
cjiang (Changjiang Microelectronics Tech)
A strong alternative with a very similar package and higher current ratings. Land pattern and DCR impact should be reviewed.
FXL1050-100-M is a 10µH SMD power inductor for DC/DC converters. Alternatives exist with similar or better electricals, but package compatibility is the primary concern and requires verification.
Most candidates have different footprints requiring a PCB redesign.
Some candidates have lower saturation current, which must be checked against application loads.
Multiple alternatives are available from various manufacturers.
Direct replacement for FXL1050-100-M should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
FXC1040-100M is the most promising path, requiring only minor verification of its slightly different package dimensions and DCR.
The primary risk is physical incompatibility. Most alternatives have different package sizes, requiring a PCB layout change.

cjiang (Changjiang Microelectronics Tech)
A strong alternative with a very similar package and higher current ratings. Land pattern and DCR impact should be reviewed.
| Feature / factor | FXL1050-100-M | FXC1040-100M | FXL1350-100-M | XR1265-100M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 11.5x10.0mm | 11.5x10.3mm | 13.45x12.6mm | 13.45x12.6mm | 11.5x10.3mm / 13.45x12.6mm / 11x10mm — Very close match, verify land pattern; FXL1350-100-M: Larger footprint requires PCB redesign; XR1265-100M: Larger footprint requires PCB redesign; APH1040T100M: Close match, verify land pattern |
| Saturation Current A | 8.8A | 12.0A | 12.0A | 12.5A | 12.0A / 12.5A / 7.06A — Higher saturation current provides more margin; FXL1350-100-M: Significant upgrade; XR1265-100M: Significant upgrade; APH1040T100M: Significantly lower Isat poses high risk |
| Current A | 7.0A | 7.5A | 8.0A | 10.0A | 7.5A / 8.0A / 10.0A / 7.04A — Higher rated current; FXL1350-100-M: Higher rated current; XR1265-100M: Significant upgrade; APH1040T100M: Effectively identical rated current |
| Dcr Ohm | 28mΩ | 30mΩ | 22mΩ | 20.7mΩ | 30mΩ / 22mΩ / 20.7mΩ — Slightly higher DCR may increase losses; FXL1350-100-M: Lower DCR reduces power loss; XR1265-100M: Lower DCR reduces power loss; APH1040T100M: Slightly higher DCR |
Verified drop-in options for FXL1050-100-M 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.