
cjiang (Changjiang Microelectronics Tech)
A functional alternative with higher current ratings but a larger, non-compatible package.
FEXL0660A-4R7M is a 4.7µH molded power inductor in a compact 6.6mm x 6.4mm package, designed for high-current power supplies. Finding a replacement requires careful consideration of physical dimensions and electrical parameters.
All functional alternatives are physically larger and require a board redesign.
Most alternatives offer superior or similar electrical performance, but FXL0840-4R7-M has a higher DCR that needs evaluation.
Alternatives are from the same manufacturer, suggesting similar supply chain characteristics.
No, there are no direct, pin-compatible replacements for FEXL0660A-4R7M among the candidates reviewed. All viable alternatives have different package sizes.
No drop-in replacement was found. The best path is a board redesign using a functional alternative like FXL1050-4R7-M, which offers superior current ratings in a larger package.
The primary risk is the physical package mismatch. All functional alternatives require a new PCB layout to accommodate their larger footprints.

cjiang (Changjiang Microelectronics Tech)
A functional alternative with higher current ratings but a larger, non-compatible package.
| Feature / factor | FEXL0660A-4R7M | FXL1050-4R7-M | FXL1350-4R7-M | FXL0840-4R7-M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMD, 6.6mm x 6.4mm | 10x11.5mm | SMD, 13.45mm x 12.6mm | SMD, 8.8x8.2mm | 10x11.5mm / SMD, 13.45mm x 12.6mm / SMD, 8.8x8.2mm — Candidate is larger, requires board redesign.; FXL1350-4R7-M: Candidate is significantly larger, requires board redesign.; FXL0840-4R7-M: Candidate is larger, requires board redesign. |
| Inductance H | 4.7µH | 4.7µH | 4.7µH | 4.7µH | 4.7µH — matched; FXL1350-4R7-M: matched; FXL0840-4R7-M: matched |
| Current A | 8.5A | 11.0A | 13.0A | 9.5A | 11.0A / 13.0A / 9.5A — Higher current rating offers more thermal margin.; FXL1350-4R7-M: Higher current rating offers more thermal margin.; FXL0840-4R7-M: Slightly higher current rating. |
| Saturation Current A | 10.5A | 15.0A | 21.0A | - | 15.0A / 21.0A — Higher saturation current.; FXL1350-4R7-M: Higher saturation current prevents inductance drop at peak loads. |
| Dcr Ohm | 14.4mΩ | 14.0mΩ | 9.0mΩ | 26.5mΩ | 14.0mΩ / 9.0mΩ / 26.5mΩ — DCR is nearly identical.; FXL1350-4R7-M: Lower DCR improves efficiency.; FXL0840-4R7-M: Significantly higher DCR will increase power loss and heat. |
No direct drop-in replacement was found. The best functional alternative is FXL1050-4R7-M, which offers an upgrade in current handling, but it requires a board redesign due to its larger package (10x11.5mm vs 6.6x6.4mm).