307-026-556-278

Edgeboard Connectors Overview

The EDAC Inc. model 307-026-556-278 is a standard card edge connector from the 307 series, designed for dual-edge board applications. It features 26 positions with a 3.96 mm (0.156 inch) pitch and supports PCB thicknesses ranging from 1.37 mm to 1.78 mm. The connector utilizes gold-plated copper alloy contacts and a green thermoplastic polyester housing. Rated for 5 A current, it operates within a temperature range of -40°C to +105°C and offers an insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-edge female contact configuration for secure board retention
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Thermoplastic polyester housing provides thermal stability and durability

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects
• Telecommunications equipment utilizing dual-edge circuit boards
• Test and measurement instrumentation interfaces

Edgeboard Connectors Procurement Notes

Verify specific ordering suffixes against official EDAC documentation to confirm contact plating, housing color, and mounting style variations. Ensure compatibility with target PCB thickness specifications before procurement. Confirm RoHS compliance status through manufacturer datasheets. Validate lead times directly with authorized distributors as availability may fluctuate based on production schedules.

Edgeboard Connectors Selection Notes

Select this component when dual-edge board connectivity is required with a 3.96 mm pitch. Verify that the application environment stays within the specified -40°C to +105°C operating range. Ensure the PCB thickness falls between 1.37 mm and 1.78 mm for proper mechanical engagement. Confirm that the 5 A current rating meets the electrical requirements of the circuit design.

Edgeboard Connectors Part Context

This part belongs to the EDAC 307 series of standard card edge connectors. The series offers various position counts and mounting configurations. The 307-026 variant specifically addresses applications needing 26 positions. The numbering system encodes position count, pitch, and housing characteristics.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 307 series parts for alternative position counts. Verify dimensional compatibility with existing panel cutouts. Check if single-edge variants meet simplified assembly needs. Confirm identical pitch and thickness tolerances for direct substitution.