Is there a pin-compatible replacement for LQM21PZ4R7MGRD?

Currently, no pin-for-pin compatible replacement has been verified. All identified functional alternatives are in different package sizes, such as 0806 or 1008, and are not drop-in replacements.

What risks should I check before replacing LQM21PZ4R7MGRD?

The main risks are package incompatibility, requiring a PCB redesign, and loss of AEC-Q200 qualification if the chosen alternative is not automotive grade. Always verify the candidate's package dimensions and qualifications against your application's requirements.

LQM21PZ4R7MGRD Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

LQM21PZ4R7MGRD is a 4.7µH AEC-Q200 qualified inductor in a compact 0805 package. Finding a direct drop-in replacement is challenging, and alternatives often require board layout changes.

AI replacement insight

Package riskhigh

No drop-in package found; all alternatives require a PCB layout change.

Electrical risklow

Many alternatives offer improved current handling and lower DCR.

Sourcing riskmedium

Ensure any selected alternative meets the required AEC-Q200 qualification.

Can it be replaced directly?

No direct pin-compatible replacement has been identified. All potential alternatives have different package sizes and are not drop-in replacements.

Best replacement path

For board revisions, DFE252012PD-4R7M=P2 is a strong functional alternative. It is automotive grade with superior electricals, but requires a layout change for its larger 1008 package.

Main risk

The primary risk is mechanical incompatibility. No alternatives share the target's 0805 package, necessitating a board redesign.

Recommended alternatives

Strong alternative for redesigns; matches automotive grade with better electricals but in a larger 1008 package.

View details

Alternative comparison matrix

Feature / factor	LQM21PZ4R7MGRD	DFE252012PD-4R7M=P2	DFE252010F-4R7M=P2	LQM2MPN4R7MG0L	Compatibility / risk
Inductance	4.7 µH	4.7 µH	4.7 µH	4.7 µH	4.7 µH — Identical inductance value.; DFE252010F-4R7M=P2: Identical inductance value.; LQM2MPN4R7MG0L: Identical inductance value.
Current	0.8 A	1.9 A	1.9 A	1.1 A	1.9 A / 1.1 A — Significantly higher current rating.; DFE252010F-4R7M=P2: Significantly higher current rating.; LQM2MPN4R7MG0L: Higher current rating provides more margin.
Dcr	0.23 Ω	0.2 Ω	0.24 Ω	0.175 Ω	0.2 Ω / 0.24 Ω / 0.175 Ω — Lower DCR improves efficiency.; DFE252010F-4R7M=P2: Slightly higher DCR, minor efficiency loss.; LQM2MPN4R7MG0L: Lower DCR improves efficiency.
Package	0805 (2012 metric)	1008 (2520 metric)	1008 (2520 metric)	0806 (2016 metric)	1008 (2520 metric) / 0806 (2016 metric) — Larger package, requires board redesign.; DFE252010F-4R7M=P2: Larger package, requires board redesign.; LQM2MPN4R7MG0L: Not a drop-in replacement, requires layout change.
Application	AEC-Q200	Automotive	-	Commercial	Automotive / Commercial — Matches target's automotive qualification.; LQM2MPN4R7MG0L: Lacks target's AEC-Q200 qualification.

Application & sourcing insights

Questions & answers

For designs that can accommodate a larger footprint, DFE252012PD-4R7M=P2 is a strong candidate. It matches the automotive qualification and offers better electrical specs, but requires a board redesign for its 1008 package.