B82722A2202N020

Overview

The B82722A2202N020 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core and rectangular construction with radial leads. The component has a rated inductance of 4.2 mH and a maximum DC current rating of 2 A. Its maximum DC resistance is specified at 135 milliohms. The device operates within a temperature range of -40 °C to +125 °C and supports a rated voltage of 250 V AC. Physical dimensions include a maximum length of 22.70 mm.

Feature Summary

• Current-compensated ring core design for efficient magnetic field cancellation
• Dual-channel configuration providing common mode filtering capability
• Radial leaded termination suitable for through-hole PCB mounting

Applications

• Power line chokes for AC mains filtering
• EMI suppression in general purpose power supplies
• Common mode noise reduction in electronic equipment input stages

Procurement Notes

Verify the specific inductance tolerance and DC resistance values against the official EPCOS datasheet prior to ordering, as these parameters can vary based on manufacturing batches and testing conditions. Confirm that the radial lead spacing matches the target PCB footprint requirements. Ensure the operating temperature range aligns with the thermal environment of the final application to guarantee long-term reliability and performance stability under load.

Selection Notes

Select this component when a compact, current-compensated choke is required for low-current AC line applications up to 2 A. The 4.2 mH inductance value is suitable for standard EMI filter designs where moderate attenuation is needed. Consider the physical size constraints and the need for through-hole mounting technology. This part is appropriate for designs prioritizing cost-effective common mode noise suppression without requiring high-frequency surface mount solutions.

Part Context

This component belongs to the B82722 series of power line chokes from EPCOS. These devices are designed for use in environments requiring robust electromagnetic interference filtering. The series utilizes ferrite core technology to achieve high inductance in a small form factor. The B82722A variant specifically denotes the current-compensated ring core construction, distinguishing it from other series configurations within the TDK passive components portfolio.

Replacement Considerations

B82722A2202N001