B82731T2551A020

Overview

The B82731T2551A020 is a current-compensated E-core double choke manufactured by EPCOS (TDK). It features a nominal inductance of 39 mH with a tolerance range of -30% to +50%. The component supports a maximum DC current of 0.55 A and has a maximum DC resistance of 200 mOhms. Rated for 250 V AC, it utilizes a ferrite core and radial termination style. Physical dimensions are 21.5 mm in length, 13.5 mm in width, and 13.5 mm in height. Operating temperature ranges from -40°C to 125°C.

Feature Summary

• Current-compensated design effectively suppresses common mode noise while maintaining signal integrity.
• E-core construction provides robust magnetic shielding and high inductance stability.
• Radial through-hole packaging facilitates easy integration into standard PCB layouts.

Applications

• Power line filtering in industrial electronic equipment
• EMI suppression in consumer electronics power supplies
• Common mode noise reduction in information technology hardware

Procurement Notes

Verify the specific suffix code against official TDK-EPCOS documentation to confirm exact electrical tolerances and approval ratings. Ensure the ordering part number matches the required inductance value and current rating for your circuit design. Cross-reference datasheet revisions to confirm compliance with current RoHS directives and safety standards such as VDE or UR before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring effective common mode noise suppression at low frequencies. The 39 mH inductance is suitable for filtering applications where moderate current handling up to 0.55 A is needed. Consider the radial package constraints and physical dimensions during PCB layout planning to ensure adequate clearance and mechanical stability within the enclosure.

Part Context

This component belongs to the B82731T series of current-compensated E-core double chokes. These components are designed for power line applications, offering a balance between size and performance. The series covers a wide range of inductance values and current ratings, making it versatile for various filtering needs in automotive, industrial, and consumer electronics markets.

Replacement Considerations

Consult official TDK-EPCOS substitution guides for compatible alternatives. Verify that any substitute maintains identical mounting dimensions, pin configurations, and electrical characteristics including inductance tolerance and rated current to ensure circuit compatibility.