MWSA1004S-220MT
Sunlord
Needs validationhigh risk
A very high-current functional alternative with excellent electrical specs but in a vastly larger package.
Best Alternatives to SWPA3015S220MT
SWPA3015S220MT is a compact 22µH power inductor from Sunlord. While no direct pin-compatible replacements are identified, several functional alternatives with higher current ratings are available in larger packages, requiring board layout modifications for use.
AI replacement insight
Package riskhigh
No alternatives fit the 3.0x3.0x1.5mm footprint. A board spin is required.
Electrical risklow
All candidates offer superior current ratings and lower DCR, reducing electrical stress.
Can it be replaced directly?
No, there are no direct, pin-compatible replacements for the SWPA3015S220MT. All reviewed alternatives are in different physical packages and are not drop-in compatible.
Best replacement path
Upgrading to a larger inductor like Sunlord's SWPA4030S220MT offers higher current handling and better efficiency, but requires a PCB redesign to accommodate the larger 4x4mm package.
Main risk
The primary risk is mechanical incompatibility. All potential alternatives are physically larger than the target's 3x3x1.5mm package and will not fit the existing PCB footprint.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | SWPA3015S220MT | MWSA1004S-220MT | SLO0630H220MTT | SMMS0420-220M | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 22 µH | 22 µH | 22 µH | 22 µH | 22 µH — Inductance value matches the target.; SLO0630H220MTT: Inductance value matches the target.; SMMS0420-220M: Inductance value matches the target.; SMMS0630-220M: Inductance value matches the target. |
| Saturation Current | 0.56 A | 5.5 A | 3.2 A | 1.5 A | 5.5 A / 3.2 A / 1.5 A / 3.5 A — Significantly higher saturation current.; SLO0630H220MTT: Significantly higher saturation current.; SMMS0420-220M: Higher saturation current.; SMMS0630-220M: Significantly higher saturation current. |
| Dcr | 0.598 Ω | 0.066 Ω | 0.139 Ω | 0.45 Ω | 0.066 Ω / 0.139 Ω / 0.45 Ω / 0.126 Ω — Much lower DCR improves efficiency.; SLO0630H220MTT: Much lower DCR improves efficiency.; SMMS0420-220M: Lower DCR improves efficiency.; SMMS0630-220M: Much lower DCR improves efficiency. |
| Package | 3015 (3x3x1.5mm) | 1004 (~10x11.5x4mm) | 0630 (~7x7x3mm) | 4.6x4.2x2.0mm | 1004 (~10x11.5x4mm) / 0630 (~7x7x3mm) / 4.6x4.2x2.0mm — Vastly larger package; not a drop-in replacement.; SLO0630H220MTT: Much larger footprint; not a drop-in replacement.; SMMS0420-220M: Larger footprint and height; not a drop-in replacement.; SMMS0630-220M: Much larger footprint; not a drop-in replacement. |
Application & sourcing insights
Questions & answers
The best alternative depends on your design constraints. If you can redesign the PCB, Sunlord's SWPA4030S220MT is a good option from the same manufacturer with higher current ratings (1.3A Isat) in a slightly larger 4x4mm package. For even higher performance, consider parts like the SMMS0650-220M, but they are significantly larger.