Is there a pin-compatible replacement for WPN252012H3R3MT?

Yes, TDK's TFM252012ALMA3R3MTAA shares the same 2520 package and pinout, serving as a potential pin-compatible upgrade.

What risks should I check before replacing WPN252012H3R3MT?

Always verify the substitute's current ratings (both saturation and RMS/heat rating) and DC resistance (DCR). Ensure the package dimensions and land pattern are identical for a drop-in replacement.

WPN252012H3R3MT Alternatives, Datasheet & Cross Reference | Shenzhen Sunlord Electronics Co., Ltd.

Find substitutes for the Sunlord WPN252012H3R3MT, a 3.3µH, 1.8A power inductor in a 2520 package. Analysis includes pin-compatible upgrades and functional alternatives requiring board changes.

AI replacement insight

Electrical risklow

Key parameters like inductance are matched, but current ratings and DCR must be verified.

Package riskhigh

Many functional alternatives require a different PCB layout; only true pin-to-pin parts avoid this.

Can it be replaced directly?

Yes, TFM252012ALMA3R3MTAA from TDK is a potential pin-compatible replacement with superior electrical characteristics.

Best replacement path

TDK's TFM252012ALMA3R3MTAA is a strong pin-compatible upgrade with higher current ratings and AEC-Q200 qualification.

Main risk

The primary risk is using a substitute with a lower current rating (Irms or Isat), which can lead to overheating or performance degradation.

Recommended alternatives

Pin-compatible upgrade with higher current ratings (2.0A Irms, 2.1A Isat) and wider temp range.

View details

Alternative comparison matrix

Feature / factor	WPN252012H3R3MT	TFM252012ALMA3R3MTAA	FPA252012D-3R3MT0	Compatibility / risk
Package	2520	2520 (1008 Metric)	2520	2520 (1008 Metric) — Package size and pin count match.; FPA252012D-3R3MT0: Package size and pin count match.
Inductance	3.3 µH	3.3 µH	3.3 µH	3.3 µH — matched; FPA252012D-3R3MT0: matched
Current	1.8 A	2.0 A	1.7 A	2.0 A / 1.7 A — Heat rating current (Irms) is higher.; FPA252012D-3R3MT0: Heat rating current (Irms) is lower.
Saturation Current A	1.7 A	2.1 A	2.1 A	2.1 A — Saturation current (Isat) is higher.; FPA252012D-3R3MT0: Saturation current (Isat) is higher.
Dcr Ohm	136 mΩ typ	140 mΩ max	140 mΩ max	140 mΩ max — Slightly higher DCR may increase losses.; FPA252012D-3R3MT0: Slightly higher DCR.
Temperature	-40°C to +125°C	-55°C to +150°C	-	-55°C to +150°C — Wider operating temperature range.

Application & sourcing insights

Questions & answers

TDK TFM252012ALMA3R3MTAA is an excellent alternative, offering a pin-compatible package with higher current ratings and a wider temperature range.