LQM21PN4R7MGRD
Murata Electronics
Needs validationhigh risk
A functional alternative with higher current handling but in a larger 0805 package.
Best Alternatives to LQM18PN4R7MFRL
LQM18PN4R7MFRL is a 4.7µH power inductor in a compact 0603 package. Finding a direct drop-in replacement is challenging, but functional alternatives with different package sizes exist.
AI replacement insight
Package riskhigh
Alternatives are in larger 0805 or 1008 packages.
Electrical risklow
Alternatives offer improved current and DCR ratings.
Can it be replaced directly?
No direct pin-to-pin replacement has been identified. All potential upgrades require a larger PCB footprint.
Best replacement path
Consider Murata's LQM21PN or LQM2HPN series for higher performance if a larger footprint (0805 or 1008) is acceptable.
Main risk
The primary risk is the package size mismatch, requiring PCB redesign for any identified alternative.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | LQM18PN4R7MFRL | LQM21PN4R7MGRD | LQM2HPN4R7MG0L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 metric) | 0805 (2012 metric) | - | 1008 (2520 metric) — Candidate is significantly larger, requires layout change. | |
| Inductance | 4.7 µH | 4.7 µH | - | 4.7 µH — matched | |
| Current | 0.62 A | 0.8 A | - | 1.1 A — Higher current rating provides more margin. | |
| Dcr | 0.44 Ω | 0.23 Ω | - | 0.138 Ω — Lower DCR improves efficiency. | |
| Temperature | -40°C to +85°C | -55°C to +125°C | - | -55°C to +125°C — Wider operating range. |
Application & sourcing insights
Questions & answers
If your board can accommodate a larger 0805 package, LQM21PN4R7MGRD offers higher current and lower resistance. No direct 0603 replacement with similar or better specs was found.