
Shenzhen Sunlord Electronics Co., Ltd.
An alternative from the same series with much lower inductance, but significantly higher current ratings.
The Sunlord MWSA1004S-150MT is a 15µH molded power inductor. While no direct drop-in replacements have been identified, several functional alternatives exist within the same product family that offer different inductance values and current ratings in a compatible package.
Inductance value is different across all candidates, requiring circuit redesign.
Most candidates share the same footprint, with minor, acceptable height differences.
No, there are no direct, drop-in replacements for the MWSA1004S-150MT among the candidates reviewed. All alternatives have a different inductance value, which is a critical parameter.
No direct drop-in replacement was found. The best path is to select another part from the Sunlord MWSA1004S series with the required inductance for your application, such as MWSA1004S-6R8MT for a lower inductance or MWSA1004S-220MT for a higher one, and re-evaluate circuit performance.
The primary risk is inductance mismatch. Using an inductor with a different value will change the behavior of a power converter or filter, potentially leading to instability, incorrect output voltage, or component failure.

Shenzhen Sunlord Electronics Co., Ltd.
An alternative from the same series with much lower inductance, but significantly higher current ratings.
| Feature / factor | MWSA1004S-150MT | MWSA1004S-3R3MT | MWSA1004S-6R8MT | MWSA1004S-220MT | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 15 µH | 3.3 µH | 6.8 µH | 22 µH | 3.3 µH / 6.8 µH / 22 µH — Significantly lower inductance requires circuit redesign.; MWSA1004S-6R8MT: Significantly lower inductance requires circuit redesign.; MWSA1004S-220MT: Higher inductance will alter circuit performance. |
| Saturation Current A | 6.5 A | 16 A | 9.6 A | 5.5 A | 16 A / 9.6 A / 5.5 A — Much higher current rating provides more margin.; MWSA1004S-6R8MT: Higher current rating provides more margin.; MWSA1004S-220MT: Lower saturation current poses a high risk of core saturation. |
| Heat Rating Current A | 5.6 A | 7.96 A | 7.0 A | 4.2 A | 7.96 A / 7.0 A / 4.2 A — Higher thermal rating improves reliability.; MWSA1004S-6R8MT: Higher thermal rating improves reliability.; MWSA1004S-220MT: Lower thermal current rating poses overheating risk. |
| Dcr Ohm | 65 mΩ | 16 mΩ | 25 mΩ | 66 mΩ | 16 mΩ / 25 mΩ / 66 mΩ — Significantly lower DCR improves efficiency.; MWSA1004S-6R8MT: Significantly lower DCR improves efficiency.; MWSA1004S-220MT: Slightly higher DCR reduces efficiency. |
| Package | 10x11.5x4.8mm | 10x11.5x4.0mm | 10x11.5x4.8mm | 10x11.5x4.0mm | 10x11.5x4.0mm / 10x11.5x4.8mm — Slightly lower height, generally acceptable.; MWSA1004S-6R8MT: Package dimensions match.; MWSA1004S-220MT: Slightly lower height, generally acceptable. |
There is no direct drop-in alternative for the MWSA1004S-150MT. The best approach is to select a functional alternative from the same MWSA1004S series, like MWSA1004S-6R8MT or MWSA1004S-220MT, and verify its suitability for your specific circuit design.