SWPA4030S2R2MT
Sunlord
Needs validationlow risk
A pin-compatible upgrade from the same series with tighter ±20% inductance tolerance.
Best Alternatives to SWPA4030S2R2NT
Sunlord's SWPA4030S2R2NT is a 2.2µH power inductor in a 4x4mm package. Several alternatives exist, including a direct pin-compatible upgrade from the same series that offers tighter performance.
AI replacement insight
Package risklow
SWPA4030S2R2MT uses the identical 4030 package, eliminating physical fitment risk.
Electrical riskmedium
The key unknown is the target's heat rating current (Irms). An otherwise suitable part could overheat if the replacement's Irms is lower than the original's (unspecified) value.
Can it be replaced directly?
Direct replacement for SWPA4030S2R2NT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The best alternative is SWPA4030S2R2MT, which is from the same series and offers a tighter ±20% tolerance in the same package.
Main risk
The primary risk is thermal performance, as the target part's heat rating current (Irms) is not specified in the provided data. This must be compared against the candidate's Irms and the application's needs.
Recommended alternatives
1Alternative comparison matrix
| Feature / factor | SWPA4030S2R2NT | SWPA4030S2R2MT | WPN4020H2R2MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Tolerance | ±30% | ±20% | - | ±20% — Candidate has tighter tolerance, which is a direct upgrade. | |
| Package | 4030 | 4030 | 4020 (4x4x2.0mm) | 4030 / 4020 (4x4x2.0mm) — Same package family and dimensions.; WPN4020H2R2MT: Lower profile package (2.0mm vs 3.0mm height). Footprint is likely compatible but must be verified. | |
| Saturation Current A | 5.8 A | 5.8 A | 7.6 A | 5.8 A / 7.6 A — Saturation current matches.; WPN4020H2R2MT: Higher saturation current provides more margin. | |
| Dcr Ohm | 0.039 Ω | 0.039 Ω | 0.040 Ω | 0.039 Ω / 0.040 Ω — DC resistance matches.; WPN4020H2R2MT: DCR is negligibly higher. | |
| Current A | Unknown | 3.2 A | 4.3 A | 3.2 A / 4.3 A — Target's heat rating current (Irms) is unknown and must be verified against application needs.; WPN4020H2R2MT: Candidate has a defined heat rating current; target's is unknown. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SWPA4030S2R2NT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.