
FH (Guangdong Fenghua Advanced Tech)
A form-fit match, but lower current ratings require careful circuit validation.
Finding a replacement for the FNR6045S6R8MT 6.8µH power inductor requires matching the 6045 package, 40mΩ DCR, and current ratings. Alternatives exist with package or current rating differences.
Lower current ratings on some alternatives can cause saturation or overheating.
Some alternatives have a different footprint, requiring PCB redesign.
No direct drop-in replacement has been identified. PRS6045-6R8MT is form-factor compatible but has lower current ratings, posing a performance risk.
PRS6045-6R8MT offers the same package but with a lower current rating, requiring circuit validation. YSPI0730-6R8M is electrically superior but requires a larger PCB footprint.
The primary risk is either mechanical (different footprint) or electrical (lower current handling capacity), depending on the chosen alternative.

FH (Guangdong Fenghua Advanced Tech)
A form-fit match, but lower current ratings require careful circuit validation.
| Feature / factor | FNR6045S6R8MT | PRS6045-6R8MT | YSPI0730-6R8M | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 6.0mm x 6.0mm | 6.0mm x 6.0mm | 7.3mm x 6.6mm | 6.0mm x 6.0mm / 7.3mm x 6.6mm — Package size matches, likely a drop-in fit.; YSPI0730-6R8M: Candidate is larger, requires layout change. | |
| Inductance | 6.8uH | 6.8uH | 6.8uH | 6.8uH — matched; YSPI0730-6R8M: matched | |
| Current | 4.3A | 3.8A | 7.0A | 3.8A / 7.0A — Saturation current (Isat) is lower.; YSPI0730-6R8M: Saturation current (Isat) is higher. | |
| Resistance | 40mΩ | 38mΩ | 60mΩ max | 38mΩ / 60mΩ max — DCR is slightly better.; YSPI0730-6R8M: Max DCR is higher, may increase losses. |
PRS6045-6R8MT is a close match but has a lower current rating. YSPI0730-6R8M is electrically stronger but has a larger package. The best choice depends on your design constraints.