305-020-500-503

Edgeboard Connectors Overview

The EDAC Inc. 305-020-500-503 is a dual-edge card edge connector designed for reliable signal and power transmission in electronic assemblies. It features 20 positions with a contact spacing of 0.156 inches (3.96mm) and a row spacing of 0.140 inches (3.56mm). The connector utilizes gold-plated copper alloy contacts with a thickness of 10.0µin (0.25µm) to ensure low contact resistance and durability. Termination is achieved via solder eyelets, providing a secure mechanical and electrical bond to the printed circuit board. The unit accepts polarizing keys for precise alignment during insertion.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for accurate positioning
• Features a low-profile insulator body suitable for space-constrained designs
• Supports nominal PCB thickness of 0.062 inches (1.57mm)
• Provides a continuous current rating of 5A and dielectric strength of 1800VACrms

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge connections
• Telecommunications equipment with high-density interconnect needs
• Consumer electronics utilizing modular board architectures
• Automotive electronic modules demanding reliable signal integrity

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required contact finish and termination style. Confirm compatibility with the target PCB stack-up and thickness specifications. Ensure that polarizing key requirements are met by the mating assembly design. Cross-reference the manufacturer's latest datasheet for any updates on material composition or environmental ratings before final procurement decisions.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge configuration with 20 positions is required for standard thickness boards. Consider the 0.156-inch spacing for general-purpose signal routing where higher density is not critical. Evaluate the solder eyelet termination against wave or selective soldering processes available in the manufacturing line. Assess the need for polarizing keys if misalignment risks exist in the assembly process.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which offers various configurations for card edge applications. The series is known for its versatility in accepting different keying options and contact finishes. Similar parts in the lineup may vary in position count, row configuration, or termination method, allowing designers to tailor the solution to specific board layout constraints and performance requirements.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include variants like 305-020-500-202 and 305-020-500-203, which share similar form factors but may differ in contact finish or packaging. Verify that any replacement maintains the same 20-position count and 0.156-inch spacing to ensure mechanical fit. Check for equivalent electrical ratings and termination styles to guarantee functional interchangeability without redesigning the PCB footprint.