305-072-555-503

Edgeboard Connectors Overview

The EDAC Inc. 305-072-555-503 is a dual-edge female card edge connector designed for high-reliability applications. It features 72 positions with a 0.156-inch (3.96 mm) pitch and two rows of contacts. The connector utilizes gold-plated copper alloy terminals to ensure stable signal transmission. It supports PCB thicknesses ranging from 0.054 to 0.070 inches (1.37 to 1.78 mm). The housing is constructed from green thermoplastic polyester, providing robust insulation. Rated for 5A continuous current and 1800VACrms dielectric voltage, it operates within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female configuration with 72 positions for comprehensive board interconnection
• Gold-plated copper alloy contacts ensuring reliable conductivity and corrosion resistance
• Thermoplastic polyester insulator supporting high-temperature operation up to 105°C
• Accepts between-contact and in-contact polarizing keys for secure alignment

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connections
• Telecommunications equipment utilizing standard card edge interfaces
• Automotive electronics demanding high reliability under varying temperatures
• Test and measurement instrumentation needing precise signal integrity

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the official EDAC 305 Series Ordering Guide to confirm terminal plating, contact material, and mounting style match the design requirements. Ensure the target printed circuit board thickness falls within the specified 0.054 to 0.070 inch range to guarantee proper mechanical engagement and electrical performance during assembly.

Edgeboard Connectors Selection Notes

Select this component when a dual-sided connection with 72 pins is required for standard thickness boards. The 0.156-inch pitch accommodates larger trace spacing compared to finer pitches. Consider the 5A current rating and 1800VACrms dielectric strength for power and signal lines. Verify compatibility with polarizing keying options if mechanical locking is necessary for the application environment.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 Series, a line of standard card edge connectors known for versatility. The series offers various mounting styles, termination types, and contact configurations. The 305-072-555-503 specifically represents a dual-edge receptacle variant optimized for general-purpose electronic assemblies where durability and standardized dimensions are prioritized.

Edgeboard Connectors Replacement Considerations

Cross-reference compatible parts within the EDAC 305, 315, and 355 series using the official ordering guide. Verify that substitute models maintain identical pin counts, pitch, and board thickness tolerances. Confirm that alternative terminations and mounting hardware align with the existing PCB layout constraints.