B82721A2301N020

Overview

The B82721A2301N020 is a current-compensated ring core double choke designed for power line applications. It features a rated inductance of 47 mH and a rated current of 300 mA at +40 °C. The component has a maximum rated voltage of 250 V AC. Its DC resistance is specified as 1.1 Ohm. The device utilizes a ferrite core material and is housed in a surface-mount package with dimensions of 17.9 mm length, 17.3 mm width, and 12.6 mm height. It operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Provides common mode noise suppression through current-compensated ring core design
• Supports high inductance values for effective power line filtering
• Rated for 250 V AC operation in industrial environments

Applications

• Power supply input filtering
• Industrial equipment EMI suppression
• Consumer electronics power lines

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and tolerance specifications. Confirm that the component meets RoHS compliance requirements for your target market. Cross-reference the part number with the latest TDK Electronics documentation to avoid discrepancies between legacy EPCOS naming conventions and current product identifiers.

Selection Notes

Select this component when a high inductance value of 47 mH is required for common mode interference reduction. Ensure the operating current does not exceed 300 mA to maintain performance integrity. Verify that the surface-mount footprint matches the PCB layout constraints. Consider the thermal characteristics and ambient temperature limits during system integration.

Part Context

This component belongs to the B82721A series of power line chokes manufactured by TDK Electronics (formerly EPCOS). The series offers various inductance and current ratings tailored for different power line filtering needs. These components are widely used in electronic devices requiring robust electromagnetic compatibility solutions.

Replacement Considerations

Consult the official TDK Electronics replacement guide for direct substitutes. Verify pinout compatibility and electrical parameters before swapping with other common mode chokes from different manufacturers.