Is there a pin-compatible replacement for GCM155R71H122KA37D?

Yageo's CC0402KRX7R9BB122 is physically and electrically pin-compatible, but it is not a direct drop-in replacement for automotive use because it lacks AEC-Q200 qualification.

What risks should I check before replacing GCM155R71H122KA37D?

The main risk is reliability. The target part is AEC-Q200 qualified for automotive environments. Using a general-purpose substitute in such an application could lead to component failure due to temperature, vibration, or other stresses.

GCM155R71H122KA37D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Murata's GCM155R71H122KA37D is a 1.2nF 50V automotive-grade ceramic capacitor. Finding a substitute requires careful attention to the AEC-Q200 qualification, as general-purpose parts may not meet reliability standards.

AI replacement insight

Package risklow

Candidates share the same 0402 package.

Electrical riskhigh

Using a non-AEC-Q200 part in an automotive application poses a high reliability risk.

Sourcing risklow

General purpose capacitors are widely available.

Can it be replaced directly?

No direct, AEC-Q200 qualified, pin-compatible replacement was found. Yageo CC0402KRX7R9BB122 is a functional match for non-automotive use cases only.

Best replacement path

For non-automotive designs, Yageo CC0402JRX7R9BB122 is a strong option with tighter tolerance. For automotive use, a new search for an AEC-Q200 qualified part is required.

Main risk

The primary risk is using a non-automotive qualified capacitor in an application requiring AEC-Q200 reliability, which could lead to premature failure.

Recommended alternatives

Offers tighter tolerance (±5%) but lacks the target's automotive AEC-Q200 qualification.

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Alternative comparison matrix

Feature / factor	GCM155R71H122KA37D	CC0402JRX7R9BB122	CC0402KRX7R9BB122	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Same package and pin count.; CC0402KRX7R9BB122: Same package and pin count.
Voltage	50.0 V	50.0 V	50.0 V	50.0 V — Voltage rating is identical.; CC0402KRX7R9BB122: Voltage rating is identical.
Tolerance	±10.0%	±5.0%	±10.0%	±5.0% / ±10.0% — Tighter tolerance is an upgrade.; CC0402KRX7R9BB122: Tolerance is identical.
Application	AEC-Q200	General Purpose	General Purpose	General Purpose — Candidate is not automotive grade.; CC0402KRX7R9BB122: Candidate is not automotive grade.
Capacitance	1.2 nF	-	1.2 nF	1.2 nF — Capacitance is identical.

Application & sourcing insights

Questions & answers

For non-automotive applications, the best alternative is Yageo's CC0402JRX7R9BB122, which offers a tighter ±5% tolerance. If the application requires AEC-Q200, a direct replacement is not available among the candidates.