305-020-520-578

Edgeboard Connectors Overview

The EDAC Inc. 305-020-520-578 is a standard card edge connector from the 305 series, designed for dual-edge PCB applications. It features 20 positions with a 3.96 mm (0.156 inch) pitch and supports a maximum board thickness of 1.57 mm. The connector utilizes gold-plated copper alloy contacts to ensure reliable signal transmission and includes a 5 A current rating. Constructed with thermoplastic polyester insulation, it operates within a temperature range of -40°C to +105°C. This vertical panel-mount receptacle accepts between-contact and in-contact polarizing keys for secure mating.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for enhanced connection stability
• Features gold-plated copper alloy contacts for durable electrical performance
• Designed for dual-edge card configurations with vertical panel mounting

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized connector pitches
• Test and measurement devices needing polarized keying options

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, contact plating thickness, and mounting style variations. Ensure compatibility with the target PCB thickness and polarizing key requirements before procurement. Cross-reference the component number with the latest EDAC documentation to avoid discrepancies in mechanical dimensions or material specifications.

Edgeboard Connectors Selection Notes

Select this model when a dual-row, 20-position interface with a 3.96 mm pitch is required. The vertical panel mount style suits applications where space efficiency is critical. Confirm that the 5 A current rating and operating temperature range meet the system's environmental and electrical demands. Verify that the housing material and contact finish align with long-term reliability goals.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series, which provides a range of card edge connectors with consistent 3.96 mm spacing. The series offers various position counts and mounting styles to accommodate different design constraints. The 305-020-520-578 specifically addresses needs for moderate density connections with polarizing capabilities.

Edgeboard Connectors Replacement Considerations

Consult the EDAC 305 Series Ordering Guide for direct substitutes with differing position counts or mounting angles. Ensure any replacement maintains the 3.96 mm pitch and dual-edge compatibility. Verify mechanical fit and electrical ratings match the original design specifications.