305-056-556-558

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-558 is a standard card edge connector header featuring 56 positions with a 3.96 mm pitch and dual rows. Designed for panel mounting at a vertical angle, it accommodates printed circuit boards with a nominal thickness of 1.57 mm. The contacts are constructed from copper alloy, gold-plated on the mating area, and tin-plated on the tails with nickel underplating. It supports a current rating of 5 amps and operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual row configuration with 56 positions for high-density connections
• Gold plating on mating surfaces ensures reliable signal transmission
• Vertical panel mount design facilitates secure board integration

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standard PCB form factors
• Test and measurement instrumentation with modular board architectures

Edgeboard Connectors Procurement Notes

Verify the specific part number against official EDAC documentation to confirm contact plating specifications and dimensional tolerances. Ensure compatibility with the target PCB thickness of 1.57 mm before procurement. Cross-reference the manufacturer's datasheet for accurate environmental ratings and mechanical constraints to prevent installation errors.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with a 3.96 mm pitch is required for vertical panel mounting. Consider the 56-position count and 5-amp current rating relative to system power needs. Verify that the gold-tin plating combination meets the corrosion resistance and conductivity requirements for the intended operational environment.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and mounting styles while maintaining consistent 3.96 mm spacing. The 305-056-556-558 variant specifically provides a dual-row interface suitable for applications demanding structured connectivity between backplanes and daughter cards.

Edgeboard Connectors Replacement Considerations

Direct substitutes must match the 56-position count, 3.96 mm pitch, and dual-row layout. Verify that alternative headers support the same 1.57 mm PCB thickness and vertical panel mounting orientation. Confirm identical electrical ratings and plating specifications to ensure functional interchangeability.