B82721K2282U030

Overview

The B82721K2282U030 is a current-compensated ring core double choke manufactured by EPCOS (TDK Electronics). It features a ferrite core and radial through-hole termination. The component provides an inductance of 4 µH with a maximum DC current rating of 2.8 A. Its maximum DC resistance is 0.05 Ohms, and it operates within a temperature range of -40 °C to +70 °C. The physical dimensions are 18.2 mm in length, 13.2 mm in width, and 20.3 mm in height.

Feature Summary

• Current-compensated design for effective common mode noise suppression
• Ferrite ring core construction for stable magnetic performance
• Radial through-hole mounting for secure PCB integration

Applications

• General use electronic circuits
• Home appliance power line filtering

Procurement Notes

Verify the specific ordering suffix U030 confirms the +70 °C operating temperature rating. Confirm the inductance value is 4 µH and not confused with similar series variants like K2262 or K2301. Ensure the package type matches the required radial lead configuration for your assembly process.

Selection Notes

Select this component when a low-inductance common mode choke is required for high-current applications up to 2.8 A. The +70 °C temperature rating suits standard industrial and consumer environments. Compare against higher inductance values if stronger noise attenuation at lower frequencies is needed.

Part Context

This part belongs to the B82721K series of power line chokes from EPCOS/TDK. These components are designed for electromagnetic compatibility (EMC) filtering in AC/DC power supplies and other electronic equipment requiring common mode interference reduction.

FAQ

What is the maximum DC current rating for this choke?

The maximum DC current rating is 2.8 A.

What is the operating temperature range?

The operating temperature range is -40 °C to +70 °C.