
Sunltech
Strong electrical match with a very similar package; verify footprint before use.
Find and compare alternatives for the Sunlord MWSA1004S-6R8MT, a 6.8µH shielded power inductor. This guide analyzes potential substitutes based on electrical performance and package compatibility.
No candidate is a confirmed drop-in. The best option has a very similar but not identical footprint.
Several candidates offer superior electrical performance. Downgrade options exist but carry risk.
No guaranteed drop-in, pin-to-pin replacement has been identified. The closest candidate, SLO1040H6R8MTT, requires footprint verification. Other alternatives require a PCB redesign.
SLO1040H6R8MTT is the strongest candidate due to its closely matched electrical parameters and very similar package size. However, PCB footprint verification is essential.
The primary risk is physical incompatibility. Most alternatives have different package sizes, requiring PCB layout changes. For downgrades, electrical stress is also a risk.

Sunltech
Strong electrical match with a very similar package; verify footprint before use.
| Feature / factor | MWSA1004S-6R8MT | SLO1040H6R8MTT | SMMS1770-6R8M | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 6.8 µH | 6.8 µH | 6.8 µH | 6.8 µH — Inductance matches target.; SMMS1770-6R8M: Inductance matches target. | |
| Saturation Current | 9.6 A | 10.0 A | 32.0 A | 10.0 A / 32.0 A — Slightly higher saturation current provides more margin.; SMMS1770-6R8M: Significantly higher current rating. | |
| Rms Current | 7.0 A | 7.0 A | - | 7.0 A — RMS current rating matches target. | |
| Dcr | 25 mΩ | 22 mΩ | 8.4 mΩ | 22 mΩ / 8.4 mΩ — Lower DCR results in slightly less power loss.; SMMS1770-6R8M: Significantly lower DCR improves efficiency. | |
| Package | 1004 (10.0x11.5x4.8mm) | 1040 (10.8x10.0x4.0mm) | 1770 (17.5x17.15mm) | 1040 (10.8x10.0x4.0mm) / 1770 (17.5x17.15mm) — Package size is very similar but not identical. Footprint must be verified.; SMMS1770-6R8M: Package is much larger and requires PCB redesign. |
The best alternative identified is SLO1040H6R8MTT from Sunltech. It offers nearly identical electrical performance (6.8µH, 10A Isat, 7A Irms) in a very similar package size, but you must verify PCB footprint compatibility.