Is there a pin-compatible replacement for LQW15AN43NG00D?

Yes, parts like LQW15AN39NG00D and LQW15AN47NG80D are pin-compatible as they share the same 0402 package and 2-pin layout. However, their inductance values differ, so they are not drop-in replacements without electrical verification.

What risks should I check before replacing LQW15AN43NG00D?

The primary risk is the change in inductance, which can detune RF circuits like filters or matching networks. Always verify if the new inductance value (e.g., 39nH or 47nH) is within your circuit's tolerance. Also check secondary parameters like SRF and Q, although close family members are often similar.

LQW15AN43NG00D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

LQW15AN43NG00D is a 43nH high-frequency wirewound inductor from Murata in a 0402 package, designed for RF circuits requiring tight tolerance and high Q. Alternatives exist within the same family with slight inductance variations.

AI replacement insight

Electrical riskmedium

Inductance value differs, which can detune RF filters and matching networks. Requires verification.

Package risklow

Candidates share the same 0402 package and pinout, ensuring mechanical compatibility.

Can it be replaced directly?

No direct drop-in replacement with identical 43nH inductance and ±2% tolerance is commonly available. The closest options are LQW15AN39NG00D (39nH) and LQW15AN47NG80D (47nH).

Best replacement path

Use another inductor from the Murata LQW15AN series with the closest available inductance value.

Main risk

Inductance mismatch, which can affect the performance of frequency-sensitive circuits.

Recommended alternatives

Pin-compatible with higher current and lower DCR, but slightly higher inductance (47nH).

View details

Alternative comparison matrix

Feature / factor	LQW15AN43NG00D	LQW15AN47NG80D	LQW15AN39NG00D	Compatibility / risk
Inductance	43 nH	47 nH	39 nH	47 nH / 39 nH — Slightly higher inductance may detune RF circuits.; LQW15AN39NG00D: Slightly lower inductance may detune RF circuits.
Current	0.25 A	0.44 A	0.25 A	0.44 A / 0.25 A — Higher current rating provides more margin.; LQW15AN39NG00D: matched
Dcr	0.7 Ω	0.071 Ω	0.7 Ω	0.071 Ω / 0.7 Ω — Significantly lower DCR reduces DC losses.; LQW15AN39NG00D: matched
Srf	3.0 GHz	3.2 GHz	3.0 GHz	3.2 GHz / 3.0 GHz — Higher SRF provides wider usable frequency range.; LQW15AN39NG00D: Self-Resonant Frequency (min)
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — matched; LQW15AN39NG00D: matched

Application & sourcing insights

Questions & answers

The best alternatives are typically other parts in Murata's LQW15AN series, such as LQW15AN39NG00D or LQW15AN47NG80D. These offer similar performance but have slightly different inductance values (39nH and 47nH respectively), which must be verified for your specific application.