FCH1050-470M
Fangcheng Electronics
Needs validationmedium risk
An electrically superior alternative with higher current and lower DCR, but requires a board redesign due to a different footprint.
Best Alternatives to SWPA8040S470MT
Finding a substitute for the Sunlord SWPA8040S470MT 47µH inductor involves a trade-off between physical compatibility and electrical performance. While several functional alternatives offer superior current handling and efficiency, they require a PCB redesign. Form-fit options may present performance downgrades.
AI replacement insight
Package riskhigh
Most alternatives have different packages, requiring PCB layout changes.
Electrical riskmedium
Form-fit options may have higher DCR or lower temperature ratings, impacting efficiency and reliability.
Sourcing risklow
47µH inductors in various packages are widely available from multiple manufacturers.
Can it be replaced directly?
No direct, fully-equivalent replacement was found. PNLS8040-470M has the same package but weaker performance, while other candidates are electrically superior but require a board redesign.
Best replacement path
For new designs, functional alternates like FCH1050-470M offer better performance. For existing boards, PNLS8040-470M is physically similar but requires careful validation of its performance downgrades.
Main risk
The primary risks are package incompatibility requiring a board redesign, or performance degradation (higher power loss, lower thermal headroom) if using a physically similar but electrically weaker part.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | SWPA8040S470MT | FCH1050-470M | FCH1365-470M | PSPHAQ127-470M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 8040 | 11.5 mm x 10.5 mm | 1365 | SMD, 12x12mm | 11.5 mm x 10.5 mm / 1365 / SMD, 12x12mm / 8040 — Larger package requires PCB redesign.; FCH1365-470M: Larger package requires PCB redesign.; PSPHAQ127-470M: Larger package requires PCB redesign.; PNLS8040-470M 47UH: Same package family, likely compatible footprint. |
| Inductance | 47µH | 47µH | 47µH | 47µH | 47µH — Inductance matches.; FCH1365-470M: Inductance matches.; PSPHAQ127-470M: Inductance matches.; PNLS8040-470M 47UH: Inductance matches. |
| Current A | 1.65A | 4.0A | 6.0A | 3.2A | 4.0A / 6.0A / 3.2A / Missing — Higher RMS current rating.; FCH1365-470M: Significantly higher RMS current rating.; PSPHAQ127-470M: Higher RMS current rating.; PNLS8040-470M 47UH: RMS current (Irms) is not specified. |
| Dcr Ohm | 113mΩ | 105mΩ | 63mΩ | 100mΩ | 105mΩ / 63mΩ / 100mΩ / 195mΩ — Lower DCR improves efficiency.; FCH1365-470M: Significantly lower DCR improves efficiency.; PSPHAQ127-470M: Lower DCR improves efficiency.; PNLS8040-470M 47UH: Higher DCR will increase power loss. |
| Saturation Current A | 1.75A | - | - | - | 1.75A — Saturation current matches. |
| Temperature | -40°C to +125°C | - | - | - | -40°C to +85°C — Reduced upper operating temperature limit. |
Application & sourcing insights
Questions & answers
No single 'best' alternative exists. For new designs not constrained by board space, FCH1050-470M is a strong choice with better current and DCR ratings. For existing designs, PNLS8040-470M is physically similar but requires careful review of its weaker DCR and temperature specs.