305-070-521-208

Edgeboard Connectors Overview

The EDAC Inc. 305-070-521-208 is a standard card edge connector from the 305 series, designed for panel mount applications with a vertical orientation. It features 70 positions arranged in a dual row configuration with a contact spacing of 0.156 inches (3.96 mm) and a row spacing of 0.140 inches (3.56 mm). The connector accepts printed circuit boards with a nominal thickness of 0.062 inches (1.57 mm). Contacts are constructed from copper alloy with gold plating, providing a continuous current rating of 5 A and an insulation resistance of 5 GOhms. The housing is made of green thermoplastic polyester, supporting an operating temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Accepts between-contact and in-contact polarizing keys for secure board alignment
• Low profile insulator body design suitable for compact panel installations
• Gold-plated copper alloy contacts ensure reliable electrical performance

Edgeboard Connectors Applications

• Industrial control systems requiring high-density interconnects
• Communication equipment backplanes
• Medical device signal processing modules
• Energy sector instrumentation panels

Edgeboard Connectors Procurement Notes

Verify the specific suffix codes against the official EDAC ordering guide to confirm exact pin count, termination style, and plating specifications. Ensure compatibility with the target PCB thickness of 0.062 inches. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement orders.

Edgeboard Connectors Selection Notes

Select this component when a 70-position dual-row interface is required for vertical panel mounting. The 0.156-inch pitch accommodates standard card edge designs. Consider the 5A current rating and thermal limits for high-power applications. Verify that the polarizing key requirements match the system design constraints.

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 electronics. The series offers various position counts and termination options, all sharing common mechanical dimensions and electrical characteristics. The 305 series is known for its robust construction and reliability in demanding environments.

Edgeboard Connectors Replacement Considerations

Cross-reference with other EDAC 305 series variants for alternative pin counts or termination styles. No direct public substitute part numbers are confirmed for this specific model.