B82720H0014A016

Overview

The B82720H0014A016 is a current-compensated ring core double choke from the EPCOS B82720 series, designed for power line filtering applications. It features a rated voltage of 250 V AC and supports a maximum DC current of 300 mA. The component provides an inductance of 4.7 mH at 10 kHz with a maximum DC resistance of 900 mOhms. Constructed with a ferrite core, epoxy coating, polycarbonate case, and polyurethane potting, it ensures UL 94 V-0 flammability ratings. The device utilizes sector winding technology and is available in a horizontal through-hole package with a lead spacing of 10 mm and lead diameter of 0.5 mm.

Feature Summary

• Current-compensated ring core design for effective common mode noise suppression
• Robust construction featuring UL 94 V-0 rated ferrite core, polycarbonate case, and polyurethane potting
• Sector winding technology to optimize magnetic performance and thermal stability

Applications

• Power line filtering in electronic equipment
• Common mode interference suppression in AC/DC input stages
• EMI reduction in industrial control systems

Procurement Notes

Verify the specific part number suffix against official EPCOS/TDK documentation to confirm exact electrical parameters and packaging details. Ensure compatibility with required mounting configurations and environmental operating temperatures. Cross-reference datasheet revisions to confirm material compliance and manufacturing origin before procurement.

Selection Notes

Select this component for applications requiring compact common mode chokes with low DC resistance and high current compensation. Consider the 250 V AC rating and 300 mA current limit when designing power inputs. Evaluate the horizontal through-hole footprint dimensions against PCB layout constraints and verify thermal management requirements for the operating environment.

Part Context

This component belongs to the B82720A/K series of current-compensated ring core double chokes manufactured by EPCOS (now TDK). The series offers various inductance values ranging from 1.1 mH to 22 mH with rated currents from 0.3 A to 2 A. These chokes are widely used in power supply units and electronic devices for filtering electromagnetic interference on AC power lines.

Replacement Considerations

Consult official EPCOS/TDK substitution guides for verified alternatives within the B82720 series or compatible families. Verify that any substitute matches the 4.7 mH inductance, 300 mA current rating, and 250 V AC voltage specification. Confirm mechanical compatibility including lead spacing and mounting orientation.