MWSA1004S-3R3MT
Sunlord
Needs validationhigh risk
Functional alternative with much higher current ratings and lower DCR, but in a very large package requiring board redesign.
Best Alternatives to VLS3012HBX-3R3M
VLS3012HBX-3R3M is a compact 3.3µH power inductor. While no direct pin-compatible replacements are readily available, several functional alternatives exist with superior electrical performance but require a larger board footprint.
AI replacement insight
Package riskhigh
All alternatives are much larger than the 3x3mm target, requiring a board redesign.
Electrical risklow
Most candidates offer superior current ratings and lower DCR, but some have missing data or wider tolerance.
Can it be replaced directly?
No direct, pin-compatible replacement for the VLS3012HBX-3R3M has been identified. All suitable alternatives are in larger packages, requiring board layout changes.
Best replacement path
For new designs or board revisions, candidates like TDK's VLS5045EX-3R3N or Sunlord's SWPA4020S3R3MT offer better electrical performance in slightly larger packages.
Main risk
The primary risk is the physical package mismatch. The target's 3x3mm footprint is very small, and all alternatives are significantly larger, necessitating a PCB redesign.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | VLS3012HBX-3R3M | MWSA1004S-3R3MT | PSPMAA1040H-3R3M-ANP | SPM6530T-3R3M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3.0mm x 3.0mm | 10.0mm x 11.5mm | 10.2mm x 11.0mm | 7.1mm x 6.5mm | 10.0mm x 11.5mm / 10.2mm x 11.0mm / 7.1mm x 6.5mm / 4.0mm x 4.0mm — Significantly larger, not a drop-in replacement.; PSPMAA1040H-3R3M-ANP: Significantly larger, not a drop-in replacement.; SPM6530T-3R3M: Significantly larger, not a drop-in replacement.; SWPA4018S3R3MT: Larger package, not a drop-in replacement. |
| Saturation Current A | 2.82A | 16.0A | 16.0A | 7.3A | 16.0A / 7.3A / 2.9A — Greatly exceeds target's rating.; PSPMAA1040H-3R3M-ANP: Greatly exceeds target's rating.; SPM6530T-3R3M: Much higher saturation current.; SWPA4018S3R3MT: Marginally higher saturation current. |
| Current A | 2.37A | 7.96A | 10.0A | 6.8A | 7.96A / 10.0A / 6.8A / missing — Much higher thermal current handling.; PSPMAA1040H-3R3M-ANP: Much higher thermal current handling.; SPM6530T-3R3M: Much higher thermal current rating.; SWPA4018S3R3MT: Thermal current (Irms/Itemp) rating is missing. |
| Dcr Ohm | 150mΩ | 16.0mΩ | 12.0mΩ | 29.7mΩ | 16.0mΩ / 12.0mΩ / 29.7mΩ / 91mΩ — Significantly lower DCR improves efficiency.; PSPMAA1040H-3R3M-ANP: Significantly lower DCR improves efficiency.; SPM6530T-3R3M: Significantly lower DCR.; SWPA4018S3R3MT: Lower DCR improves efficiency. |
Application & sourcing insights
Questions & answers
The best alternative depends on space constraints. Electrically, parts like PROD's PSPMAA1040H-3R3M are much stronger, but are also much larger. For a balance, TDK's VLS5045EX-3R3N is a good option if a 5x5mm footprint is acceptable.