
Functional alternative with superior current ratings and lower DCR, but in a much larger package.
Finding a replacement for the TDK VLS6045EX-220M 22µH inductor requires careful attention to package size. While several functional alternatives exist with superior current ratings, none are a direct drop-in replacement, necessitating a PCB layout change.
All candidates have different, mostly larger, footprints requiring PCB redesign.
Most candidates are electrical upgrades. Some have higher DCR, which needs review for efficiency impact.
No, a direct drop-in replacement for VLS6045EX-220M is not available among the candidates reviewed. All options require PCB redesign.
Search for 22µH inductors in a 6045 (6.0x6.0mm) package with Isat ≥ 2.4A and DCR ≤ 105mΩ.
The main risk is the package mismatch. All functional alternatives have different footprints, making them physically incompatible without board layout changes.

Functional alternative with superior current ratings and lower DCR, but in a much larger package.
| Feature / factor | VLS6045EX-220M | PSPMAA1040H-220M-ANP | FCH0630-220M | MHCI06030-220M-R8 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 6045 (6.0x6.0mm) | 1040 (11.5x10.0mm) | SMD (7.0x6.6mm) | 06030 (6.6x7.3mm) | 1040 (11.5x10.0mm) / SMD (7.0x6.6mm) / 06030 (6.6x7.3mm) / 1040 (10.3x10.0mm) — Candidate is significantly larger and not a drop-in replacement.; FCH0630-220M: Different footprint requires PCB layout verification and likely modification.; MHCI06030-220M-R8: Different footprint requires PCB layout verification and likely modification.; SMMS1040-220M: Larger package, not a drop-in replacement. |
| Saturation Current A | 2.4A | 7.0A | 3.2A | 3.2A | 7.0A / 3.2A / 6.0A — Significantly higher saturation current provides more headroom.; FCH0630-220M: Higher saturation current.; MHCI06030-220M-R8: Higher saturation current.; SMMS1040-220M: Higher saturation current. |
| Current A | 1.9A | 4.5A | 3.0A | 3.0A | 4.5A / 3.0A / 4.0A — Higher RMS current rating allows for use in higher power applications.; FCH0630-220M: Higher RMS current rating.; MHCI06030-220M-R8: Higher RMS current rating.; SMMS1040-220M: Higher RMS current rating. |
| Dcr Ohm | 105mΩ | 90mΩ | 125mΩ typ | 145mΩ max | 90mΩ / 125mΩ typ / 145mΩ max / 60mΩ — Lower DCR improves efficiency.; FCH0630-220M: Higher DCR may reduce efficiency.; MHCI06030-220M-R8: Higher DCR may reduce efficiency.; SMMS1040-220M: Lower DCR for better efficiency. |
No direct drop-in replacement has been identified. Alternatives like the Chilisin MHCI06030-220M-R8 offer higher current ratings but have a different footprint and higher DCR. A full engineering review is required.