
Sunltech
A strong form-fit alternative with higher saturation current but slightly lower heat rating.
Find and compare replacements for the SXN SMMS0630-150M, a 15µH shielded power inductor. This guide analyzes top alternatives, focusing on electrical performance and package compatibility.
Several candidates offer superior electrical specs, but downgrades exist and must be avoided.
Many functional alternates are in taller packages (e.g., 5mm vs 3mm), requiring mechanical clearance checks.
SLO0630H150MTT is a potential form-fit replacement for SMMS0630-150M, offering a matching package and higher saturation current. However, its slightly lower heat rating current (3.0A vs 3.1A) must be verified for your application's thermal requirements.
The best path is SLO0630H150MTT, which matches the package and key electricals, but requires review of its slightly lower heat rating current (Irms).
The main risks are either mechanical incompatibility from taller packages or electrical risk from lower current ratings in form-fit parts.

Sunltech
A strong form-fit alternative with higher saturation current but slightly lower heat rating.
| Feature / factor | SMMS0630-150M | SLO0630H150MTT | SMMS0650-150M | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0630 | 0630 | 0650 (5.0mm height) | 0630 / 0650 (5.0mm height) — Same package code. Dimensions should be verified.; SMMS0650-150M: Significantly taller package (5.0mm vs 3.0mm). | |
| Inductance | 15µH | 15µH | 15µH | 15µH — Inductance matches.; SMMS0650-150M: Inductance matches. | |
| Saturation Current | 4.5A | 5.0A | 5.0A | 5.0A — Higher saturation current provides more margin.; SMMS0650-150M: Higher saturation current. | |
| Heat Rating Current | 3.1A | 3.0A | 3.5A | 3.0A / 3.5A — Slightly lower, may impact thermal performance.; SMMS0650-150M: Higher heat rating current. | |
| Dcr | 115mΩ Max | 115mΩ Max | 77mΩ Max | 115mΩ Max / 77mΩ Max — Max DCR matches, typical is lower (97mΩ).; SMMS0650-150M: Lower DCR improves efficiency. |
The best alternative is likely Sunltech's SLO0630H150MTT. It matches the 0630 package, 15µH inductance, and has a higher saturation current (5.0A). However, you must verify if its slightly lower heat rating current (3.0A vs 3.1A) is acceptable for your design.