Is there a pin-compatible replacement for SMDRI127-150MT?

No direct pin-compatible replacement has been verified. Würth Elektronik's 7447709150 has a compatible land pattern but is taller, so you must check for mechanical clearance in your design before using it as a replacement.

What risks should I check before replacing SMDRI127-150MT?

First, check physical dimensions; ensure the replacement fits the PCB footprint and height constraints. Second, verify electrical parameters; the saturation current (Isat) and RMS current (Irms) must be equal to or greater than the original part to avoid overheating or performance issues.

SMDRI127-150MT Alternatives, Datasheet & Cross Reference | SXN

Finding a substitute for the SMDRI127-150MT, a 15µH, 8A shielded power inductor, involves balancing electrical performance with physical package constraints. Several functional and parametric alternatives exist, but careful review is required.

AI replacement insight

Package riskhigh

Many candidates have different footprints or heights, requiring layout changes or mechanical checks.

Electrical riskmedium

Some options have lower saturation current (Isat), which can cause circuit failure under load.

Sourcing risklow

Most alternatives are from major manufacturers and are actively produced.

Can it be replaced directly?

No verified drop-in, pin-to-pin replacement has been identified. The closest candidate, 7447709150, has a compatible footprint but is 2mm taller, which requires a mechanical clearance check.

Best replacement path

Würth Elektronik's 7447709150 is the closest match but requires verifying its 2mm taller height. For an electrical upgrade where layout can change, Vishay's IHLP5050FDER150M01 is a strong option.

Main risk

The primary risks are physical incompatibility (package size/height) and electrical downgrades, particularly lower saturation current in some alternatives.

Recommended alternatives

Offers higher current ratings but has a slightly different package size, requiring a board layout change.

View details

Alternative comparison matrix

Feature / factor	SMDRI127-150MT	7447709150	FCH1365-150M	744770115	Compatibility / risk
Inductance	15 µH	15 µH	15 µH	15 µH	15 µH — Inductance matches target.; FCH1365-150M: Inductance matches target.; 744770115: Inductance matches target.; SMMS1770-150M: Inductance matches target.
Current	8A (Isat), 4.5A (Irms)	8A (Isat), 6.5A (Irms)	12A (Isat), 10A (Irms)	5.0 A	8A (Isat), 6.5A (Irms) / 12A (Isat), 10A (Irms) / 5.0 A / Unknown — Matched Isat, higher Irms.; FCH1365-150M: Higher saturation and RMS current ratings.; 744770115: Higher RMS current.; SMMS1770-150M: RMS current not specified, must be verified.
Resistance	27 mΩ	26 mΩ	30 mΩ	-	26 mΩ / 30 mΩ / 18.8 mΩ — DCR is matched.; FCH1365-150M: Slightly higher DCR.; SMMS1770-150M: Lower DCR improves efficiency.
Package	12.3x12.3x8.0mm	12.5x12.5x10.0mm	13.7x12.8x6.5mm	12.5x12.5x8.0mm	12.5x12.5x10.0mm / 13.7x12.8x6.5mm / 12.5x12.5x8.0mm / 17.5x17.15x7.0mm — Footprint is very close, but part is 2mm taller.; FCH1365-150M: Different footprint, not a drop-in replacement.; 744770115: Package size is a very close match.; SMMS1770-150M: Larger footprint, not a drop-in replacement.

Application & sourcing insights

Questions & answers

The best alternative is Würth Elektronik's 7447709150, which offers comparable electrical performance in a similar footprint but is 2mm taller. If a board redesign is possible, Vishay's IHLP5050FDER150M01 is a superior electrical upgrade.