B82720K2301N042

Overview

The B82720K2301N042 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core with an epoxy coating and a polycarbonate case. The component has a rated voltage of 250 V AC and a rated current of 0.3 A. The nominal inductance is 22 mH with a tolerance of -30% to +50%. The maximum DC resistance is 1.5 Ohms. It operates within a temperature range of -40 °C to +125 °C. Physical dimensions are 13 mm length, 9.5 mm width, and 14 mm height. It utilizes through-hole vertical mounting.

Feature Summary

• High resonance frequency achieved through special winding technique
• Approximately 1% stray inductance for symmetrical interference suppression
• Suitable for wave soldering processes
• Design complies with EN 60938-2 (VDE 0565-2)

Applications

• Suppression of common-mode interferences
• Compact electronic ballasts in lamps
• Compact switch-mode power applications

Procurement Notes

Verify the specific suffix N042 against official TDK/EPCOS documentation to confirm pin configuration and packaging details. Ensure the application environment stays within the specified -40 °C to +125 °C operating temperature range. Confirm that the 0.3 A rated current meets the circuit requirements to prevent saturation or overheating. Check for RoHS compliance status if required by local regulations.

Selection Notes

Select this component when high resonance frequency and low stray inductance are critical for noise suppression. The 22 mH inductance at 0.3 A rating suits compact power supplies. Verify physical space constraints against the 13x9.5x14 mm footprint. Ensure compatibility with wave soldering if used in automated assembly lines. Consider the polycarbonate case material for environmental protection.

Part Context

This part belongs to the B82720K series of current-compensated ring core double chokes designed for power line applications. These components are engineered for efficient common-mode interference suppression in compact electronic devices. The series offers various inductance values and current ratings to suit different power supply designs.

Replacement Considerations

Consult official TDK/EPCOS substitution guides for equivalent parts with matching inductance and current ratings. Verify mechanical dimensions and terminal configurations before replacing to ensure PCB compatibility.

FAQ

What is the stray inductance value of the B82720K2301N042?

The component has approximately 1% stray inductance, which allows for symmetrical interference suppression.

Is the B82720K2301N042 suitable for wave soldering?

Yes, the design is explicitly stated as suitable for wave soldering processes.