Best Alternatives to FNR6045S6R8MT

Package: 6045Shenzhen CJiang Technology Co., Ltd.ChokesInductance: 6.8 µHTolerance: ±20%Saturation Current (Isat): 4.3 AHeat Rating Current (Irms): 3.3 ADC Resistance (DCR): 40 mΩ

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.

AI replacement insight

Electrical riskhigh

Lower current ratings on some alternatives can cause saturation or overheating.

Package riskmedium

Some alternatives have a different footprint, requiring PCB redesign.

Can it be replaced directly?

No direct drop-in replacement has been identified. PRS6045-6R8MT is form-factor compatible but has lower current ratings, posing a performance risk.

Best replacement path

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.

Main risk

The primary risk is either mechanical (different footprint) or electrical (lower current handling capacity), depending on the chosen alternative.

Recommended alternatives

2
PRS6045-6R8MT package
PRS6045-6R8MT

FH (Guangdong Fenghua Advanced Tech)

Needs validationhigh risk

A form-fit match, but lower current ratings require careful circuit validation.

View details

Alternative comparison matrix

Feature / factorFNR6045S6R8MTPRS6045-6R8MTYSPI0730-6R8MAlt 3Compatibility / risk
Package6.0mm x 6.0mm6.0mm x 6.0mm7.3mm x 6.6mm6.0mm x 6.0mm / 7.3mm x 6.6mm — Package size matches, likely a drop-in fit.; YSPI0730-6R8M: Candidate is larger, requires layout change.
Inductance6.8uH6.8uH6.8uH6.8uH — matched; YSPI0730-6R8M: matched
Current4.3A3.8A7.0A3.8A / 7.0A — Saturation current (Isat) is lower.; YSPI0730-6R8M: Saturation current (Isat) is higher.
Resistance40mΩ38mΩ60mΩ max38mΩ / 60mΩ max — DCR is slightly better.; YSPI0730-6R8M: Max DCR is higher, may increase losses.

Application & sourcing insights

Questions & answers

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.