Is there a pin-compatible replacement for GJM1555C1H1R2BB01D?

Yes, several parts like Yageo's CQ0402CRNPO9BN1R2 share the same 0402 package and pinout. However, electrical parameters like tolerance and Q-factor differ, requiring engineering review before substitution.

What risks should I check before replacing GJM1555C1H1R2BB01D?

Key risks include changes in capacitance tolerance, which can affect filter or oscillator performance, and differences in Q-factor (quality factor), which is critical in RF circuits. Always verify the replacement in the target application.

GJM1555C1H1R2BB01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

Murata's GJM1555C1H1R2BB01D is a 1.2pF, 50V High-Q multilayer ceramic capacitor in a 0402 package, ideal for high-frequency RF circuits. Finding a precise replacement requires matching its tight tolerance and High-Q characteristics.

AI replacement insight

Electrical riskmedium

Tolerance and Q-factor differences require validation.

Package risklow

Alternatives share the same 0402 package.

Sourcing risklow

Alternatives from other vendors improve supply chain resilience.

Can it be replaced directly?

No direct drop-in replacement with identical specs has been identified. Alternatives require review, primarily for looser capacitance tolerance.

Best replacement path

Consider Yageo's CQ series for a High-Q alternative, but verify the impact of its looser tolerance.

Main risk

The main risk is performance degradation in sensitive RF or timing circuits due to looser capacitance tolerance or a lower Q-factor.

Recommended alternatives

A cross-vendor High-Q alternative with the same key ratings but a looser capacitance tolerance.

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Alternative comparison matrix

Feature / factor	GJM1555C1H1R2BB01D	CQ0402CRNPO9BN1R2	GRM1555C1H1R2CA01D	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Identical package and pin count.; GRM1555C1H1R2CA01D: Identical package and pin count.
Capacitance	1.2 pF	1.2 pF	1.2 pF	1.2 pF — Capacitance value matches.; GRM1555C1H1R2CA01D: Capacitance value matches.
Voltage	50.0 V	50.0 V	50.0 V	50.0 V — Voltage rating matches.; GRM1555C1H1R2CA01D: Voltage rating matches.
Tolerance	±0.1 pF	±0.25 pF	±0.25 pF	±0.25 pF — Candidate has looser tolerance.; GRM1555C1H1R2CA01D: Candidate has looser tolerance.
Manufacturer	Murata Electronics	Yageo	-	Yageo — Cross-vendor alternative.
Application	GJM (High-Q)	-	GRM (General)	GRM (General) — Candidate is general purpose, target is High-Q (GJM series).
Lifecycle	Active	-	NRND	NRND — Not recommended for new designs.

Application & sourcing insights

Questions & answers

Yageo's CQ0402CRNPO9BN1R2 is a strong functional alternative, also a High-Q type, but has a looser tolerance (±0.25pF). Murata's GRM1555C1H1R2CA01D is a general purpose part with looser tolerance and is not recommended for new designs.