RT8521-40-10M1

Overview

The RT8521-40-10M1 is a two-channel current-compensated common mode choke manufactured by TE Connectivity / Schaffner. It utilizes a nanocrystalline core material and features through-hole PCB mounting with vertical orientation. The component provides an inductance of 10.1 mH at 100 kHz with a tolerance of -30% to +50%. It supports maximum DC currents of 40 A and 64 A, with a maximum DC resistance of 2.3 mOhms. Operating temperatures range from -40°C to +125°C. Physical dimensions are 60 mm length, 38 mm width, and 60 mm height.

Feature Summary

• Utilizes nanocrystalline core material for effective electromagnetic interference suppression.
• Designed as a current-compensated choke for balanced line filtering applications.
• Constructed for vertical PCB mounting via through-hole termination.
• Operates reliably within extended industrial temperature ranges.

Applications

• AC and DC filtering for midsize power range drives
• Photovoltaic inverters
• EV charging stations and fast chargers
• UPS and switch mode power supplies

Procurement Notes

Verify the specific manufacturer part number against official TE Connectivity / Schaffner documentation to ensure authenticity. Confirm that the nanocrystalline core specifications and current ratings match the design requirements. Check RoHS compliance status directly from the datasheet. Ensure the vertical mounting orientation and pin spacing align with the target PCB layout before finalizing procurement.

Selection Notes

Select this component when high current handling and low DC resistance are required for common mode noise reduction. The nanocrystalline core offers superior performance compared to standard ferrite options. Consider the physical footprint constraints due to the vertical mounting style. Evaluate the thermal management capabilities given the high current ratings and operating temperature limits.

Part Context

This component belongs to the RT-Series of EMC chokes produced by Schaffner. It is designed for robust industrial environments requiring reliable filtering solutions. The series includes various models tailored for different current and inductance requirements. The RT8521 variant specifically addresses applications needing significant current capacity with compact vertical integration.

Replacement Considerations

Cross-reference with other RT-Series models such as RT8521-32-12M8 or RT8521-63-4M4 if current or inductance values differ. Verify compatibility with existing PCB footprints and mounting orientations. Ensure substitute components meet the same nanocrystalline core technology and temperature rating standards.