305-078-521-504

Edgeboard Connectors Overview

The EDAC Inc. 305-078-521-504 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 78 positions in a dual female configuration with a contact spacing of 0.156 inches (3.96 mm). The connector utilizes gold-plated copper alloy contacts and a thermoplastic polyester housing. It supports a continuous current rating of 5 A and operates within a temperature range of -40°C to +105°C. The unit accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm) and employs solder pin termination.

Edgeboard Connectors Feature Summary

• Dual female card edge interface with 78 positions for high-density signal routing
• Gold-plated copper alloy contacts ensure reliable conductivity and corrosion resistance
• Thermoplastic polyester insulator body provides structural stability and thermal endurance
• Panel mount design with vertical orientation facilitates secure board integration

Edgeboard Connectors Applications

• Industrial control systems requiring robust panel-mounted interconnects
• Telecommunications equipment utilizing standard card edge form factors
• Test and measurement instrumentation needing high-pin-count vertical connectors
• Automotive electronics assemblies compatible with 3.96 mm pitch specifications

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact pin count, plating thickness, and flange characteristics. Ensure compatibility with the target PCB thickness of 1.57 mm and verify that the panel mounting style aligns with the mechanical enclosure design. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a high-pin-count, dual-row female connector is required for vertical panel mounting. The 3.96 mm pitch and 5 A current rating suit applications demanding stable power and signal transmission. Consider the thermoplastic housing material for environmental durability and verify that the 78-position layout fits the available space constraints within the system architecture.

Edgeboard Connectors Part Context

This part belongs to the EDAC 305 series of standard card edge connectors, which are widely used in industrial and commercial electronic assemblies. The series offers various position counts while maintaining consistent mechanical and electrical specifications. The 305-078-521-504 variant specifically addresses needs for higher density connections in a compact vertical profile, supporting reliable performance across diverse operating temperatures.

Edgeboard Connectors Replacement Considerations

Compatible substitutes within the EDAC 305 series include parts with identical 78-position dual female configurations and matching 3.96 mm pitch. Verify that alternative part numbers maintain the same 5 A current rating, gold plating specification, and thermoplastic housing material to ensure functional equivalence without mechanical modification.