Needs validationlow risk
AEC-Q200 qualified upgrade with much higher current ratings and wider temperature range.
Best Alternatives to SLM25203R3MIT
Find substitutes for the SLM25203R3MIT, a 3.3µH power inductor in a 2520 package. Key alternatives offer higher current ratings but may have increased DCR, requiring careful review.
AI replacement insight
Electrical riskhigh
Target's saturation current (Isat) is unknown. Candidate Isat must be verified for the application.
Package risklow
All recommended alternatives use the same 2520 package footprint.
Sourcing risklow
Candidates are available from major manufacturers like TDK, Murata, and Sunlord.
Can it be replaced directly?
No perfect drop-in is identified due to DCR variations and the target's missing Isat spec. However, several form-fit compatible parts like TFM252012ALMA3R3MTAA are available as upgrades.
Best replacement path
TDK's TFM252012ALMA3R3MTAA is a strong upgrade, offering higher current ratings, a wider temperature range, and AEC-Q200 qualification.
Main risk
The primary risk is the target's unspecified saturation current (Isat). You must verify the candidate's Isat meets your peak current needs. Most upgrades also have higher DCR, impacting efficiency.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | SLM25203R3MIT | TFM252012ALMA3R3MTAA | DFE252012F-3R3M=P2 | FPA252012D-3R3MT0 | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 3.3 µH | 3.3 µH | 3.3 µH | 3.3 µH | 3.3 µH — Inductance value matches.; DFE252012F-3R3M=P2: Inductance value matches.; FPA252012D-3R3MT0: Inductance value matches.; WPN252012H3R3MT: Inductance value matches. |
| Package | 2520 (1008) | 2520 (1008 Metric) | 2520 | 2520 | 2520 (1008 Metric) — Package size 2.5x2.0mm matches.; DFE252012F-3R3M=P2: Package size 2.5x2.0mm matches.; FPA252012D-3R3MT0: Package size 2.5x2.0mm matches.; WPN252012H3R3MT: Package size 2.5x2.0mm matches. |
| Current | 1.1 A | 2.0 A | 1.8 A | 1.7 A | 2.0 A / 1.8 A / 1.7 A — Significantly higher RMS current rating.; DFE252012F-3R3M=P2: Higher RMS current rating (from Itemp).; FPA252012D-3R3MT0: Higher RMS current rating (from Itemp).; WPN252012H3R3MT: Candidate has higher RMS current rating. |
| Dcr | 0.100 Ω | 0.14 Ω | 0.135 Ω | 0.14 Ω | 0.14 Ω / 0.135 Ω / 0.136 Ω — Higher DCR will increase power loss.; DFE252012F-3R3M=P2: Higher DCR will increase power loss.; FPA252012D-3R3MT0: Higher DCR will increase power loss.; WPN252012H3R3MT: Higher DCR will increase power loss. |
| Temperature | -55°C to +125°C | -55°C to +150°C | - | - | -55°C to +150°C / -40°C to +125°C — Wider operating temperature range.; WPN252012H3R3MT: Slightly narrower operating range at low end. |
Application & sourcing insights
Questions & answers
TDK's TFM252012ALMA3R3MTAA is a strong upgrade, with higher current ratings and AEC-Q200 compliance. However, its DCR is higher, so verify efficiency impact.