Is there a pin-compatible replacement for GRM1555C1H222JA01D?

Pin-compatible parts exist, like GRM155R71H222JA01J, but they use an X7R dielectric instead of C0G, which is a significant performance difference and requires engineering validation.

What risks should I check before replacing GRM1555C1H222JA01D?

The main risk is the dielectric type. Replacing a C0G (Class I) capacitor with an X7R (Class II) can cause issues in timing, filtering, or tuning circuits due to changes in capacitance with temperature, DC bias, and aging.

GRM1555C1H222JA01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Finding a substitute for the Murata GRM1555C1H222JA01D 2.2nF 50V C0G 0402 capacitor requires careful attention to the dielectric material. While some options match the package, they often use a less stable X7R dielectric, which can impact circuit performance.

AI replacement insight

Electrical riskhigh

Substituting C0G with X7R dielectric is a major performance downgrade.

Package riskmedium

Some functional alternatives are in different package sizes, requiring a PCB respin.

Sourcing riskmedium

C0G capacitors in this range can have availability constraints.

Can it be replaced directly?

No direct pin-to-pin replacement with identical key parameters has been identified. Alternatives require compromises on dielectric performance or package size.

Best replacement path

For performance-critical applications, find another 2.2nF, 50V, C0G capacitor in an 0402 package. If unavailable, consider a board redesign for a larger part like GCM1885C1H222FA16D.

Main risk

The primary risk is substituting the stable C0G dielectric with a less stable X7R type, which affects capacitance over temperature, voltage, and time.

Recommended alternatives

Functional alternative with same C0G dielectric and tighter tolerance, but in a larger 0603 package.

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Alternative comparison matrix

Feature / factor	GRM1555C1H222JA01D	GCM1885C1H222FA16D	GRM155R71H222JA01J	AC0402KRX7R9BB222	Compatibility / risk
Package	0402 (1005 metric)	0603 (1608 Metric)	0402 (1005 metric)	0402 (1005 metric)	0603 (1608 Metric) / 0402 (1005 metric) — Larger package, not a drop-in replacement.; GRM155R71H222JA01J: Same package and pin count.; AC0402KRX7R9BB222: Same package and pin count.
Tolerance	±5%	±1%	±5%	±10%	±1% / ±5% / ±10% — Tighter tolerance is an upgrade.; GRM155R71H222JA01J: matched; AC0402KRX7R9BB222: Wider tolerance may affect circuit precision.
Dielectric	C0G	C0G	X7R	X7R	C0G / X7R — matched; GRM155R71H222JA01J: Weaker stability over temp, voltage, and time.; AC0402KRX7R9BB222: Weaker stability over temp, voltage, and time.
Capacitance	2.2 nF	2.2 nF	2.2 nF	2.2 nF	2.2 nF — matched; GRM155R71H222JA01J: matched; AC0402KRX7R9BB222: matched
Voltage	50 V	50 V	50 V	50 V	50 V — matched; GRM155R71H222JA01J: matched; AC0402KRX7R9BB222: matched

Application & sourcing insights

Questions & answers

If board space allows, GCM1885C1H222FA16D is a strong functional alternative in a 0603 package. If the 0402 package is required, any alternative needs careful review, as they likely involve a performance downgrade.