B82720A2202N040

Overview

The B82720A2202N040 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core and is housed in a polycarbonate case with polyurethane potting. The component has an inductance of 1.1 mH per line, a maximum DC current rating of 2 A, and a typical DC resistance of 65 mOhms. Designed for power line applications, it operates within a temperature range of -40 °C to +125 °C and utilizes a horizontal through-hole mounting style with four pins.

Feature Summary

• Current-compensated ring core design for effective common mode noise suppression
• Polyurethane potting provides mechanical stability and environmental protection
• Polycarbonate case construction ensures UL 94 V-0 flame retardancy

Applications

• Power line filtering in electronic equipment
• Common mode interference suppression in AC mains circuits
• EMI reduction in industrial control systems

Procurement Notes

Verify the specific suffix N040 against official TDK documentation to confirm pin configuration and packaging details. Ensure compatibility with existing board layouts regarding horizontal mounting dimensions and hole spacing. Cross-reference electrical parameters such as inductance tolerance and DC resistance with the latest datasheet to guarantee performance requirements are met for the target application environment.

Selection Notes

Select this component when high current handling up to 2 A is required alongside significant common mode noise attenuation. The through-hole format suits designs prioritizing mechanical robustness over space constraints. Consider the operating temperature range and voltage ratings to ensure suitability for the specific AC line conditions and thermal environment of the end product.

Part Context

This part belongs to the B82720A/K series of power line chokes from EPCOS (TDK). These components are engineered for general-purpose electromagnetic interference suppression in AC power inputs. The series offers various inductance values and current ratings to accommodate different power supply requirements while maintaining compact form factors suitable for standard PCB integration.

Replacement Considerations

Check for direct substitutes within the B82720A series with identical inductance and current ratings. Verify that alternative components match the physical footprint and pinout to ensure seamless integration without redesigning the printed circuit board assembly.