Is there a pin-compatible replacement for LQM18NNR22K00D?

Yes, several 0603 package inductors are pin-compatible, such as those in Murata's LQW18C series. However, none are electrically identical. You must verify key parameters like inductance, DCR, and current rating before substitution.

What risks should I check before replacing LQM18NNR22K00D?

Key risks include: 1) Inductance mismatch, affecting circuit tuning or filter performance. 2) Increased DC Resistance (DCR), causing higher power loss. 3) Reduced operating temperature range. 4) A lower current rating, which could lead to failure.

LQM18NNR22K00D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

LQM18NNR22K00D is a 220nH, 50mA multilayer chip inductor in a 0603 package from Murata. Finding a suitable replacement requires careful matching of inductance, DC resistance (DCR), and operating temperature range.

AI replacement insight

Electrical riskhigh

Inductance, DCR, and temperature mismatches require circuit validation.

Package risklow

Candidates share the same 0603 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, drop-in replacement has been identified. All reviewed candidates have significant parametric differences in inductance, DCR, or temperature range that require engineering review.

Best replacement path

Search for 0603 inductors near 220nH with DCR under 0.8Ω and current rating over 50mA. Consider other parts in Murata's LQM18NN series for closer matches.

Main risk

The main risk is functional failure due to mismatched inductance affecting circuit tuning, or increased power loss from higher DCR.

Recommended alternatives

A 0603 inductor with much higher current (1A) and lower DCR (0.1Ω), but lower inductance and a reduced temperature range.

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Alternative comparison matrix

Feature / factor	LQM18NNR22K00D	LQW18CNR16J00D	LQW18ANR27G00D	Compatibility / risk
Package	0603 (1608 Metric)	0603 (1608 metric)	0603 (1608 metric)	0603 (1608 metric) — Package size matches.; LQW18ANR27G00D: Package size matches.
Inductance	220 nH	160 nH	270 nH	160 nH / 270 nH — Inductance is ~27% lower.; LQW18ANR27G00D: Inductance is ~23% higher.
Current	50 mA	1.0 A	110 mA	1.0 A / 110 mA — Current rating is significantly higher.; LQW18ANR27G00D: Current rating is higher.
Dcr	0.8 Ω	0.1 Ω	3.4 Ω	0.1 Ω / 3.4 Ω — DCR is much lower, reducing DC losses.; LQW18ANR27G00D: DCR is over 4x higher, increasing losses.
Temperature	-55°C to 125°C	-40°C to +85°C	Not specified	-40°C to +85°C / Not specified — Operating temperature range is narrower.; LQW18ANR27G00D: Operating temperature range is missing.

Application & sourcing insights

Questions & answers

There is no single best alternative. LQW18CNR16J00D offers much higher current but has lower inductance and a narrower temperature range. Other options may have excessively high DCR. Review your circuit's tolerance for these changes.