Is there a pin-compatible replacement for LQM21PN2R2MC0D?

Yes, parts like Murata LQM21PN2R2NGCD and Taiyo Yuden BRC2012T2R2MD are available in the same 0805 package and are considered form-fit compatible. However, you must review their electrical parameters like current rating, DCR, and temperature range to ensure they are a functional fit for your circuit.

What risks should I check before replacing LQM21PN2R2MC0D?

Before replacing, check three main risks: 1) Saturation Current (Isat): Ensure the replacement's Isat exceeds your circuit's peak current. 2) DC Resistance (DCR): A higher DCR will increase power loss. 3) Operating Temperature: Verify the replacement's temperature range meets your application's requirements.

LQM21PN2R2MC0D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

LQM21PN2R2MC0D is a 2.2µH, 0.6A fixed inductor in a standard 0805 package from Murata. Several form-fit and functional alternatives are available, offering potential upgrades in current handling and efficiency, but require careful review of parametric trade-offs like temperature range and tolerance.

AI replacement insight

Electrical riskhigh

Unspecified saturation current (Isat) on the target part. DCR and SRF differences can affect circuit efficiency and high-frequency behavior.

Package risklow

Multiple candidates are available in the same 0805 package, ensuring form-fit compatibility.

Sourcing risklow

Alternatives are available from multiple major manufacturers like Murata and Taiyo Yuden.

Can it be replaced directly?

Yes, several form-fit alternatives in an 0805 package exist, such as LQM21PN2R2NGCD and BRC2012T2R2MD. However, all candidates have parametric differences (e.g., tolerance, temperature range) that require engineering review.

Best replacement path

For a drop-in replacement, LQM21PN2R2NGCD offers a similar profile with better current handling, but wider tolerance. For an upgrade, BRC2012T2R2MD provides superior current specs but requires verifying the narrower temperature range.

Main risk

The primary risk is the unspecified saturation current (Isat) of the target part. A substitute must have an Isat sufficient for the application's peak current to avoid inductance drop-off.

Recommended alternatives

A form-fit alternate with superior current/DCR but a restricted temperature range.

View details

Alternative comparison matrix

Feature / factor	LQM21PN2R2MC0D	LQM21PN2R2MGSD	LQM21PN2R2NGCD	BRC2012T2R2MD	Compatibility / risk
Package	0805 (2012 metric)	0805 (2012 metric)	0805 (2012 metric)	0805 (2012 metric)	0805 (2012 metric) — Form-factor compatible.; LQM21PN2R2NGCD: Form-factor compatible.; BRC2012T2R2MD: Form-factor compatible.
Current	0.6A	0.95A	0.8A	1.0A	0.95A / 0.8A / 1.0A — Significantly higher current rating.; LQM21PN2R2NGCD: Higher current rating provides more margin.; BRC2012T2R2MD: Higher rated current.
Dcr	0.425Ω	0.18Ω	0.23Ω	0.143Ω	0.18Ω / 0.23Ω / 0.143Ω — Significantly lower DCR improves efficiency.; LQM21PN2R2NGCD: Lower DCR improves efficiency.; BRC2012T2R2MD: Lower DCR improves efficiency.
Temperature	-55°C to +125°C	-40°C to +85°C	-	-40°C to +105°C	-40°C to +85°C / -40°C to +105°C — Narrower operating range is a critical downgrade.; BRC2012T2R2MD: Narrower operating range.
Tolerance	±20%	-	±30%	-	±30% — Wider tolerance may affect circuit precision.
Srf	50MHz	-	40MHz	-	40MHz — Lower SRF may limit high-frequency performance.
Saturation Current	Not Specified	-	-	1.1A	1.1A — Provides specified saturation current, a key advantage.

Application & sourcing insights

Questions & answers

The best alternative depends on your priority. For a close match from the same manufacturer, consider LQM21PN2R2NGCD. For a significant performance upgrade with specified saturation current, BRC2012T2R2MD is an excellent choice, provided its -40°C to +105°C temperature range is acceptable.