Is there a pin-compatible replacement for LQW15AN18NJ00D?

Yes, parts like LQW15AN16NG00D and LQW15AN15NG80D are pin-compatible in the same 0402 package. However, they do not have the same 18nH inductance, so they are not direct drop-in replacements and require engineering validation.

What risks should I check before replacing LQW15AN18NJ00D?

Before replacing LQW15AN18NJ00D, the main risk to check is the impact of a different inductance value on your circuit's performance, especially in RF or high-frequency applications. You should also verify that changes in DCR, Q-factor, and SRF are within your design's tolerances. If considering a part in a different package, confirm you can modify the PCB layout.

LQW15AN18NJ00D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Finding a substitute for the Murata LQW15AN18NJ00D 18nH inductor involves trade-offs. While no exact drop-in replacement was identified, several alternatives exist with different inductance values or package sizes that may be suitable after engineering review.

AI replacement insight

Electrical riskhigh

Inductance deviation in all 0402 candidates requires circuit analysis or testing.

Package riskhigh

The best electrical match (LQW18AN18NJ00D) is in a larger 0603 package, requiring a PCB redesign.

Can it be replaced directly?

No exact drop-in replacement with 18nH inductance was found in the same 0402 package. Alternatives like LQW15AN16NG00D are pin-compatible but have different inductance values that require engineering review.

Best replacement path

For new designs with layout flexibility, LQW18AN18NJ00D is an ideal electrical upgrade. For existing 0402 layouts, LQW15AN15NG80D offers a significant performance boost if the lower 15nH inductance is acceptable.

Main risk

The primary risk is inductance mismatch. All pin-compatible candidates have a different inductance value, which can affect the performance of frequency-sensitive circuits like filters and oscillators.

Recommended alternatives

High-performance upgrade in the same package, but with lower inductance.

View details

Alternative comparison matrix

Feature / factor	LQW15AN18NJ00D	LQW15AN15NG80D	LQW15AN16NG00D	LQW18AN18NJ00D	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0603 (1608 metric)	0402 (1005 metric) / 0603 (1608 metric) — Package is a form and fit match.; LQW15AN16NG00D: Package is a form and fit match.; LQW18AN18NJ00D: Candidate is larger, requires PCB layout change.
Inductance	18 nH	15 nH	16 nH	18 nH	15 nH / 16 nH / 18 nH — Inductance is 16.7% lower than target.; LQW15AN16NG00D: Inductance is 11% lower than target.; LQW18AN18NJ00D: Inductance matches target value.
Current	370 mA	1150 mA	-	550 mA	1150 mA / 550 mA — Significantly higher current rating is a major upgrade.; LQW18AN18NJ00D: Higher current rating is an upgrade.
Dcr	0.27 Ω	0.114 Ω	0.24 Ω	0.16 Ω	0.114 Ω / 0.24 Ω / 0.16 Ω — Significantly lower DCR is a major improvement.; LQW15AN16NG00D: Slightly lower DC resistance.; LQW18AN18NJ00D: Lower DC resistance is an improvement.
Q Factor	25	31	-	40	31 / 40 — Higher Q-factor provides better performance.; LQW18AN18NJ00D: Higher Q-factor provides better performance.
Tolerance	±5%	-	±2%	-	±2% — Tighter tolerance is an improvement.
Srf	4.5 GHz	-	4.5 GHz	-	4.5 GHz — Self-resonant frequency matches target.

Application & sourcing insights

Questions & answers

The best alternative depends on your design constraints. If you can change your PCB layout, LQW18AN18NJ00D is an electrical upgrade. If you need the same 0402 package, LQW15AN15NG80D is a high-performance option, but you must verify if its 15nH inductance is acceptable for your circuit.