305-056-556-278

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-278 is a standard card edge connector from the 305 Series, designed for dual-row configuration with 56 positions. It features a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). The component accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). It utilizes gold plating on the mating area and tin plating on tails with nickel underplating. The connector has a vertical mounting style and an operating temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female connector design for high-density interconnect applications
• Gold-plated contacts ensure reliable signal transmission and corrosion resistance
• Low-profile insulator body accommodates space-constrained panel installations

Edgeboard Connectors Applications

• Medical interconnect systems requiring durable connections
• Agricultural technology equipment facing harsh environments
• Industrial control panels utilizing standard card edge interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm plating specifications and material composition. Ensure compatibility with the target PCB thickness of 1.57 mm before procurement. Confirm that the vertical mounting style aligns with the mechanical assembly requirements. Check for RoHS compliance status if restricted substances are a constraint for the final product.

Edgeboard Connectors Selection Notes

Select this model when a dual-row interface with 3.96 mm pitch is required for 1.57 mm thick boards. The 56-position count suits applications needing moderate channel density without excessive board width. Consider the vertical orientation for panel-mount designs where space above the board is limited. Verify that the 5-amp current rating meets the electrical load requirements of the connected circuitry.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 Series, which offers various mounting options and configurations for card edge applications. The series is characterized by its robust construction suitable for demanding environments. Similar parts in the lineup vary by position count and row spacing, allowing for scalable design solutions across different hardware platforms.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include models with identical 3.96 mm pitch and 1.57 mm board thickness acceptance. Verify pin count and row configuration match exactly. Cross-reference part numbers such as 305-056-556-558 for potential alternative plating or termination styles if available.