Is there a pin-compatible replacement for GRM1555C1H391FA01D?

Yes, several parts like GRM1555C1H391JA01D share the same 0402 package and are pin-compatible. However, they are not electrically identical. You must review the tolerance and other parameters before substitution.

What risks should I check before replacing GRM1555C1H391FA01D?

The main risks are electrical. Check the capacitance tolerance, as most alternatives are wider (e.g., ±5% vs ±1%). Also, verify the dielectric type; avoid replacing a stable C0G with an unstable X7R unless the application is non-critical decoupling.

GRM1555C1H391FA01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Find and compare alternatives for the Murata GRM1555C1H391FA01D, a 390pF 50V 1% C0G capacitor in an 0402 package. This page analyzes potential substitutes, highlighting key differences in tolerance and dielectric type to ensure circuit performance.

AI replacement insight

Electrical riskmedium

Wider tolerance (±5% vs ±1%) in the best candidates requires circuit analysis.

Electrical riskhigh

Some candidates use X7R dielectric instead of C0G, which is a critical functional downgrade.

Package risklow

All viable candidates share the same 0402 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, 1-to-1 replacement with identical specifications was found. The closest options involve a wider capacitance tolerance, which requires engineering review.

Best replacement path

The closest alternatives are from Murata's GRM series, like GRM1555C1H391JA01D, which matches all key parameters except for a wider tolerance (±5%).

Main risk

The primary risk is a loss of precision. The target has a ±1% tolerance, while the closest substitutes have ±5% tolerance. This can affect the performance of sensitive analog circuits, filters, or timing applications.

Recommended alternatives

A 0402 390pF 50V C0G capacitor from the same manufacturer, but with a wider ±5% tolerance.

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Alternative comparison matrix

Feature / factor	GRM1555C1H391FA01D	GRM1555C1H391JA01D	GCM1555C1H391JA16D	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Identical package ensures form and fit compatibility.; GCM1555C1H391JA16D: Identical package ensures form and fit compatibility.
Voltage	50.0V	50.0V	-	50.0V — Voltage rating matches the target.
Capacitance	390pF	390pF	-	390pF — Capacitance value is identical.
Dielectric	C0G (NP0)	C0G (NP0)	C0G	C0G (NP0) — Dielectric type matches, ensuring similar temperature stability.; GCM1555C1H391JA16D: Dielectric type matches.
Tolerance	±1.0%	±5.0%	±5.0%	±5.0% — Candidate has a wider tolerance, which may not be suitable for precision circuits.; GCM1555C1H391JA16D: Candidate has a wider tolerance.
Application	General Purpose	-	AEC-Q200	AEC-Q200 — Candidate is automotive grade, which may be an upgrade or irrelevant.

Application & sourcing insights

Questions & answers

The best alternative is likely GRM1555C1H391JA01D. It matches the manufacturer, series, package, capacitance, voltage, and dielectric, but has a wider tolerance of ±5% compared to the target's ±1%.