305-026-520-203

Edgeboard Connectors Overview

The EDAC Inc. 305-026-520-203 is a standard card edge connector from the 305 series, designed for dual-edge PCB applications. It features 26 positions with a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). It utilizes gold-plated copper alloy contacts rated for 5 A current and employs a solder pin termination type. The housing is constructed from thermoplastic polyester, providing insulation resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Dual-row configuration supporting dual-edge PCB insertion
• Gold-plated copper alloy contacts for reliable signal transmission
• Low-profile insulator body made of thermoplastic polyester
• Solder pin termination for secure board mounting

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized module formats
• Test and measurement instruments needing high-density connections

Edgeboard Connectors Procurement Notes

Verify that the target application requires a 26-position connector with 3.96 mm pitch. Confirm the PCB thickness matches the specified 1.57 mm tolerance to ensure proper mechanical engagement. Check if the vertical or straight mounting style aligns with the enclosure design, as this specific part number corresponds to a female connector variant. Ensure compatibility with existing mating cards before procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-edge card interface is required with 26 contacts. The 3.96 mm pitch offers a balance between density and manufacturability. Consider the 5 A current rating for power distribution needs. Compare against other 305 series variants if different position counts or mounting styles are needed. Verify environmental ratings such as the -40°C to +105°C operating range against system requirements.

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 .156 inch contact spacing and various mounting options including panel and PCB mount configurations. The 305-026-520-203 specifically represents a 26-position female receptacle variant within this family, sharing common electrical characteristics with other models in the line.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include parts with identical pitch and position counts but different mounting styles or housing colors, such as the 305-026-500-203. Cross-series replacements require careful evaluation of mechanical dimensions and electrical ratings to ensure functional equivalence without redesigning the host assembly.