (1.57 mm), it operates within a temperature range of -40°C to 105°C. The insulating body is constructed from green thermoplastic polyester, ensuring reliable electrical performance in industrial applications.

Feature Summary

• Dual-edge female contact configuration for secure card insertion
• Gold-plated copper alloy contacts for corrosion resistance
• Through-hole solder termination for robust PCB attachment
• Flush mount flange with top opening and threaded inserts

Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Medical device internal module connections
• Energy sector instrumentation boards

Procurement Notes

Verify the specific ordering suffix against the official EDAC datasheet to confirm mechanical variations such as flange type or plating thickness. Ensure compatibility with the target PCB stack-up and hole dimensions. Cross-reference the RoHS compliance status with current manufacturer declarations. Confirm availability through authorized distributors, as supply chain fluctuations may affect lead times. Validate that the selected variant matches the required operating temperature range for the intended environment.

Selection Notes

Select this component when a high-density 54-position interface is required for double-sided card edge applications. The 3.96 mm pitch accommodates standard board thicknesses while maintaining signal integrity. Consider the flush mount design if panel space is limited. The gold plating offers durability for repeated insertions. Evaluate the through-hole termination method against surface-mount alternatives based on mechanical stress requirements and manufacturing capabilities.

Part Context

This connector belongs to the EDAC 306 series, which provides standard card edge solutions for various industries. The series is known for its reliability in harsh environments. EDAC, now part of Northern Technologies, has a long history of producing high-quality interconnects since 1966. The 306 series specifically targets applications requiring robust mechanical retention and consistent electrical performance across a wide temperature spectrum.

Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Verify pin-to-pin compatibility with existing designs. Check if alternative EDAC models like 306-015-520-178 offer similar specifications with different position counts. Ensure any replacement maintains the same 0.156 inch pitch and dual-edge female configuration.