Is there a pin-compatible replacement for GCM1555C1H821FA16D?

Yes, parts in the same 0402 package are pin-compatible in form factor. However, no candidates are electrically identical, so they are not drop-in replacements and require engineering review.

What risks should I check before replacing GCM1555C1H821FA16D?

Verify that your circuit can tolerate a different capacitance value (e.g., 910pF instead of 820pF) and a wider tolerance (e.g., ±5% instead of ±1%). Also, ensure any replacement is AEC-Q200 qualified.

GCM1555C1H821FA16D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

GCM1555C1H821FA16D is a high-precision (±1%) 820pF, 50V automotive-grade (AEC-Q200) MLCC in a 0402 package. Finding a direct replacement requires matching its tight tolerance and stable C0G dielectric.

AI replacement insight

Electrical riskhigh

Target's ±1% tolerance is critical. Mismatched capacitance or tolerance can cause circuit malfunction.

Package risklow

All candidates share the 0402 package.

Sourcing riskmedium

High-precision capacitors can have limited availability.

Can it be replaced directly?

No, there are no exact drop-in replacements in this list. All candidates have different capacitance and/or wider tolerance, requiring engineering review.

Best replacement path

Find an AEC-Q200 C0G capacitor with 820pF capacitance and ±1% tolerance. If unavailable, consider automotive parts with different capacitance or wider tolerance, but this requires circuit analysis.

Main risk

The primary risk is substituting with a part that has a different capacitance or wider tolerance, which can affect timing, filtering, or tuning performance. Using a non-C0G dielectric is a critical failure.

Recommended alternatives

Automotive grade alternate with higher capacitance (910pF) and wider tolerance (±5%).

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Alternative comparison matrix

Feature / factor	GCM1555C1H821FA16D	GCM1555C1H911JA16D	GCM1555C1H102JA16J	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Same package and pin count.; GCM1555C1H102JA16J: Same package and pin count.
Voltage	50V	50V	50V	50V — Voltage rating is identical.; GCM1555C1H102JA16J: Voltage rating is identical.
Dielectric	C0G	C0G	C0G	C0G — Dielectric type is identical.; GCM1555C1H102JA16J: Dielectric type is identical.
Capacitance	820 pF	910 pF	1000 pF	910 pF / 1000 pF — Capacitance is ~11% higher.; GCM1555C1H102JA16J: Capacitance is ~22% higher.
Tolerance	±1%	±5%	±5%	±5% — Tolerance is significantly wider.; GCM1555C1H102JA16J: Tolerance is significantly wider.
Application	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200 — Both are automotive grade.; GCM1555C1H102JA16J: Both are automotive grade.

Application & sourcing insights

Questions & answers

The closest alternatives are other GCM-series automotive capacitors like GCM1555C1H911JA16D (910pF, ±5%), but the different capacitance and wider tolerance must be validated for your application.