305-070-520-503

Edgeboard Connectors Overview

The EDAC Inc. model 305-070-520-503 is a standard card edge connector featuring 70 positions arranged in a dual-row configuration. It utilizes a 3.96 mm (0.156 inch) contact pitch and accepts printed circuit boards with a nominal thickness of 1.57 mm (0.062 inch). The connector employs gold-plated copper alloy contacts and supports a current rating of 5 A. Designed for panel mounting, it offers vertical orientation with through-hole solder termination. The insulator body is constructed from thermoplastic polyester, providing an insulation resistance of 5 GOhms and operating within a temperature range of -40°C to +105°C.

Edgeboard Connectors Feature Summary

• Dual-edge female connector design accommodating two-sided card edge PCBs
• Low-profile insulator body constructed from green thermoplastic polyester
• Gold-plated copper alloy contacts ensuring reliable signal transmission
• Panel mount installation style with vertical orientation for secure integration

Edgeboard Connectors Applications

• Industrial control systems requiring robust board-to-board connectivity
• Telecommunications equipment utilizing standard card edge interfaces
• Medical devices needing high-reliability interconnect solutions
• Consumer electronics manufacturing with specific form factor constraints

Edgeboard Connectors Procurement Notes

Verify the exact ordering suffix against the manufacturer's latest datasheet to confirm pin count, plating thickness, and packaging specifications. Ensure compatibility with the target PCB thickness of 1.57 mm before procurement. Confirm RoHS compliance status if required by regional regulations. Cross-reference the Mouser or DigiKey part numbers for accurate availability and lead times. Request sample units for mechanical fit verification prior to large-scale production deployment.

Edgeboard Connectors Selection Notes

Select this component when a 70-position dual-row interface is required for panel-mounted applications. The 3.96 mm pitch suits standard card edge designs, while the 5 A rating supports moderate power distribution. Consider the vertical panel mount style for chassis integration where space efficiency is critical. Verify that the target PCB material can withstand the specified operating temperature range up to 105°C. Ensure the mating card edge thickness aligns precisely with the 1.57 mm specification for optimal contact retention.

Edgeboard Connectors Part Context

This component belongs to the EDAC 305 series of standard card edge connectors, a long-established product line known for reliability in industrial and commercial applications. The series offers various position counts and row configurations to accommodate diverse system requirements. EDAC, now part of Northern Technologies, continues to support this heritage line with updated materials and manufacturing processes. The 305 series remains a common choice for legacy system upgrades and new designs requiring proven card edge technology.

Edgeboard Connectors Replacement Considerations

Direct substitutes include EDAC models 305-070-520-504 and 305-070-556-568, which share similar electrical characteristics but may differ in housing color or specific mechanical tolerances. Verify that any replacement maintains the 70-position count and 3.96 mm pitch. Check if alternative suppliers offer equivalent dual-row connectors with identical panel mount dimensions. Ensure that the contact plating and current ratings meet or exceed the original specifications.