CYH127-220UH
hanxia
Needs validationhigh risk
High-performance alternative with much higher current and lower DCR, but in a much larger package.
Best Alternatives to SLF0504-221MTT
SLF0504-221MTT is a 220µH unshielded power inductor. Finding a direct replacement requires matching its specific SLF0504 package footprint and electrical characteristics.
AI replacement insight
Package riskhigh
Target package is non-standard; all candidates have different footprints.
Electrical risklow
Most candidates offer improved current handling and lower DCR.
Sourcing riskmedium
Target is a specific series; alternatives are from various manufacturers.
Can it be replaced directly?
No direct, drop-in replacement is confirmed due to the non-standard SLF0504 package. A layout modification is likely necessary.
Best replacement path
Functional alternatives with superior electrical specs are available, but all require PCB layout verification due to package differences.
Main risk
Package and footprint mismatch is the main risk, requiring datasheet review and possible PCB redesign.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | SLF0504-221MTT | CYH127-220UH | SWPA4030S221MT | CY75-220UH | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 220µH | 220µH | 220µH | 220µH | 220µH — Inductance matches target.; SWPA4030S221MT: Inductance matches target.; CY75-220UH: Inductance matches target.; CYH74-220UH: Inductance matches target. |
| Current | 0.35A | 1.16A | 0.5A | 0.48A | 1.16A / 0.5A / 0.48A / 0.47A — Significantly higher current rating.; SWPA4030S221MT: Higher current rating.; CY75-220UH: Higher current rating.; CYH74-220UH: Higher current rating. |
| Dcr | 1.57Ω | 0.299Ω | 1.26Ω | 0.793Ω | 0.299Ω / 1.26Ω / 0.793Ω / 1.24Ω — Significantly lower DCR.; SWPA4030S221MT: Lower DCR improves efficiency.; CY75-220UH: Lower DCR.; CYH74-220UH: Lower DCR. |
| Package | SLF0504 | 12.5x12.5mm | 4030 (4x4mm) | 7.8x7.0mm | 12.5x12.5mm / 4030 (4x4mm) / 7.8x7.0mm / SMD (7.4mm type) — Significantly larger package.; SWPA4030S221MT: Different package requires footprint verification.; CY75-220UH: Different package requires footprint verification.; CYH74-220UH: Different package requires footprint verification. |
Application & sourcing insights
Questions & answers
Several functional alternatives exist with similar inductance but better current handling and lower DCR, such as Sunlord's SWPA4030S221MT. However, all require careful review of the package dimensions as they are not direct drop-in replacements.