FHD4020S-4R7MT
cjiang (Changjiang Microelectronics Tech)
Needs validationmedium risk
FHD4020S-4R7MT is a same-size family option if 4.7uH and lower current are acceptable.
Best Alternatives to FHD4020S-3R3MT
FHD4020S-3R3MT is a 3.3uH 4020 shielded power inductor. Listed alternatives need FAE review because current, inductance, or pinout evidence differs.
AI replacement insight
Electrical riskmedium
current ratings often lower
Package riskmedium
pinout not PDF-checked
Firmware risklow
passive part
Sourcing riskmedium
lifecycle sparse
Can it be replaced directly?
No confirmed pin-compatible replacement is proven by the provided fields.
Best replacement path
Check YNR4020-3R3M first for same 3.3uH only if lower current is acceptable.
Main risk
Most candidates have lower Isat/Irms or different inductance.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | FHD4020S-3R3MT | FHD4020S-4R7MT | YNR4020-3R3M | YHNR4020-4R7M | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4020 4x4x2 | 4020 4x4x2 | 4020 4x4x2 | 4020 4x4 | 4020 4x4x2 — same size; YNR4020-3R3M: same size shown; YHNR4020-4R7M: height in summary |
| Pinout | 2 pins | 2 pins | 2 pins | missing | 2 pins / missing — no pinout image; YNR4020-3R3M: pin count only; YHNR4020-4R7M: no pin count |
| Application | 3.3uH | 4.7uH | - | 4.7uH | 4.7uH — higher L; YHNR4020-4R7M: higher L |
| Current | 5.9A/4.0A | 4.9A/3.3A | 3.2A/1.4A | 4.0A/2.85A | 4.9A/3.3A / 3.2A/1.4A / 4.0A/2.85A — derated; YNR4020-3R3M: large derating; YHNR4020-4R7M: derated |
| Temperature | -40..125C | -40..125C | missing | - | -40..125C / missing — same range; YNR4020-3R3M: not in key row |
| Resistance | 73mΩ typ | - | 70mΩ typ | 95mΩ typ | 70mΩ typ / 95mΩ typ — similar DCR; YHNR4020-4R7M: higher DCR |
Application & sourcing insights
Questions & answers
YNR4020-3R3M is the closest by inductance and size, but it has much lower current ratings.