305-038-555-278

Edgeboard Connectors Overview

The EDAC 305-038-555-278 is a standard card edge connector header featuring 38 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. The component accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). Electrical specifications include a current rating of 5 A and an insulation resistance of 5 GOhms. The contacts are gold-plated copper alloy, while the insulator body is constructed from thermoplastic material. Operating temperature ranges from -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-row female connector design for vertical panel mounting
• Gold-plated copper alloy contacts ensure reliable signal transmission
• Low-profile insulator body accommodates standard 0.062-inch PCBs
• Solder lug termination style provides secure board attachment

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Test and measurement instrument modules
• Embedded computing hardware interfaces

Edgeboard Connectors Procurement Notes

Verify that the specific suffix 278 corresponds to the solder lug termination style rather than pin or surface mount variants within the 305 series. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure panel cutout dimensions align with the specified 3.96 mm pitch and dual-row geometry to prevent mechanical interference during assembly.

Edgeboard Connectors Selection Notes

Select this model when a 38-position interface is required for thick PCB applications. The 3.96 mm pitch offers robust spacing for high-current environments compared to finer pitches. Verify that the mating card edge thickness matches the 1.57 mm specification to maintain proper contact pressure. Consider the vertical panel mount orientation for chassis-based system designs requiring direct board insertion.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series provides various position counts and termination styles for diverse connectivity needs. The 305-038-555-278 specifically addresses requirements for dual-row connections with solder lug endings. It serves as a critical interface element in modular electronic systems requiring durable and standardized board-to-panel connections.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the same family include 305-038-520-502 and 305-038-520-512, which share identical positioning and electrical characteristics but utilize different termination methods such as solder pins.