305-056-555-203

Edgeboard Connectors Overview

The EDAC Inc. 305-056-555-203 is a standard card edge connector featuring 56 positions arranged in two rows. It utilizes a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). Designed for panel mount installation, this vertical header accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches), accommodating a range from 1.37 mm to 1.78 mm. The contacts are gold-plated copper alloy, rated for 5 A current, and the unit operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row configuration with 56 total positions for high-density signal routing
• Gold-plated copper alloy contacts ensure reliable conductivity and corrosion resistance
• Low-profile insulator body designed for space-constrained panel installations
• Vertical orientation facilitates direct connection to double-sided card edge PCBs

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standardized card edge interfaces
• Test and measurement instrumentation with modular board architectures
• Automotive electronics assemblies demanding high reliability

Edgeboard Connectors Procurement Notes

Verify that the target application requires a dual-edge card interface compatible with the specified 1.57 mm board thickness. Confirm that the mating PCB traces align with the 3.96 mm pitch and 3.56 mm row spacing. Ensure environmental conditions remain within the -40°C to +105°C operational range. Check for any specific flange or mounting hole requirements not detailed in standard specifications before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count, dual-row card edge connector is required for panel mounting. The 3.96 mm pitch offers a balance between density and manufacturability. Consider the 5 A current rating per contact for power distribution needs. This series is suitable for applications where vertical insertion into a backplane or chassis slot is necessary, providing secure mechanical retention alongside electrical connectivity.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors known for their versatility in industrial and commercial applications. The series typically includes various position counts and termination styles. The 305-056-555-203 specifically represents a 56-position variant with gold plating and solder pin termination, fitting within the broader family of low-profile headers designed for durable performance in demanding environments.

Edgeboard Connectors Replacement Considerations

Direct substitutes may include other EDAC 305 series parts with matching 56 positions and 3.96 mm pitch, such as the 305-056-555-203 variants with different flange options. Cross-brand replacements must strictly match the 1.57 mm board thickness tolerance and dual-row geometry. Verify that alternative components meet the same 5 A current rating and thermal specifications to ensure functional equivalence.