395-140-520-278

Edgeboard Connectors Overview

The EDAC Inc. 395-140-520-278 is a dual-edge female card edge connector designed for high-density signal and power applications. It features 140 positions with a 0.100-inch (2.54mm) contact pitch and 0.200-inch row spacing. The connector accepts printed circuit boards with a nominal thickness of 0.062 inches. Constructed with gold-plated contacts and a black thermoplastic polyester housing, it supports current ratings up to 3A and operates within a temperature range of -65°C to +105°C. Insulation resistance is specified at 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration for secure board retention
• Gold-plated contacts ensure reliable signal transmission
• Thermoplastic polyester housing provides thermal stability
• Standard 0.100 inch pitch accommodates common PCB thicknesses

Edgeboard Connectors Applications

• Motherboard interconnections
• Daughterboard extensions
• Signal communication modules
• Power connection interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix matches the required contact plating and housing color. Confirm that the board thickness aligns with the 0.062-inch specification to ensure proper mechanical fit. Check insulation resistance requirements against application standards. Ensure soldering processes are compatible with the terminal design for reliable joint formation during assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge interface is required for 140-position connectivity. Consider the 0.100-inch pitch for standard PCB layouts. Evaluate the operating temperature range against environmental conditions. Assess the current rating relative to load requirements. Verify compatibility with existing enclosure constraints and mating hardware specifications.

Edgeboard Connectors Part Context

This part belongs to the EDAC 395 series of card edge connectors. The series is engineered for robust connections between motherboards, daughterboards, and extenders. The numbering system indicates position count, row configuration, and material specifications. This specific model represents a high-pin-count variant suitable for complex electronic assemblies requiring dense I/O pathways.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 395 series variants for similar pin counts. Verify mechanical dimensions and electrical ratings before substituting. Ensure mating connector compatibility. Check for equivalent performance in thermal and current handling capabilities.