305-050-521-278

Edgeboard Connectors Overview

The EDAC 305-050-521-278 is a standard card edge connector featuring 50 positions arranged in a dual row configuration. It utilizes a 3.96 mm (0.156 inch) contact pitch and is designed for printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The component employs gold-plated copper alloy contacts to ensure reliable signal transmission and corrosion resistance. Rated for 5 A continuous current, it supports panel mount installation with vertical orientation. The insulator body is constructed from thermoplastic polyester, providing structural stability within an operating temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Features low profile insulator body design for compact integration
• Utilizes half-beam contact type for robust mechanical retention

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm compatibility with required polarizing keys and mounting hardware. Ensure that the target application environment remains within the specified thermal limits and that the PCB thickness adheres strictly to the 1.57 mm nominal requirement for optimal contact engagement.

Edgeboard Connectors Selection Notes

Select this model when a high-density dual-row interface is required for thick PCB applications. The 3.96 mm pitch accommodates substantial trace spacing needs. Confirm that the panel mount style aligns with the chassis design constraints and that the vertical orientation fits the available spatial envelope without interference from adjacent components.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by its ability to handle relatively thick circuit boards compared to standard surface-mount alternatives. The numbering convention indicates position count and row configuration, establishing it as a specialized solution for heavy-duty vertical interconnects in modular electronic systems.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the same series include 305-048-521-278 and 305-056-521-278, which share identical electrical and mechanical specifications but differ in position count. Verify dimensional compatibility before substitution.