
Strong electrical alternative with higher saturation current and lower DCR, but requires board redesign due to package differences.
FSA0650-470MT is a 47µH shielded power inductor for high-efficiency power supplies. Finding a direct drop-in replacement requires matching its FSA0650 package and electrical specifications.
All candidates have different footprints, requiring a board spin.
Candidates offer improved current ratings and lower DCR, but performance should be verified in-circuit.
There are no direct, pin-compatible replacements for FSA0650-470MT among the candidates reviewed. All alternatives require a board layout change due to different package footprints.
For new designs or board revisions, candidates like SMMS0850-470M offer superior current handling and lower DCR. No direct drop-in path exists.
Physical incompatibility is the main risk; all reviewed alternatives have different package dimensions, requiring a PCB redesign.

Strong electrical alternative with higher saturation current and lower DCR, but requires board redesign due to package differences.
| Feature / factor | FSA0650-470MT | SMMS0850-470M | MDA1365-470M | PSPHAQ127-470M | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 47 µH | 47 µH | 47 µH | 47 µH | 47 µH — Inductance matches target.; MDA1365-470M: Inductance matches target.; PSPHAQ127-470M: Inductance matches target.; SMMS1050-470M: Inductance matches target. |
| Saturation Current A | 2.6 A | 4.0 A | 7.6 A | 3.2 A | 4.0 A / 7.6 A / 3.2 A / 4.5 A — Higher saturation current.; MDA1365-470M: Significantly higher saturation current.; PSPHAQ127-470M: Higher saturation current.; SMMS1050-470M: Higher saturation current. |
| Dcr Ohm | 0.23 Ω | 0.19 Ω | 0.058 Ω | 0.1 Ω | 0.19 Ω / 0.058 Ω / 0.1 Ω / 0.11 Ω — Lower DCR improves efficiency.; MDA1365-470M: Significantly lower DCR improves efficiency.; PSPHAQ127-470M: Lower DCR improves efficiency.; SMMS1050-470M: Lower DCR improves efficiency. |
| Temp Rise Current A | 2.0 A | 2.0 A | 8.0 A | 3.2 A | 2.0 A / 8.0 A / 3.2 A / 3.0 A — Heat rating current matches target.; MDA1365-470M: Higher heat rating current.; PSPHAQ127-470M: Higher heat rating current.; SMMS1050-470M: Higher heat rating current. |
| Package | FSA0650 | 0850 | 1365 | SMD, 12x12mm | 0850 / 1365 / SMD, 12x12mm / 1050 (11.5x10.2mm) — Package is larger and not compatible.; MDA1365-470M: Package is larger and not compatible.; PSPHAQ127-470M: Package is much larger and not compatible.; SMMS1050-470M: Package is larger and not compatible. |
While no direct drop-in replacement was found, SMMS0850-470M is a strong candidate for a board redesign. It offers higher saturation current (4A vs 2.6A) and lower resistance (190mΩ vs 230mΩ) in a relatively compact package, though still different from the original.