305-026-500-278

Edgeboard Connectors Overview

The EDAC 305-026-500-278 is a standard card edge connector from the 305 series, designed for panel mount applications. It features a dual-row configuration with 26 positions and a 3.96 mm (0.156 inch) pitch. The contacts are made of copper alloy with gold plating, supporting a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The housing is constructed from thermoplastic material. This component accepts between-contact and in-contact polarizing keys and provides a dielectric withstand voltage of 1800 VACrms. It operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure positioning
• Dual-row design with solder eyelet termination for panel mounting
• Gold-plated copper alloy contacts ensure reliable signal transmission

Edgeboard Connectors Applications

• Panel-mounted electronic interconnections
• Industrial control system backplanes
• Test and measurement equipment interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm contact finish thickness and housing color variations. Ensure compatibility with the intended PCB card thickness specifications before procurement. Cross-reference the part number with authorized distributors to confirm current availability status and lead times, as supply chain conditions may affect delivery schedules for this specific component.

Edgeboard Connectors Selection Notes

Select this connector when a robust panel-mount solution with high dielectric strength is required. The 3.96 mm pitch accommodates larger gauge traces or higher power requirements compared to finer pitches. Verify that the application environment stays within the specified -40°C to +105°C operating range. Consider the need for polarizing keys if mechanical alignment is critical for the mating card edge assembly.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination styles tailored for different board densities. The 305-026 variant specifically addresses mid-density requirements with a 26-position layout. It is engineered for durability in industrial settings, utilizing thermoplastic housings and gold-plated contacts to maintain performance over repeated insertions.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 3.96 mm pitch, 26-position count, dual-row configuration, and panel mount style. Verify that alternative parts support the same 5 A current rating and 1800 VACrms dielectric withstand voltage. Ensure the replacement connector utilizes compatible solder eyelet terminations and fits the same panel cutout dimensions.