Is there a pin-compatible replacement for GJM1555C1H5R1BB01D?

Several parts share the 0402 package, making them physically compatible. However, no part is a guaranteed electrical pin-to-pin replacement without review, due to differences in application series (high-Q) and tolerance.

What risks should I check before replacing GJM1555C1H5R1BB01D?

The main risk is using a general-purpose capacitor instead of a high-Q one, which can degrade RF performance. Also check for differences in capacitance and tolerance, as even small changes can affect sensitive circuits.

GJM1555C1H5R1BB01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Finding a substitute for the Murata GJM1555C1H5R1BB01D 5.1pF high-Q capacitor requires careful matching of its RF performance. This guide reviews alternatives to help you make an informed decision.

AI replacement insight

Electrical riskhigh

Substituting a general-purpose capacitor for a high-Q part can impact circuit performance, especially in RF applications.

Package risklow

Multiple candidates are available in the same 0402 package.

Can it be replaced directly?

No exact drop-in replacement has been verified. The closest candidate, GJM1555C1H5R0BB01D, has a slightly lower capacitance of 5.0pF that requires engineering review.

Best replacement path

The closest alternative is GJM1555C1H5R0BB01D from the same Murata GJM series, which has a minor capacitance difference (5.0pF vs 5.1pF).

Main risk

The primary risk is substituting the high-Q (GJM series) target with a general-purpose capacitor, which can degrade performance in RF circuits.

Recommended alternatives

A strong alternative from the same manufacturer and high-Q series with a minor capacitance difference.

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Alternative comparison matrix

Feature / factor	GJM1555C1H5R1BB01D	GJM1555C1H5R0BB01D	CC0402CRNPO9BN5R1	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 Metric)	0402 (1005 metric)	0402 (1005 Metric) / 0402 (1005 metric) — Form factor matches.; CC0402CRNPO9BN5R1: Form factor matches.
Capacitance	5.1pF	5.0pF	5.1pF	5.0pF / 5.1pF — Slightly lower capacitance.; CC0402CRNPO9BN5R1: Capacitance matches.
Tolerance	±0.1pF	±0.1pF	±0.25pF	±0.1pF / ±0.25pF — Tolerance matches.; CC0402CRNPO9BN5R1: Tolerance is looser.
Voltage	50V	50V	-	50V — Voltage rating matches.
Application	GJM (High-Q)	GJM (High-Q)	General Purpose	GJM (High-Q) / General Purpose — Application series matches.; CC0402CRNPO9BN5R1: Not a high-Q series.

Application & sourcing insights

Questions & answers

The best alternative is Murata's GJM1555C1H5R0BB01D. It is from the same high-Q series and has nearly identical specifications, with only a minor 0.1pF difference in capacitance.