305-050-500-278

Edgeboard Connectors Overview

The EDAC Inc. 305-050-500-278 is a standard card edge connector from the 305 series, designed for panel mounting in a vertical orientation. It features a dual-row configuration with 50 positions and a contact spacing of 3.96 mm (0.156 inches). The row spacing measures 3.56 mm. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Electrical specifications include a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The operating temperature range spans from -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features a low-profile insulator body constructed from thermoplastic material
• Utilizes gold-plated copper alloy contacts with a half-beam spring design

Edgeboard Connectors Applications

• Panel-mounted electronic interconnections requiring polarized keying
• Vertical mating with double-sided card edge PCBs
• Industrial control systems operating within specified thermal limits

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, termination style, and flange characteristics. Ensure compatibility with the target PCB thickness of 1.57 mm and required polarizing key configurations before procurement. Cross-reference the part number with authorized distributors to confirm current availability status.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with 3.96 mm pitch is required for panel installation. The 50-position layout suits applications needing substantial I/O density. Verify that the 5 A current rating and 1800 VACrms dielectric strength meet system electrical requirements. Confirm the vertical mounting angle aligns with the mechanical enclosure design constraints.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, which provides various mounting options and position counts for card edge applications. The series supports both single and double-sided PCBs. Similar parts in the family differ by position count, such as the 305-018 or 305-040 variants, while maintaining consistent pitch and mechanical interface standards.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-050-520-278 and 305-050-500-202. Verify that alternative part numbers match the 50-position count, 3.96 mm pitch, and panel mount vertical orientation. Ensure the replacement maintains identical polarizing key acceptance and current ratings.