305-056-556-208

Edgeboard Connectors Overview

The EDAC Inc. 305-056-556-208 is a standard card edge connector from the 305 series, designed for dual-edge board connections. It features 56 positions with a 3.96 mm (0.156 inch) pitch and supports PCB thicknesses of 1.37 mm to 1.78 mm. The connector utilizes gold-plated copper alloy contacts with a 10.0 µin (0.25 µm) thickness and half-beam contact type. Rated for 5 A current, it offers 5 GOhms insulation resistance and operates between -40°C and +105°C. The thermoplastic housing is green, and it employs solder pin termination for panel mount installation.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design for non-specified card types
• Gold-plated half-beam contacts ensuring reliable signal transmission
• Thermoplastic housing providing thermal stability up to 105°C
• Panel mount configuration with solder pin termination

Edgeboard Connectors Applications

• Industrial control system interface modules
• Telecommunications equipment backplanes
• Test and measurement instrument cards
• Embedded computing expansion boards

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the official EDAC ordering guide to ensure correct plating and termination specifications. Confirm that the target PCB thickness falls within the 1.37 mm to 1.78 mm range for proper mechanical engagement. Check RoHS compliance status if required by project regulations. Ensure compatibility with existing panel mounting hardware and mating card edge profiles before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a high-density 56-position connection is required with a 3.96 mm pitch. The half-beam contact style provides secure retention for dual-edge cards. Consider the vertical panel mount orientation and solder pin termination method for assembly integration. Verify that the 5 A current rating and temperature range meet the operational environment requirements of the application.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination options for diverse connectivity needs. The 305-056-556-208 specifically addresses applications requiring robust dual-edge connections with gold-plated contacts and thermoplastic insulation for stable performance in demanding environments.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the EDAC 305 series include parts with identical pitch and position counts but different termination styles, such as 305-056-556-278 which uses solder lug termination instead of solder pins. Always verify mechanical dimensions and electrical ratings before substituting.