
Sunltech
Strong functional alternative with superior electricals, but in a larger package requiring board redesign.
Reviewing alternatives for the Sunlord MWSA0603S-150MT, a 15µH power inductor in a compact 0603 package. Key considerations for replacement are the significant package size differences and electrical performance trade-offs.
All candidates are in much larger packages (e.g., 0630 vs 0603), requiring a new PCB layout.
Most candidates offer superior current ratings and lower DCR, reducing electrical stress.
No, there are no pin-compatible, drop-in replacements for MWSA0603S-150MT in this catalog. All candidates with similar inductance have different, larger packages.
Select a functional alternative with superior electricals, like SLO0630H150MTT, and modify the PCB layout to accommodate its larger package.
The primary risk is the significant package size difference, making all reviewed alternatives physically incompatible without a board redesign.

Sunltech
Strong functional alternative with superior electricals, but in a larger package requiring board redesign.
| Feature / factor | MWSA0603S-150MT | SLO0630H150MTT | MWSA1004S-150MT | SMMS0630-150M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0630 | - | - | 0630 — Significantly larger package, requires PCB redesign. |
| Inductance | 15µH | 15µH | - | - | 15µH — matched |
| Saturation Current A | 3.2A | 5.0A | - | - | 4.5A — Higher saturation current provides more margin. |
| Dcr Ohm | 113mΩ | 97mΩ | - | - | 65mΩ — Significantly lower DCR improves efficiency. |
| Temperature | -40°C to +125°C | -55°C to +150°C | - | - | -55°C to +150°C — Wider operating temperature range. |
| Current A | 2.3A | - | - | 3.1A | — |
Candidates like Sunltech's SLO0630H150MTT offer superior current handling and lower resistance. However, it is in a much larger package, so the best choice depends on available board space and requires a PCB redesign.