
Murata Electronics
Same inductance and package, with better DCR and Q, but a slightly lower current rating.
Finding a substitute for the Murata LQG18HN18NJ00D, an 18nH 0603 multilayer inductor, involves balancing inductance, current rating, and DC resistance. This guide reviews top alternatives and their specific trade-offs.
Candidates have different current, DCR, or inductance values that require circuit analysis.
All viable candidates share the same 0603 package, ensuring form and fit compatibility.
No exact drop-in replacement was found. All viable alternatives require verifying at least one different electrical parameter, such as rated current or inductance.
The Murata LQW18AN18NJ00D offers superior RF performance (higher Q, lower DCR) and is the best path if the circuit can tolerate a slightly lower 550mA current rating.
The primary risk is electrical overstress from using a substitute with a lower current rating, or circuit detuning from using a different inductance value.

Murata Electronics
Same inductance and package, with better DCR and Q, but a slightly lower current rating.
| Feature / factor | LQG18HN18NJ00D | LQW18AN18NJ00D | LQG18HN15NJ00D | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 metric) | 0603 (1608 metric) | 0603 (1608 metric) | 0603 (1608 metric) — Package size matches.; LQG18HN15NJ00D: Package size matches. | |
| Inductance | 18 nH | 18 nH | 15 nH | 18 nH / 15 nH — Inductance value matches.; LQG18HN15NJ00D: Inductance is 17% lower than target. | |
| Current | 600 mA | 550 mA | 600 mA | 550 mA / 600 mA — Candidate has 8% lower rated current.; LQG18HN15NJ00D: Rated current matches. | |
| Dcr | 0.37 Ω | 0.16 Ω | 0.35 Ω | 0.16 Ω / 0.35 Ω — Lower DCR reduces power loss.; LQG18HN15NJ00D: Slightly lower DCR. | |
| Temperature | -40°C to +85°C | -55°C to +125°C | - | -55°C to +125°C — Wider operating temperature range. |
The best alternative is likely Murata's LQW18AN18NJ00D, which offers better DCR and Q factor, but you must verify if its slightly lower 550mA current rating is acceptable for your design.