FXL1040-1R5-M
cjiang (Changjiang Microelectronics Tech)
Needs validationmedium risk
A functional alternative with superior current ratings but in a much larger package requiring a new layout.
Best Alternatives to FXL0518-1R5-M
FXL0518-1R5-M is a 1.5µH, 7.5A power inductor in a 5.4x5.2mm SMD package. Finding a direct drop-in replacement requires matching its low 1.8mm profile, inductance, and current ratings. Alternatives exist with better electrical specs but often in different package sizes.
AI replacement insight
Package riskhigh
Target's low 1.8mm height is hard to match; many alternatives are taller or have different footprints.
Electrical riskmedium
Some alternatives have lower saturation current (Isat), which requires circuit analysis to ensure stability.
Sourcing risklow
Many 1.5µH inductors are available, though finding a form-fit-function match is difficult.
Can it be replaced directly?
No verified direct drop-in replacement is available. Candidates with matching footprints are taller, and candidates with lower profiles have different electrical characteristics or footprints.
Best replacement path
Upgrade performance with a larger part like FEXL0630A-1R5M if board space allows, or consider the parametrically similar but taller FXL0530-1R5-M if Z-height is not constrained.
Main risk
The primary risk is physical incompatibility. The target's low 1.8mm profile is a key constraint, and most alternatives are taller or have a different footprint.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | FXL0518-1R5-M | FXL1040-1R5-M | FEXL0630A-1R5M | FEXL0420A-1R5M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 5.4x5.2mm | 11.5x10mm | 6.6x6.4mm | 4.1x4.1mm | 11.5x10mm / 6.6x6.4mm / 4.1x4.1mm / 5.4x5.2mm (3.0mm H) — Candidate is much larger and requires PCB redesign.; FEXL0630A-1R5M: Candidate is larger and requires PCB redesign.; FEXL0420A-1R5M: Candidate is smaller and requires PCB redesign.; FXL0530-1R5-M: Footprint matches, but is significantly taller (3.0mm vs 1.8mm). |
| Inductance H | 1.5µH | 1.5µH | 1.5µH | 1.5µH | 1.5µH — matched; FEXL0630A-1R5M: matched; FEXL0420A-1R5M: matched; FXL0530-1R5-M: matched |
| Current A | 7.5A | 16.0A | 15.0A | 7.6A | 16.0A / 15.0A / 7.6A / 8.2A — Higher current rating provides more thermal margin.; FEXL0630A-1R5M: Higher current rating provides more thermal margin.; FEXL0420A-1R5M: Rated current is comparable.; FXL0530-1R5-M: Slightly higher rated current. |
| Saturation Current A | 9.0A | 26.0A | 20.0A | 8.0A | 26.0A / 20.0A / 8.0A / 8.5A — Higher saturation current prevents inductance drop at high peaks.; FEXL0630A-1R5M: Higher saturation current prevents inductance drop at high peaks.; FEXL0420A-1R5M: Lower saturation current presents a performance risk.; FXL0530-1R5-M: Slightly lower saturation current may impact performance under peak loads. |
| Dcr Ohm | 26.0mΩ | 4.2mΩ | 9.1mΩ | - | 4.2mΩ / 9.1mΩ / 25.0mΩ — Lower DCR improves efficiency.; FEXL0630A-1R5M: Lower DCR improves efficiency.; FXL0530-1R5-M: Very similar DCR. |
Application & sourcing insights
Questions & answers
For performance upgrades, FXL1040-1R5-M offers higher current ratings but in a much larger package. For a closer form factor, FXL0530-1R5-M has the same footprint but is taller and has slightly lower saturation current. The best choice depends on your board space and circuit margin.