
Pin-compatible package but has a lower heat rating current, requiring engineering review.
Finding a substitute for the SLO0630H220MTT 22µH power inductor involves balancing electrical performance with physical package compatibility. While several alternatives offer superior current ratings, they often require PCB layout changes.
Many alternatives have different footprints or heights, requiring layout changes or mechanical checks.
Pin-compatible options may have a lower heat rating current (Irms), risking thermal issues.
Direct replacement for SLO0630H220MTT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most direct path is SMMS0630-220M, but it carries a thermal downgrade risk. For an upgrade, consider larger parts like SLO1040H220MTT, but be prepared for a board respin.
The primary risk is balancing physical compatibility with electrical performance. Pin-compatible options may have electrical downgrades, while electrical upgrades require different packages.

Pin-compatible package but has a lower heat rating current, requiring engineering review.
| Feature / factor | SLO0630H220MTT | SMMS0630-220M | MWSA1004S-220MT | SLO1040H220MTT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 7.1x6.6x3.0mm | 7.1x6.6x3.0mm | 10.0x11.5x4.0mm | 1040 Body | 7.1x6.6x3.0mm / 10.0x11.5x4.0mm / 1040 Body / 7.4x6.8x5.0mm — Identical package and land pattern.; MWSA1004S-220MT: Significantly larger package, requires layout change.; SLO1040H220MTT: Significantly larger package, requires layout change.; SMMS0650-220M: Significantly taller (5.0mm vs 3.0mm). |
| Current | 3.2 A | 3.5 A | 5.5 A | 5.5 A | 3.5 A / 5.5 A / 4.0 A — Saturation current (Isat) is higher.; MWSA1004S-220MT: Saturation current is higher.; SLO1040H220MTT: Saturation current is higher.; SMMS0650-220M: Saturation current is higher. |
| Resistance | 139 mΩ | 126 mΩ | 66 mΩ | 51 mΩ | 126 mΩ / 66 mΩ / 51 mΩ / 125 mΩ — Typical DCR is slightly lower (better).; MWSA1004S-220MT: Max DCR is significantly lower (better).; SLO1040H220MTT: DCR is significantly lower (better).; SMMS0650-220M: Typical DCR is slightly lower (better). |
Verified drop-in options for SLO0630H220MTT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.