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Best Alternatives to SMNR5040-330MT

Package: 5040SXNChokesInductance: 33 µHTolerance: ±20%Saturation Current: 1.3 ATemperature Rise Current: 1.2 ADC Resistance (DCR) Typical: 0.188 Ω

Find replacements for the SMNR5040-330MT, a 33µH, 1.3A SMD power inductor in a 5040 package. Review key parametric differences and package compatibility before selection.

AI replacement insight

Package riskhigh

Many alternatives have different footprints, requiring a board redesign.

Electrical risklow

Several candidates meet or exceed the target's electrical specifications.

Can it be replaced directly?

Direct replacement for SMNR5040-330MT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is SWPA5040S330MT, which matches the package and key electricals. For new designs, functional alternatives may offer better performance.

Main risk

The primary risk is selecting a part with a non-matching package, which will not fit on the existing PCB layout.

Recommended alternatives

2
SWPA5040S330MT package
SWPA5040S330MT

Sunlord

Needs validationlow risk

A strong alternative with matching package, inductance, current ratings, and DCR.

View details

Alternative comparison matrix

Feature / factorSMNR5040-330MTSWPA5040S330MTSLO0630H330MTTAlt 3Compatibility / risk
Package504050406.6x6.4x3.0mm5040 / 6.6x6.4x3.0mm — Package size and footprint appear identical.; SLO0630H330MTT: Different footprint requires PCB redesign.
Inductance33 µH33 µH33 µH33 µH — Inductance value is identical.; SLO0630H330MTT: Inductance value is identical.
Saturation Current A1.3 A1.3 A3.0 A1.3 A / 3.0 A — Saturation current (Isat) is identical.; SLO0630H330MTT: Higher saturation current provides more margin.
Current1.2 A1.2 A2.0 A1.2 A / 2.0 A — Heat rating current (Irms) is identical.; SLO0630H330MTT: Higher heat rating current provides more margin.
Dcr Ohm0.188 Ω0.188 Ω0.189 Ω0.188 Ω / 0.189 Ω — Typical DC Resistance is identical.; SLO0630H330MTT: Typical DC Resistance is nearly identical.

Application & sourcing insights

Questions & answers

Verified drop-in options for SMNR5040-330MT 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.