FAUL0630-4R7MT
cjiang (Changjiang Microelectronics Tech)
Needs validationhigh risk
AEC-Q200 qualified functional alternative with higher current ratings in a larger, non-compatible package.
Best Alternatives to YSMC0420V-4R7M
YSMC0420V-4R7M is a 4.7µH power inductor in a compact 4.0x4.0mm package. While no direct drop-in replacements are available, several functional alternatives offer superior electrical performance in larger packages, suitable for new designs or board revisions.
AI replacement insight
Package riskhigh
All candidates have a larger footprint (e.g., 6.6x7.0mm vs 4.0x4.0mm), requiring a board redesign.
Electrical risklow
Candidates offer improved current ratings and lower DCR, which is generally a safe upgrade.
Can it be replaced directly?
No, there is no verified direct, pin-compatible replacement for YSMC0420V-4R7M. All reviewed alternatives require a PCB layout change due to different package sizes.
Best replacement path
For new designs or board revisions, FAUL0630-4R7MT is a strong candidate, offering higher performance and AEC-Q200 automotive qualification.
Main risk
The primary risk is mechanical incompatibility. All potential substitutes have a larger physical footprint and cannot be used as drop-in replacements.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | YSMC0420V-4R7M | FAUL0630-4R7MT | FXL1050-4R7-M | FXL1350-4R7-M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4.0mm x 4.0mm | 6.6mm x 7.0mm | 10mm x 11.5mm | 13.45mm x 12.6mm | 6.6mm x 7.0mm / 10mm x 11.5mm / 13.45mm x 12.6mm — Candidate is larger and not a drop-in replacement.; FXL1050-4R7-M: Candidate is significantly larger and not a drop-in replacement.; FXL1350-4R7-M: Candidate is significantly larger and not a drop-in replacement. |
| Inductance | 4.7µH | 4.7µH | 4.7µH | 4.7µH | 4.7µH — Inductance value matches.; FXL1050-4R7-M: Inductance value matches.; FXL1350-4R7-M: Inductance value matches. |
| Saturation Current | 5.5A | 9.0A | 15.0A | 21.0A | 9.0A / 15.0A / 21.0A — Higher saturation current provides more margin.; FXL1050-4R7-M: Significantly higher saturation current provides more margin.; FXL1350-4R7-M: Significantly higher saturation current provides more margin. |
| Current | 4.0A | 6.0A | 11.0A | 13.0A | 6.0A / 11.0A / 13.0A — Higher heating current (Irms) rating.; FXL1050-4R7-M: Higher heating current (Irms) rating.; FXL1350-4R7-M: Higher heating current (Irms) rating. |
| Dcr | 52mΩ | 33mΩ | 14mΩ | 9mΩ | 33mΩ / 14mΩ / 9mΩ — Lower DCR improves efficiency.; FXL1050-4R7-M: Lower DCR improves efficiency.; FXL1350-4R7-M: Lower DCR improves efficiency. |
| Application | Commercial | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive qualified. |
Application & sourcing insights
Questions & answers
For new designs, FAUL0630-4R7MT is a strong functional alternative with higher current ratings and AEC-Q200 qualification. However, no direct drop-in replacement has been identified; all options require a PCB redesign.