BWVS004040121R0M00

Fixed Inductors Overview

The BWVS004040121R0M00 is a shielded surface-mount power inductor from Pulse Electronics, part of the BWVS series. It features a closed magnetic circuit design with a ferrite core to minimize electromagnetic interference. The component has a nominal inductance of 1.0 µH with a tolerance of ±20%. It is housed in a compact 4.0 mm x 4.0 mm x 1.2 mm package suitable for automated assembly. Key electrical specifications include a maximum DC resistance of 19 mΩ, a saturation current of 4.0 A, and a maximum RMS current rating of 3.5 A.

Fixed Inductors Feature Summary

• Shielded construction utilizing a closed magnetic circuit to contain flux and reduce EMI
• Ferrite core material provides stable inductance characteristics under load
• Surface-mount design optimized for high-volume automatic assembly processes

Fixed Inductors Applications

• DC-DC converter output filtering
• Point-of-load (POL) regulation circuits
• Power supply input chokes

Fixed Inductors Procurement Notes

Verify the specific suffix against official Pulse Electronics documentation to confirm exact electrical tolerances and packaging options. Ensure the procurement channel is an authorized distributor to guarantee component authenticity and traceability. Cross-reference the manufacturer part number with the alias LVS404012-1R0M-N if sourcing through alternative catalogs. Confirm RoHS compliance status via the latest datasheet revision before finalizing orders.

Fixed Inductors Selection Notes

Select this component when designing space-constrained power stages requiring high current handling in a small footprint. The 1.0 µH value and 4.0 A saturation current make it suitable for medium-power applications. Consider the 19 mΩ DC resistance for efficiency calculations in low-voltage outputs. The shielded type is preferred where electromagnetic compatibility is critical. Evaluate thermal performance based on the 3.5 A RMS rating relative to the PCB copper area.

Fixed Inductors Part Context

This part belongs to the BWVS series of power inductors manufactured by Pulse Electronics. The series is characterized by its use of Chilisin Power technology for closed magnetic circuit types. These components are designed specifically for surface-mount applications in modern electronics. The series offers various inductance values and current ratings within standardized package sizes to facilitate design flexibility across different power management architectures.

Fixed Inductors Replacement Considerations

The documented alias for this component is LVS404012-1R0M-N. Verify mechanical dimensions and pinout compatibility before substituting with other manufacturers' parts. Ensure that any replacement meets the same saturation current and DC resistance requirements to maintain circuit stability.