Is there a pin-compatible replacement for CMP321609UD4R7MT?

No, we have not identified a pin-compatible replacement for the CMP321609UD4R7MT. All functional alternatives require changes to the PCB layout due to different package sizes.

What risks should I check before replacing CMP321609UD4R7MT?

The main risk is the package mismatch, which requires a PCB redesign. You must also verify the replacement's height clearance and confirm its saturation current (Isat) is sufficient for your specific power application.

CMP321609UD4R7MT Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

Finding a replacement for the CMP321609UD4R7MT, a 4.7µH power inductor in a 1206 package, requires careful consideration. While no direct drop-in substitutes have been found, several functional alternatives offer superior electrical performance in different packages.

AI replacement insight

Package riskhigh

No candidates match the 1206 package. Board redesign is required.

Electrical riskmedium

Target's saturation current is unknown. While candidates have higher RMS current, Isat must be verified for the application.

Can it be replaced directly?

No, a direct, pin-for-pin compatible replacement for CMP321609UD4R7MT has not been identified. All suitable alternatives have different package footprints.

Best replacement path

Review functional alternatives with better electrical specs, but be prepared for PCB layout changes as no drop-in replacements were found.

Main risk

Package mismatch is the primary risk; all viable alternatives require PCB layout changes.

Recommended alternatives

A functional alternative with improved current and DCR, but in a smaller 0805 package requiring layout changes.

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Alternative comparison matrix

Feature / factor	CMP321609UD4R7MT	MPL2012S4R7MHT	SWPA3015S4R7MT	SWPA6045S4R7MT	Compatibility / risk
Inductance	4.7µH	4.7µH	-	-	4.7µH — Inductance matches.
Current	0.7A	0.8A	-	-	3.5A — Significantly higher current rating.
Dcr	0.38Ω	0.25Ω	-	-	0.03Ω — Much lower DCR improves efficiency.
Package	1206 (3.2x1.6mm)	0805 (2.0x1.25mm)	-	-	6045 (6.0x4.5mm) — Package is much larger and not footprint compatible.

Application & sourcing insights

Questions & answers

There is no single 'best' alternative, as it depends on board space. MPL2012S4R7MHT is an electrical upgrade in a smaller 0805 package. If space allows, SWPA6045S4R7MT offers significantly higher performance but is much larger.