
A functional alternative with superior current ratings and lower DCR, but in a different, larger package.
IHLP2020CZER3R3M01 is a 3.3µH high-current power inductor in a compact 2020 package. Finding a direct replacement is challenging, as most alternatives with similar or better electrical specs come in larger packages.
All candidates have a different, larger footprint than the target's 2020 package.
All candidates offer superior or equivalent electrical performance (higher current, lower DCR).
Candidates are from different manufacturers, which may have different supply chain characteristics.
No, there are no direct, pin-compatible replacements for IHLP2020CZER3R3M01 among the candidates reviewed. All alternatives have different package sizes and require a PCB layout change.
For new designs or board revisions, parts like SMMS0630-3R3M offer superior electrical performance in a slightly larger package. No drop-in replacement was found.
The primary risk is the package mismatch. All potential substitutes are physically larger and will not fit on the existing PCB footprint, necessitating a board redesign.

A functional alternative with superior current ratings and lower DCR, but in a different, larger package.
| Feature / factor | IHLP2020CZER3R3M01 | SMMS0630-3R3M | SMMS0650-3R3M | SMMS1770-3R3M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2020 (5.1x5.1mm) | 0630 (7.0x6.6mm) | 0650 (7.1x6.6mm) | 1770 (18.5x17.5mm) | 0630 (7.0x6.6mm) / 0650 (7.1x6.6mm) / 1770 (18.5x17.5mm) / 1004 (10.0x11.5mm) — Requires PCB redesign.; SMMS0650-3R3M: Requires PCB redesign.; SMMS1770-3R3M: Significantly larger package requires PCB redesign.; MWSA1004S-3R3MT: Significantly larger package requires PCB redesign. |
| Inductance H | 3.3 µH | 3.3 µH | - | - | 3.3 µH — matched |
| Saturation Current A | 8.5 A | 9.5 A | 9.0 A | 54.0 A | 9.5 A / 9.0 A / 54.0 A / 16.0 A — Higher saturation current provides more margin.; SMMS0650-3R3M: Slightly higher saturation current.; SMMS1770-3R3M: Vastly superior saturation current.; MWSA1004S-3R3MT: Significantly higher saturation current. |
| Current A | 5.0 A | 7.0 A | - | - | 7.0 A — Higher RMS current rating. |
| Dcr Ohm | 52.1 mΩ | 24.5 mΩ | 20 mΩ | 3.68 mΩ | 24.5 mΩ / 20 mΩ / 3.68 mΩ / 16.0 mΩ — Lower DCR improves efficiency.; SMMS0650-3R3M: Lower DCR improves efficiency.; SMMS1770-3R3M: Significantly lower DCR improves efficiency.; MWSA1004S-3R3MT: Significantly lower DCR improves efficiency. |
| Temperature | -55°C to +125°C | -40°C to +125°C | - | -55°C to +125°C | -40°C to +125°C / -55°C to +125°C — Reduced lower operating temperature.; SMMS1770-3R3M: matched |
The best alternative depends on your design constraints. If a board redesign is possible, SMMS0630-3R3M offers a strong electrical upgrade in a package that is only moderately larger. For maximum performance, SMMS1770-3R3M is excellent but significantly larger.