SPH4018H3R3MT
Sunlord
Needs validationlow risk
A strong alternative with matching package, inductance, and DCR, plus higher current ratings.
Best Alternatives to NRS4018T3R3MDGJ
Finding a substitute for the TAIYO YUDEN NRS4018T3R3MDGJ 3.3µH power inductor involves matching its 4018 package, DCR, and current ratings. Several alternatives exist with similar or better electrical characteristics.
AI replacement insight
Electrical risklow
Top candidates have equal or better electrical specs.
Package risklow
Candidates with matching 4018 packages are available, but land pattern verification is always prudent.
Can it be replaced directly?
Direct replacement for NRS4018T3R3MDGJ should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The Sunlord SPH4018H3R3MT is the best replacement path, offering a matching package and key parameters with improved current handling.
Main risk
The main risk is ensuring the land pattern is identical and that any subtle differences in performance curves (e.g., inductance vs. current) do not impact the application.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | NRS4018T3R3MDGJ | SPH4018H3R3MT | SWPA4018S3R3MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4018 | 4018 | 4018 | 4018 — Candidate matches target's 4.0x4.0mm footprint.; SWPA4018S3R3MT: Candidate matches target's 4.0x4.0mm footprint. | |
| Inductance | 3.3 µH | 3.3 µH | 3.3 µH | 3.3 µH — Inductance matches.; SWPA4018S3R3MT: Inductance matches. | |
| Dcr Ohm | 0.055 Ω | 0.055 Ω | 0.091 Ω | 0.055 Ω / 0.091 Ω — DC resistance matches, ensuring similar efficiency.; SWPA4018S3R3MT: DCR is ~65% higher, leading to increased power loss. | |
| Saturation Current A | 2.3 A | 2.9 A | 2.9 A | 2.9 A — Higher saturation current provides more margin.; SWPA4018S3R3MT: Higher saturation current provides more margin. | |
| Temperature | -25°C to +125°C | -40°C to +125°C | - | -40°C to +125°C — Wider operating temperature range. | |
| Current A | N/A | - | Missing | Missing — RMS current (Irms/Itemp) rating is missing and must be verified. |
Application & sourcing insights
Questions & answers
Verified drop-in options for NRS4018T3R3MDGJ 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.