305-082-555-278

Edgeboard Connectors Overview

The EDAC 305-082-555-278 is a standard card edge connector featuring 82 positions arranged in two rows. It utilizes a 3.96 mm (0.156 inch) contact spacing and accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The component employs gold-plated copper alloy contacts for reliable signal transmission and is housed in a green thermoplastic insulator. Designed for vertical panel mounting, it supports a continuous current rating of 5 A and operates within a temperature range of -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 suitable for space-constrained applications
• Includes integrated card guides and functions as a card extender

Edgeboard Connectors Applications

• Direct connection of circuit boards to motherboard slots or receptacles
• Vertical panel-mounted interconnect systems requiring polarizing key support
• High-density electronic assemblies utilizing dual-edge card edge interfaces

Edgeboard Connectors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official catalog to ensure compatibility with required polarizing key configurations and mounting hardware. Confirm that the thermal plastic housing material meets the environmental requirements of the target application environment before finalizing procurement specifications.

Edgeboard Connectors Selection Notes

Select this model when a dual-row interface with 3.96 mm pitch is required for 1.57 mm thick PCBs. Ensure the design accommodates the vertical panel mount style and integrates the necessary polarizing keys. Verify that the 5 A current rating and operating temperature range align with the system's electrical and thermal constraints.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors. The series is characterized by robust construction and versatile mounting options, including straddle mount capabilities. The 305 series provides reliable interconnect solutions for various industrial and commercial electronics applications requiring durable card-to-board connections.

Edgeboard Connectors Replacement Considerations

Cross-reference part numbers within the EDAC 305 series for variations in position count or row configuration. Verify mechanical dimensions and pinout compatibility before substituting with other models from the same manufacturer family.