CYA0630-4.7UH
SHOU HAN
Needs validationmedium risk
A functional alternative with superior current ratings and lower DCR, but in a larger package.
Best Alternatives to WPN4020H4R7MT
Finding a substitute for the Sunlord WPN4020H4R7MT, a 4.7µH power inductor, requires careful review. Key challenges are matching the 4020 package while meeting the 4.9A saturation current, with most alternatives involving design trade-offs.
AI replacement insight
Package riskhigh
Most alternatives are in larger packages (6045/0630) and are not drop-in replacements.
Electrical riskhigh
The only form-fit alternative has significantly lower current ratings, risking saturation or overheating.
Can it be replaced directly?
No direct, drop-in replacement with equivalent or better performance has been identified. One part with a matching footprint, SMNR4020-4R7MT, is a high-risk electrical downgrade.
Best replacement path
For new designs or board revisions, use a functional alternative like SLO0630H4R7MTT for superior electrical performance, provided the larger footprint is acceptable.
Main risk
The primary risk is package incompatibility. Electrically suitable parts are physically larger. The only part with a matching footprint is electrically inferior.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | WPN4020H4R7MT | CYA0630-4.7UH | SLO0630H4R7MTT | SMMS0630-4R7M | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 4.7 µH | 4.7 µH | 4.7 µH | 4.7 µH | 4.7 µH — Inductance matches target.; SLO0630H4R7MTT: Inductance matches target.; SMMS0630-4R7M: Inductance matches target.; SWPA6045S4R7MT: Inductance matches target. |
| Package | 4020 (4.0x4.0mm) | 0630 (7.2x6.6mm) | 0630 (7.1x6.6mm) | 0630 (7.1x6.6mm) | 0630 (7.2x6.6mm) / 0630 (7.1x6.6mm) / 6045 (6.0x6.0mm) — Significantly larger than target, requires board redesign.; SLO0630H4R7MTT: Significantly larger than target, requires board redesign.; SMMS0630-4R7M: Significantly larger than target, requires board redesign.; SWPA6045S4R7MT: Larger than target, requires board redesign. |
| Current | 4.9A / 3.3A | 6.5A / 5.0A | 9.0A / 5.5A | 6.55A / 6.0A | 6.5A / 5.0A / 9.0A / 5.5A / 6.55A / 6.0A / 5.5A / 3.5A — Higher Isat/Irms offers more headroom.; SLO0630H4R7MTT: Higher Isat/Irms offers more headroom.; SMMS0630-4R7M: Higher Isat/Irms offers more headroom.; SWPA6045S4R7MT: Higher Isat/Irms offers more headroom. |
| Dcr | 0.225 Ω | 0.0345 Ω | 0.031 Ω | 0.035 Ω | 0.0345 Ω / 0.031 Ω / 0.035 Ω / 0.030 Ω — Lower DCR improves efficiency.; SLO0630H4R7MTT: Lower DCR improves efficiency.; SMMS0630-4R7M: Lower DCR improves efficiency.; SWPA6045S4R7MT: Lower DCR improves efficiency. |
Application & sourcing insights
Questions & answers
No direct drop-in replacement was found. The best path is to select a functional alternative with superior electricals, like SLO0630H4R7MTT, and redesign the PCB layout to accommodate its larger package.