305-070-556-503

Edgeboard Connectors Overview

The EDAC Inc. 305-070-556-503 is a standard card edge connector from the 305 Series, designed for dual-edge board applications. It features a 70-position female configuration with a 3.96 mm (0.156 inch) contact spacing and a 3.56 mm row spacing. The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Constructed with copper alloy contacts featuring gold plating, it supports a current rating of 5 A. The housing is made of green thermoplastic polyester, ensuring reliable performance within an operating temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female configuration for secure connection to double-sided card edge PCBs
• Gold-plated copper alloy contacts ensure low resistance and corrosion resistance
• Thermoplastic polyester insulator body provides thermal stability and mechanical strength
• Vertical panel mounting style facilitates integration into chassis or enclosure systems

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Automotive electronic module connections
• Test and measurement instrument interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm compatibility with required board thickness and mounting style. Ensure that the selected variant matches the necessary environmental certifications, such as RoHS compliance, for your specific application requirements. Cross-reference the part number with authorized distributors to confirm availability and lead times prior to finalizing procurement plans.

Edgeboard Connectors Selection Notes

Select this component when a high-density 70-position interface is required for double-sided card edge applications. The 3.96 mm pitch offers a balance between signal density and manufacturing ease. Consider the vertical panel mount option if space constraints require a perpendicular orientation relative to the mating board. Verify that the 5 A current rating meets the power distribution needs of the connected circuitry.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 Series, which provides a range of standard card edge solutions. The series is characterized by its robust construction and versatile mounting options, including panel and PCB mount styles. The 305 Series is widely used in industries requiring reliable interconnects for modular electronic systems, offering consistent performance across various environmental conditions.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include 305-070-556-502 and 305-070-556-508, which share similar electrical characteristics but may differ in mounting style or contact type. Always verify dimensional drawings and pin configurations before substitution to ensure mechanical compatibility with existing PCB layouts and enclosures.