306-025-521-178

Overview

The EDAC Inc. 306-025-521-178 is a standard card edge connector receptacle from the 306 series, designed for through-hole mounting with a straight orientation. It features 50 positions arranged in a dual-edge configuration with a contact spacing of 0.156 inches (3.96 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm) and utilizes gold-plated copper alloy contacts. Rated for 5 A current, it employs a thermoplastic polyester insulator body.

Feature Summary

• Dual-edge female connector design accommodating non-specified board types
• Low-profile insulator body construction for space-constrained applications
• Gold-plated copper alloy contacts ensuring reliable signal transmission
• Through-hole solder termination for secure PCB attachment

Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standard density connectors
• Test and measurement instrumentation with modular board architectures

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number with official EDAC documentation. Confirm that the specific ordering suffix matches the required pin count and contact plating specifications. Ensure compatibility with the target PCB thickness and mounting style before procurement to avoid integration issues.

Selection Notes

Select this model when a dual-edge female connector with 0.156-inch spacing is required for 50-position applications. Consider the 1.57 mm board thickness tolerance and through-hole mounting constraints. Evaluate the 5 A current rating against system power requirements and verify environmental operating conditions align with the specified temperature range.

Part Context

This component belongs to the EDAC 306 series of standard card edge connectors, which are characterized by their single centerline row and low-profile design. The series supports various position counts and mounting configurations, providing a standardized solution for connecting edge-board modules to base circuits in electronic assemblies.

Replacement Considerations

Compatible substitutes within the same series include 306-025-521-168 and 306-025-521-104, which share identical electrical and mechanical specifications. Verify that any replacement maintains the same 50-position count, dual-edge configuration, and 0.156-inch pitch to ensure direct interchangeability.