Is there a pin-compatible replacement for GRM1555C1H391JA01D?

Yes, several pin-compatible replacements exist in the 0402 package. GRM1555C1H391FA01D is a strong option with identical form, fit, and function, plus an improved tolerance.

What risks should I check before replacing GRM1555C1H391JA01D?

The main risk is using a substitute with a different dielectric, like X7R instead of C0G, which can affect circuit performance due to instability. Always verify the dielectric, capacitance, voltage, and package size.

GRM1555C1H391JA01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

The Murata GRM1555C1H391JA01D is a general-purpose 390pF, 50V, C0G ceramic capacitor in a 0402 package. Finding a suitable replacement involves matching these key parameters, with special attention to the stable C0G dielectric.

AI replacement insight

Electrical riskhigh

High risk if substituting with a different dielectric like X7R; low risk if C0G is maintained.

Package risklow

0402 is a standard package with many compatible land patterns.

Can it be replaced directly?

Yes, GRM1555C1H391FA01D is a direct replacement for GRM1555C1H391JA01D, offering an upgrade in tolerance from ±5% to ±1%.

Best replacement path

The safest replacement is another Murata GRM series capacitor with identical or better specifications, such as GRM1555C1H391FA01D, which offers a tighter tolerance.

Main risk

The primary risk is substituting with a capacitor that has a less stable dielectric (e.g., X7R), which can compromise the performance of precision circuits.

Recommended alternatives

A strong substitute with a tighter ±1% tolerance in the same 0402 package.

View details

Alternative comparison matrix

Feature / factor	GRM1555C1H391JA01D	GRM1555C1H391FA01D	GCM1555C1H391JA16D	CC0402KRX7R9BB391	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Identical package ensures form and fit.; GCM1555C1H391JA16D: Identical package ensures form and fit.; CC0402KRX7R9BB391: Package matches, ensuring form and fit.
Capacitance	390 pF	390 pF	390 pF	-	390 pF — Capacitance value is identical.; GCM1555C1H391JA16D: Capacitance value is identical.
Voltage	50 V	50 V	50 V	-	50 V — Voltage rating is identical.; GCM1555C1H391JA16D: Voltage rating is identical.
Dielectric	C0G (NP0)	C0G (NP0)	-	X7R	C0G (NP0) / X7R — Dielectric material is identical, ensuring stable performance.; CC0402KRX7R9BB391: X7R is a Class 2 unstable dielectric, a major functional downgrade from C0G.
Tolerance	±5%	±1%	-	±10%	±1% / ±10% — Tighter tolerance is a direct upgrade.; CC0402KRX7R9BB391: Wider tolerance may not be acceptable.
Application	General Purpose	-	AEC-Q200	-	AEC-Q200 — Automotive grade is more robust than general purpose.
Manufacturer	Murata Electronics	-	-	Yageo	Yageo — Cross-vendor alternative.

Application & sourcing insights

Questions & answers

The GRM1555C1H391FA01D is an excellent alternative from the same series with a tighter ±1% tolerance, making it a direct upgrade for most applications.