Is there a pin-compatible replacement for SM5845-470MT?

No pin-compatible replacements have been verified. Other parts in the SM5845 series have different inductance values. Alternatives require careful review of package dimensions.

What risks should I check before replacing SM5845-470MT?

Key risks include package mismatch requiring board layout changes, differences in shielding which affect EMI, and variations in DC Resistance (DCR) which impact efficiency.

SM5845-470MT Alternatives, Datasheet & Cross Reference | SXN

The SXN SM5845-470MT is a 47µH unshielded SMD power inductor. Finding a direct replacement requires matching inductance, current ratings, and the SM5845 package.

AI replacement insight

Package riskhigh

No alternatives match the SM5845 footprint, requiring board redesign.

Electrical riskmedium

Alternatives have different shielding and DCR, which affects EMI and efficiency.

Sourcing risklow

Alternatives from the same manufacturer are available.

Can it be replaced directly?

No direct, drop-in replacement for SM5845-470MT has been found. All potential candidates have different packages or critical electrical parameters.

Best replacement path

Consider SMDRI74-470MT for a parametric upgrade if a board redesign is feasible. It offers higher current handling and lower DCR.

Main risk

The primary risk is physical incompatibility. No alternatives share the SM5845 package with the required 47µH inductance.

Recommended alternatives

Parametrically superior alternative with higher current and lower DCR, but requires board redesign due to a larger package.

View details

Alternative comparison matrix

Feature / factor	SM5845-470MT	SMDRI74-470MT	SMNR4030-470MT	Compatibility / risk
Inductance	47µH	47µH	47µH	47µH — Inductance matches target value.; SMNR4030-470MT: Inductance matches target value.
Saturation Current A	0.8A	1.5A	0.95A	1.5A / 0.95A — Significantly higher saturation current.; SMNR4030-470MT: Higher saturation current is an improvement.
Dcr Ohm	0.37Ω	0.26Ω	0.57Ω max	0.26Ω / 0.57Ω max — Lower DCR improves efficiency.; SMNR4030-470MT: Higher DCR will increase power loss.
Package	SM5845 (5.8x5.2mm)	7.5x7.5mm	4030 (4x4mm)	7.5x7.5mm / 4030 (4x4mm) — Larger footprint requires board redesign.; SMNR4030-470MT: Different footprint requires board redesign.
Shielding	Unshielded	Shielded	Shielded	Shielded — May alter EMI performance.; SMNR4030-470MT: May alter EMI performance.

Application & sourcing insights

Questions & answers

There are no direct drop-in replacements identified. Functional alternatives like SMDRI74-470MT offer better electrical performance but require a board redesign due to a different package.