B82720A2301N040

Overview

The B82720A2301N040 is a current-compensated ring core double choke designed for power line applications. It features an inductance of 12 mH and a rated current of 0.3 A. The component has a maximum DC resistance of 1.1 Ohm and operates within a temperature range of -40°C to +125°C. It utilizes a ferrite core with epoxy coating, housed in a UL 94 V-0 polycarbonate case with polyurethane potting. The device supports a rated voltage of 250 V AC and is available in a horizontal through-hole package measuring 14.20 mm x 14.20 mm.

Feature Summary

• Current-compensated ring core construction for effective common mode noise suppression
• Epoxy coated ferrite core enclosed in a UL 94 V-0 rated polycarbonate case
• Polyurethane potting provides mechanical stability and environmental protection

Applications

• Power line filtering in electronic equipment
• Common mode interference suppression in AC mains circuits
• Noise reduction in devices requiring 250 V AC isolation

Procurement Notes

Verify the specific suffix N040 against official EPCOS/TDK documentation to confirm packaging and reel specifications. Ensure the ordering part number matches the required inductance tolerance and current rating for the target application. Cross-reference datasheet revisions to confirm compliance with current RoHS and REACH standards before finalizing procurement.

Selection Notes

Select this component when a horizontal through-hole mounting style is required for power line chokes. The 12 mH inductance and 0.3 A current rating suit low-power AC line filtering needs. Consider the 1.1 Ohm DC resistance for potential voltage drop calculations in series applications. Verify that the 14.20 mm footprint fits the PCB layout constraints.

Part Context

This component belongs to the B82720A/K series of current-compensated ring core double chokes manufactured by EPCOS (now TDK Electronics). The series covers various inductance values from 1.1 mH to 22 mH and current ratings from 0.3 A to 2 A. These chokes are standardized for use in general-purpose power line filtering across consumer and industrial electronics.

Replacement Considerations

Check the B82720K2301N040 for vertical mounting alternatives within the same series. Verify electrical equivalence for other B82720 variants if space or orientation constraints differ.