Is there a pin-compatible replacement for SMMS252010-4R7M?

Yes, parts like AFE252010S4R7MBT and XRIM252010S4R7MBCA are available in the same 2.5x2.0x1.0mm package with a standard 2-pin layout, making them potential pin-compatible replacements.

What risks should I check before replacing SMMS252010-4R7M?

Before replacing, verify the substitute's saturation current (Isat), RMS current (Irms), and DC resistance (DCR). Ensure the ratings are equal to or better than the original part to avoid performance issues.

SMMS252010-4R7M Alternatives, Datasheet & Cross Reference | SXN

Find and compare replacements for the SMMS252010-4R7M, a 4.7µH power inductor in a 2520 package. Explore upgrade paths with higher current ratings and identical form factors.

AI replacement insight

Electrical risklow

Multiple parts meet or exceed key electrical specs. Downgrades exist and must be avoided without analysis.

Package risklow

The 2520 (1008) 1.0mm height package is common. Check for height variations (e.g., 1.2mm) in some alternatives.

Can it be replaced directly?

Yes, several alternatives exist. AFE252010S4R7MBT is a strong candidate that matches the 2520 1.0mm package and offers improved current ratings.

Best replacement path

AFE252010S4R7MBT is a strong upgrade path, offering higher current ratings in an identical package. XRIM252010S4R7MBCA is also a strong upgrade but requires pinout verification.

Main risk

The primary risk is selecting a substitute with lower current ratings (Isat or Irms) or higher DC resistance (DCR), which could lead to saturation, overheating, or reduced efficiency.

Recommended alternatives

A form-fit inductor with higher saturation (2.6A) and RMS (2.0A) current ratings, offering an upgrade path.

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Alternative comparison matrix

Feature / factor	SMMS252010-4R7M	AFE252010S4R7MBT	XRIM252010S4R7MBCA	XRIM252012S4R7MBCA	Compatibility / risk
Package	2520, 1.0mm height	2520 (1008 Metric), 1.0mm height	2520, 1.0mm height	2520, 1.2mm height	2520 (1008 Metric), 1.0mm height / 2520, 1.0mm height / 2520, 1.2mm height — Matches target form factor.; XRIM252010S4R7MBCA: Matches target form factor.; XRIM252012S4R7MBCA: Candidate is 0.2mm taller.
Inductance	4.7µH	4.7µH	-	-	4.7µH — matched
Saturation Current	2.0A	2.6A	2.6A	2.4A	2.6A / 2.4A — Higher saturation current provides more margin.; XRIM252010S4R7MBCA: Higher saturation current.; XRIM252012S4R7MBCA: Higher saturation current.
Rms Current	1.6A	2.0A	2.0A	1.8A	2.0A / 1.8A — Higher RMS current rating.; XRIM252010S4R7MBCA: Higher RMS current.; XRIM252012S4R7MBCA: Higher RMS current.
Dcr	0.16Ω	0.16Ω	-	0.15Ω	0.16Ω / 0.15Ω — Matches typical DCR.; XRIM252012S4R7MBCA: Lower DCR improves efficiency.
Pinout	2	-	null	-	null — Pin count is missing but assumed to be 2.

Application & sourcing insights

Questions & answers

The best alternative for SMMS252010-4R7M is AFE252010S4R7MBT. It matches the 4.7µH inductance and 2520 package while offering higher saturation (2.6A) and RMS (2.0A) current ratings.