B82746S4203A040

Overview

The B82746S4203A040 is a ring core choke manufactured by EPCOS (TDK Electronics). It features an inductance of 15mH and supports a maximum DC current of 20A. The component utilizes a ferrite core material and is designed for surface mount applications, providing robust performance for power filtering requirements.

Feature Summary

• High current handling capability suitable for demanding power circuits
• Ring core construction for efficient magnetic flux containment
• Ferrite core material optimized for high-frequency operation

Applications

• Power supply input filtering
• DC-DC converter stages
• Electromagnetic interference suppression

Procurement Notes

Verify the specific manufacturer datasheet to confirm exact electrical tolerances and thermal characteristics. Ensure compatibility with the intended PCB footprint and soldering profile. Cross-reference the full part number to distinguish between any potential suffix variations that may affect packaging or specific testing criteria.

Selection Notes

Select this component when high current capacity is required alongside significant inductance values. The 20A rating distinguishes it from lower-power SMD alternatives. Evaluate thermal management needs as high current flow generates heat within the ferrite structure during continuous operation.

Part Context

This component belongs to the B82746 series of fixed inductors. The series is characterized by its ring core geometry, which offers superior shielding compared to open-core designs. It serves as a critical passive element in modern electronic systems requiring stable current regulation.

Replacement Considerations

Consult official TDK/EPCOS substitution guides for verified equivalents. Generic replacements may not match the 20A saturation current or 15mH tolerance specifications.