What risks should I check before replacing NR5040S220MT?

Key risks include package size mismatch, higher DC Resistance (DCR) causing efficiency loss, and lower current ratings (Irms/Isat) leading to overheating or saturation. Always verify the candidate's datasheet.

NR5040S220MT Alternatives, Datasheet & Cross Reference | Magnetsyc

Find replacements for the Magnetsyc NR5040S220MT, a 22µH, 1.5A SMD power inductor in a 5040 package. This guide provides pin-compatible upgrades and functional alternatives for your power supply design.

AI replacement insight

Electrical risklow

Many alternatives have superior or matching current/DCR specs.

Package riskmedium

Several candidates have different footprints (e.g., 6045) requiring board changes.

Sourcing risklow

This is a common inductor value and package size with multiple vendors.

Can it be replaced directly?

Direct replacement for NR5040S220MT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Upgrade to NR5040-220MTSX01 for higher current handling in the same 5040 footprint.

Main risk

The main risk is selecting an alternative with a different package size, which would require PCB layout changes.

Recommended alternatives

Pin-compatible upgrade with higher current ratings (1.85A Isat) and lower DCR (160mΩ).

View details

Alternative comparison matrix

Feature / factor	NR5040S220MT	NR5040-220MTSX01	SMNR5040-220MT	Compatibility / risk
Package	5040	5040	5040	5040 — Same package family and dimensions.; SMNR5040-220MT: Same package size.
Inductance	22µH	22µH	22µH	22µH — Inductance value matches.; SMNR5040-220MT: Inductance value matches.
Saturation Current A	1.6A	1.85A	1.6A	1.85A / 1.6A — Higher saturation current provides more margin.; SMNR5040-220MT: Saturation current matches.
Current A	1.5A	1.8A	1.5A	1.8A / 1.5A — Higher RMS current rating.; SMNR5040-220MT: RMS current matches.
Dcr Ohm	168mΩ	160mΩ	129mΩ	160mΩ / 129mΩ — Lower DCR improves efficiency.; SMNR5040-220MT: Lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

Verified drop-in options for NR5040S220MT 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.