305-038-556-501

Edgeboard Connectors Overview

The EDAC Inc. 305-038-556-501 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 38 positions arranged in two rows with a contact spacing of 3.96 mm (0.156 inches). The connector accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inches). Contacts are made of copper alloy and finished with gold plating to ensure reliable electrical performance. The unit supports a continuous current rating of 5 A and offers an insulation resistance of 5 GOhms. The housing is constructed from green thermoplastic polyester, suitable for operating temperatures ranging from -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 for compact installation
• Provides high dielectric strength with a 1800VACrms rating

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications equipment utilizing standard card edge interfaces
• Test and measurement instruments needing reliable signal transmission

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required 38-position configuration and dual-row layout before ordering. Confirm that the receiving PCB meets the nominal 1.57 mm thickness specification to ensure proper mechanical engagement. Check for RoHS3 compliance requirements if environmental regulations apply to the final assembly. Ensure that the panel mounting style aligns with the design constraints of the enclosure.

Edgeboard Connectors Selection Notes

Select this component when a vertical, panel-mount solution is required for double-sided card edge connections. The 3.96 mm pitch is suitable for applications where space allows for wider spacing compared to finer pitches. Consider the 5 A current rating to ensure it meets the power distribution needs of the circuit. The gold-plated contacts are appropriate for environments where corrosion resistance and low contact resistance are critical for long-term reliability.

Edgeboard Connectors Part Context

This connector belongs to the EDAC 305 series, which is a family of standard card edge connectors known for their versatility in various electronic assemblies. The series includes multiple position counts and row configurations to accommodate different board sizes. The 305 series is widely used in industries such as aerospace, defense, and industrial automation due to its durability and standardized dimensions.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the same series include the 305-038-556-508 and 305-038-520-502. These alternatives share identical mechanical dimensions, pin count, and pitch specifications. Verify that the termination type and contact finish match the original design requirements before substituting.