305-054-521-208

Edgeboard Connectors Overview

The EDAC Inc. 305-054-521-208 is a standard card edge connector designed for panel mount applications with a vertical orientation. This dual-row header features 54 positions with a contact spacing of 3.96 mm (0.156 inches) and a row spacing of 3.56 mm (0.140 inches). It accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). The contacts are constructed from copper alloy and gold-plated to ensure reliable signal transmission, supporting a continuous current rating of 5 A. The insulator body is made of thermoplastic material, providing electrical insulation with a resistance of 5 GOhms.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Low profile insulator body design suitable for space-constrained panel installations
• Gold-plated copper alloy contacts ensure durable electrical connectivity
• Dual-row configuration provides high-density connection capabilities

Edgeboard Connectors Applications

• Industrial control panels requiring robust card edge interfaces
• Telecommunications equipment housing modular circuit boards
• Test and measurement devices utilizing standardized edge connectors
• Automotive electronics systems needing vertical panel mounting solutions

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix matches the required contact plating and insulator color specifications. Confirm that the target application supports the 3.96 mm pitch and 1.57 mm board thickness constraints. Ensure compatibility with existing polarizing key requirements if between-contact or in-contact keys are utilized. Check regional availability as distribution status may vary by location.

Edgeboard Connectors Selection Notes

Select this component when a dual-row card edge connector with 54 positions is required for vertical panel mounting. The 3.96 mm pitch accommodates standard board layouts while maintaining a low profile. Consider the 5 A current rating and 105 C maximum operating temperature for thermal management planning. Verify that the gold-plated contacts meet the corrosion resistance needs of the environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and configurations for different interface needs. The 305 series is characterized by its reliability in industrial environments and compatibility with standard PCB thicknesses. It serves as a critical interconnect solution for modular electronic assemblies.

Edgeboard Connectors Replacement Considerations

Direct substitutes include EDAC part numbers within the same 305 series family with matching 54-position counts and 3.96 mm pitch, such as 305-054-556-278. Verify mechanical dimensions and electrical ratings before substitution. Cross-model generic features do not guarantee interchangeability without specific datasheet confirmation.