B82731M2601A030

Overview

The B82731M2601A030 is a current-compensated D-core double choke manufactured by EPCOS (TDK). It features ferrite core construction with a nominal inductance of 39 mH and a maximum DC current rating of 600 mA. The component has a maximum DC resistance of 1.5 Ω and operates at a test frequency of 10 kHz, with a maximum self-resonant frequency of 10 kHz. Rated for 250 V AC, it supports an operating temperature range from -40°C to +125°C. Physical dimensions include a height of 20 mm, length of 21 mm, depth of 15 mm, lead pitch of 12.5 mm, and lead diameter of 0.6 mm. Inductance tolerance is specified as -30% to +50%.

Feature Summary

• Current-compensated design utilizing D-core geometry for effective noise suppression.
• Ferrite core material ensures stable performance across wide temperature ranges.
• Vertical radial PCB mounting configuration facilitates through-hole integration.

Applications

• Power line filtering in electronic equipment
• EMI suppression in mains-powered circuits
• Common-mode noise reduction in power supplies

Procurement Notes

Verify the specific suffix codes against official TDK/EPCOS documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the selected variant meets the required voltage ratings and thermal limits for the target application environment. Cross-reference manufacturer part numbers to avoid confusion between similar series components.

Selection Notes

Select this component based on its 39 mH inductance and 600 mA current handling capability for power line applications. Consider the 1.5 Ω DC resistance impact on circuit efficiency. Verify compatibility with the 12.5 mm lead pitch and vertical mounting style during PCB layout design. Confirm compliance with relevant safety standards such as UL, VDE, and EN if required for the end product.

Part Context

This component belongs to the B82731M series of current-compensated double chokes designed for power line interference suppression. The series offers various inductance values and current ratings to suit different power supply requirements. Manufactured by EPCOS, now part of TDK Electronics, these chokes are widely used in industrial and consumer electronics for meeting electromagnetic compatibility regulations.

Replacement Considerations

Check for direct substitutes within the B82731M series with matching inductance and current ratings. Verify physical footprint compatibility, specifically the 12.5 mm lead pitch and overall dimensions. Ensure equivalent thermal and voltage ratings before substitution.