305-072-521-212

Edgeboard Connectors Overview

The EDAC Inc. 305-072-521-212 is a standard card edge connector receptacle featuring 72 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact spacing with a 3.56 mm row spacing, designed to accept printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The contacts are constructed from copper alloy and finished with gold plating to ensure reliable signal transmission. Rated for 5 A continuous current and 1800 VACrms insulation voltage, the unit employs a thermoplastic polyester insulator body. It supports straight PCB mount termination via soldering and operates within a 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 a low-profile insulator body constructed from thermoplastic polyester
• Provides high dielectric strength with an insulation resistance of 5 GOhms

Edgeboard Connectors Applications

• Industrial control systems requiring robust card edge interfaces
• Telecommunications equipment utilizing standardized module connections
• Automotive electronics demanding high vibration resistance

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against official EDAC documentation to confirm exact plating thickness, mating force specifications, and packaging quantities. Ensure that the ordering part number matches the required polarizing key compatibility and board thickness tolerance before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a dual-row female connector is required for 0.062-inch thick PCBs. Confirm that the application environment stays within the specified -40°C to +105°C operating range. Verify that the 5 A current rating and 1800 VACrms insulation requirements align with the system's electrical design parameters.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and row configurations to support diverse electronic assembly needs. The 305 series is characterized by its durable construction and compatibility with standard polarizing keys, ensuring consistent performance across multiple industrial applications.

Edgeboard Connectors Replacement Considerations

Cross-reference compatible parts within the EDAC 305 series that share identical 72-position, dual-row, and 3.96 mm pitch specifications. Verify mechanical footprint and pinout compatibility before substituting.