Needs validationlow risk
Strong alternative in the same 6045 package with higher saturation current and slightly higher DCR.
Best Alternatives to SMNR6045-680MT
Finding a replacement for the SMNR6045-680MT 68µH inductor involves balancing package size with electrical performance. Several alternatives exist, from form-fit matches to larger, higher-performance upgrades.
AI replacement insight
Electrical risklow
Several parts meet or exceed key electrical specs.
Package riskhigh
Only one candidate shares the same package; others are larger.
Can it be replaced directly?
Direct replacement for SMNR6045-680MT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
VLS6045EX-680M offers a similar form-fit with improved saturation current, requiring only verification of the footprint and tolerance for slightly higher DCR.
Main risk
The main risk is package incompatibility. Many functional alternatives require a PCB redesign due to different footprints.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | SMNR6045-680MT | VLS6045EX-680M | FCH1365-680M | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 6045 | 6045 (6.0 mm x 6.0 mm) | 13.7mm x 12.8mm | 6045 (6.0 mm x 6.0 mm) / 13.7mm x 12.8mm — Same package family, verify footprint.; FCH1365-680M: Much larger, requires board redesign. | |
| Inductance | 68 µH | 68 µH | 68 µH | 68 µH — matched; FCH1365-680M: matched | |
| Saturation Current | 1.2 A | 1.4 A | 5.5 A | 1.4 A / 5.5 A — Higher Isat provides more margin.; FCH1365-680M: Significantly higher performance. | |
| Temp Current | 1.0 A | 1.0 A | 4.5 A | 1.0 A / 4.5 A — matched; FCH1365-680M: Significantly higher performance. | |
| Dcr | 0.286 Ω | 0.31 Ω | 0.103 Ω | 0.31 Ω / 0.103 Ω — Slightly higher DCR increases losses.; FCH1365-680M: Significantly lower DCR reduces losses. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SMNR6045-680MT 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.