RT8521-50-8M6

Overview

The RT8521-50-8M6 is a two-channel common mode choke from the Schaffner RT-Series, designed for PCB mounting via through-hole termination. It features a nanocrystalline core and provides an inductance of 8.6 mH with tolerances of -30% to +50%. The component supports maximum DC currents of 50 A or 80 A depending on configuration, with a maximum DC resistance of 1.7 mOhms. Operating temperatures range from -40°C to +125°C. Physical dimensions are 64 mm in length, 42 mm in width, and 64 mm in height, with a lead diameter of 2.2 mm.

Feature Summary

• Utilizes nanocrystalline core material for high-performance electromagnetic interference suppression.
• Designed as a current-compensated choke for effective common mode noise reduction.
• Constructed with vertical board mount orientation and unshielded design.

Applications

• AC and DC filtering for midsize power range drives
• Automation and industrial LED lighting systems
• EV charging stations and fast chargers
• Photovoltaic inverters and UPS systems

Procurement Notes

Verify the specific current rating requirement (50 A vs 80 A) against the application datasheet, as the part number may correspond to distinct current variants within the series. Confirm that the through-hole footprint and 64x42x64 mm physical dimensions fit the target PCB layout. Ensure the operating temperature range up to 125°C meets the environmental conditions of the final assembly.

Selection Notes

Select this component when nanocrystalline core technology is required for superior low-frequency attenuation compared to ferrite alternatives. The high current handling capability makes it suitable for robust industrial power applications. Consider the unshielded nature of the device during system layout planning to manage magnetic field interactions with nearby sensitive components.

Part Context

This component belongs to the Schaffner RT-Series of EMC chokes, manufactured by TE Connectivity / Schaffner. The series is engineered for demanding industrial environments, offering reliable performance in power conversion and distribution systems. The RT8521 variant specifically targets high-current applications requiring compact yet efficient common mode filtering solutions.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation. Verify compatibility with alternative Schaffnan RT-series parts based on matching inductance and current specifications before substitution.