Is there a pin-compatible replacement for GCM1555C1H821JA16D?

While several parts share the 0402 package, none are confirmed pin-to-pin functional equivalents. Key parameters like capacitance and automotive qualification differ, requiring engineering review.

What risks should I check before replacing GCM1555C1H821JA16D?

Key risks are: 1) using a non-AEC-Q200 part in an automotive design, 2) capacitance mismatch affecting circuit performance, and 3) dielectric mismatch (e.g., C0G vs. X7R) causing instability.

GCM1555C1H821JA16D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

GCM1555C1H821JA16D is an automotive-grade 820pF 50V C0G MLCC in a 0402 package. Finding a direct replacement requires matching its AEC-Q200 qualification and stable C0G dielectric.

AI replacement insight

Sourcing riskhigh

Using a non-AEC-Q200 part in an automotive design is a high compliance and reliability risk.

Electrical riskmedium

Capacitance mismatch can affect filter performance or circuit timing. Dielectric mismatch is a critical failure point.

Package risklow

Many alternatives share the same 0402 package, simplifying physical replacement.

Can it be replaced directly?

No direct drop-in replacement has been identified. Alternatives require review for capacitance deviation and lack of automotive qualification.

Best replacement path

Search for AEC-Q200 qualified, 820pF, 50V, C0G, 0402 capacitors. Non-automotive parts like the GRM series exist but carry risk.

Main risk

The main risks are reliability issues from using a non-automotive part and performance degradation from capacitance or dielectric mismatch.

Recommended alternatives

Alternative with tighter tolerance (±1%), but higher capacitance (1000pF) and not for automotive use.

View details

Alternative comparison matrix

Feature / factor	GCM1555C1H821JA16D	GRM1555C1H102FA01D	GRM1555C1H102JA01D	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	-	0402 (1005 metric) — Same package and pin count.
Dielectric	C0G	C0G (NP0)	-	C0G (NP0) — Matches stable C0G dielectric.
Capacitance	820 pF	1000 pF	-	1000 pF — Capacitance is 22% higher, requires circuit validation.
Tolerance	±5%	±1%	-	±1% — Tighter tolerance is an upgrade.
Application	Automotive (AEC-Q200)	General Purpose	-	General Purpose — Candidate is not AEC-Q200 qualified.
Voltage	50 V	-	50 V	50 V — Voltage rating matches.

Application & sourcing insights

Questions & answers

For non-automotive uses, GRM1555C1H102JA01D is a potential alternative if a +22% capacitance increase is acceptable. For automotive designs, search for other GCM series or AEC-Q200 parts with matching specs.