
Sunlord
An electrical upgrade with higher current ratings, but its larger 5020 package requires a PCB redesign.
Finding a substitute for the MAI3015S-100MT, a 10µH SMD power inductor, involves balancing package size with electrical performance. Alternatives often require a trade-off between footprint compatibility and current rating.
Many alternatives are not in the same 3015 package.
Some same-package options have lower current ratings.
No direct, verified pin-to-pin replacement has been identified. The closest candidates have different packages or lower electrical ratings, requiring engineering review.
For a drop-in replacement, verify the footprint of parts in similar packages like 3225. For higher performance, a board redesign may be needed for larger inductors.
The primary risk is physical incompatibility due to different package sizes. A secondary risk is selecting a part with lower current ratings, which could lead to overheating or failure.

Sunlord
An electrical upgrade with higher current ratings, but its larger 5020 package requires a PCB redesign.
| Feature / factor | MAI3015S-100MT | SWPA5020S100MT | TFM322512ALMA100MTAA | PSPNAQ3015-100M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3015 (3.0x3.0mm) | 5020 (5.0x5.0mm) | 3225 (3.2x2.5mm) | 3015 | 5020 (5.0x5.0mm) / 3225 (3.2x2.5mm) / 3015 — Significantly larger package, requires board redesign.; TFM322512ALMA100MTAA: Different footprint, not a drop-in fit.; PSPNAQ3015-100M: Same package dimensions (3.0x3.0x1.5mm). |
| Current | 1.1A | 1.55A | 1.2A | 0.9A | 1.55A / 1.2A / 0.9A — Higher rated current.; TFM322512ALMA100MTAA: Rated current (Itemp) is slightly higher.; PSPNAQ3015-100M: Rated current (Irms) is lower than target. |
| Saturation Current | 1.6A | 1.7A | 1.6A | 0.92A | 1.7A / 1.6A / 0.92A — Higher saturation current.; TFM322512ALMA100MTAA: Saturation current matches target.; PSPNAQ3015-100M: Saturation current (Isat) is significantly lower. |
| Dcr | 0.45Ω | - | 0.36Ω | 0.32Ω | 0.36Ω / 0.32Ω — Lower DCR improves efficiency.; PSPNAQ3015-100M: Lower DCR improves efficiency. |
The best alternative depends on your priority. TFM322512ALMA100MTAA offers similar electricals in a slightly different package. For higher current, parts like SWPA5020S100MT are available but require a larger PCB footprint.