387-040-521-878

Edgeboard Connectors Overview

The EDAC Inc. 387-040-521-878 is a card edge connector from the 387 Series, designed for single-sided board applications. It features 40 positions with a female contact type and a 0.156 inch (3.96 mm) pitch. The connector utilizes gold-plated cantilever contacts housed in a black thermoplastic polyester insulator. It supports PCB thicknesses ranging from 0.054 to 0.070 inches (1.37 mm to 1.78 mm). The unit employs through-hole termination and operates within a temperature range of -40°C to 105°C.

Edgeboard Connectors Feature Summary

• Single-sided female connection utilizing cantilever spring contacts for reliable engagement
• Gold plating on contacts ensures corrosion resistance and stable signal transmission
• Thermoplastic polyester housing provides thermal stability and mechanical durability
• Through-hole mounting with flange options facilitates secure panel integration

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Medical device circuit boards
• Consumer electronics mainboards

Edgeboard Connectors Procurement Notes

Verify the specific flange configuration required for your assembly, as the 387 series offers variations such as threaded or non-threaded top-mount openings. Confirm that the target PCB thickness falls within the specified 1.37 mm to 1.78 mm range to ensure proper contact retention. Cross-reference the RoHS3 compliance status if environmental regulations apply to your manufacturing process. Ensure the ordering suffix matches the exact mechanical dimensions needed for your enclosure design.

Edgeboard Connectors Selection Notes

Select this component when a high-density single-row interface is required for thick PCBs up to 0.070 inches. The 0.156-inch pitch allows for broader trace spacing compared to finer pitches, aiding in high-voltage isolation if necessary. Consider the cantilever contact design for ease of insertion and removal during maintenance. Evaluate the operating temperature range against your environment to confirm suitability for industrial or outdoor applications.

Edgeboard Connectors Part Context

This part belongs to the EDAC 387 Series, which specializes in standard card edge connectors for robust industrial and commercial use. The series is characterized by its durable construction and versatile mounting options. Components in this line are engineered to withstand harsh environments while maintaining consistent electrical performance over extended service life cycles.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and position counts but different flange styles, such as 387-040-521-668. Verify mechanical compatibility before swapping, as flange thread types and mounting hole configurations vary across the series.