305-078-556-504

Edgeboard Connectors Overview

The EDAC Inc. 305-078-556-504 is a standard card edge connector from the 305 series, designed for vertical panel mounting. It features 78 positions with a 3.96 mm (0.156 inch) pitch and supports double-sided card edges. The connector utilizes gold-plated copper alloy contacts with a solder pin termination style. It has a continuous current rating of 5 A and withstands 1800 VACrms. The housing is made of thermoplastic material, suitable for operating temperatures between -40°C and +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure alignment
• Provides reliable electrical connection through gold-plated copper alloy contacts
• Supports vertical panel installation with solder pin termination

Edgeboard Connectors Applications

• Industrial control systems requiring polarized card edge connections
• Telecommunications equipment interfaces
• Test and measurement instrumentation backplanes

Edgeboard Connectors Procurement Notes

Verify the specific position count and termination type against project requirements before ordering. Confirm that the polarizing key compatibility matches the system design. Check lead times as availability may vary by region. Ensure the thermal rating aligns with the operational environment constraints.

Edgeboard Connectors Selection Notes

Select this component when a high-density 78-position interface is required with polarizing key support. The 3.96 mm pitch accommodates standard board thicknesses. Consider the 5 A current rating and 1800 VACrms insulation capability for robust performance in demanding environments compared to lower-rated alternatives.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors. The series offers various position counts and termination options. The 305-078 variant specifically provides a high-pin-count solution for double-sided cards. It shares common mechanical dimensions and material properties with other parts in the 305 family.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the 305 series include 305-070-556-504 and 305-054-556-278, though these have different position counts. Verify that any replacement maintains the 3.96 mm pitch and vertical panel mount configuration.