337-078-556-207

Edgeboard Connectors Overview

The EDAC Inc. part number 337-078-556-207 is a standard card edge connector designed for board edge or straddle mount applications. It features a dual female configuration with 78 positions arranged in two rows. The connector utilizes a 3.96 mm (0.156 inch) pitch and is constructed with copper alloy contacts finished with gold plating to ensure reliable signal transmission. The housing is made of thermoplastic polyester, providing durability and insulation resistance of 5 GOhms. Designed for through-hole termination via soldering, this component supports a current rating of 3 A per contact. It operates within a temperature range of -40°C to +105°C and accommodates a board thickness of 1.57 mm.

Edgeboard Connectors Feature Summary

• Dual row female card edge interface for high-density signal routing
• Gold-plated copper alloy contacts for corrosion resistance and conductivity
• Thermoplastic polyester housing for thermal stability and insulation
• Straddle mount or board edge installation capability

Edgeboard Connectors Applications

• Industrial control system backplanes
• Telecommunications equipment interconnects
• Computing hardware expansion slots
• Test and measurement instrument modules

Edgeboard Connectors Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact termination style and mounting orientation. Ensure compatibility with the target PCB board thickness of 1.57 mm. Confirm that the required current rating of 3 A aligns with the application's electrical load requirements before finalizing procurement.

Edgeboard Connectors Selection Notes

Select this component when a dual-row, 78-position connection is required for vertical or straddle-mounted assemblies. The 3.96 mm pitch dictates the trace spacing on the mating card. Consider the through-hole solder termination method for mechanical stability. Verify that the operating temperature range meets the environmental conditions of the intended deployment site.

Edgeboard Connectors Part Context

This component belongs to the EDAC 337 series of standard card edge connectors. The series offers various position counts and termination options to suit different density requirements. The 337 series is widely used in modular electronic systems requiring robust, repeatable connections between circuit boards and backplanes or chassis mounts.

Edgeboard Connectors Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching all electrical parameters, mechanical dimensions, and pin configurations exactly.