Is there a pin-compatible replacement for GJM1555C1H6R0WB01D?

Several candidates like GJM1555C1H6R0BB01D share the same 0402 package and are physically pin-compatible. However, none are verified as direct drop-in replacements due to differences in electrical parameters, primarily capacitance tolerance. Engineering review is required to confirm functional compatibility.

What risks should I check before replacing GJM1555C1H6R0WB01D?

The main risks are electrical. First, check the capacitance tolerance; a looser tolerance can detune sensitive RF circuits. Second, verify the capacitor's series (e.g., GJM for RF vs. GCM/GRM for general use), as a non-RF part will likely have poor high-frequency performance (lower Q-factor, higher ESR).

GJM1555C1H6R0WB01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

The Murata GJM1555C1H6R0WB01D is a high-performance 6.0pF 50V RF capacitor in an 0402 package, distinguished by its very tight ±0.05pF tolerance. Finding a direct replacement requires careful attention to both tolerance and RF characteristics to ensure performance.

AI replacement insight

Electrical riskhigh

Target's tight tolerance (±0.05pF) is critical for RF. Most alternatives are looser, risking circuit detuning.

Package risklow

All viable candidates use the same 0402 package, ensuring form/fit compatibility.

Sourcing riskmedium

While alternatives exist, finding one that matches the tight tolerance and RF performance may be difficult.

Can it be replaced directly?

No exact drop-in replacement has been identified. All suitable alternatives have looser capacitance tolerance or are from different application series, requiring engineering review before use.

Best replacement path

The closest alternative is GJM1555C1H6R0BB01D from the same Murata GJM series, but it has a slightly looser tolerance of ±0.1pF which requires engineering validation.

Main risk

The primary risk is degradation of RF performance (e.g., frequency shift, lower Q-factor) due to looser capacitance tolerance or using a non-RF-grade capacitor.

Recommended alternatives

A parametric alternative from the same Murata GJM series with a slightly wider capacitance tolerance.

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Alternative comparison matrix

Feature / factor	GJM1555C1H6R0WB01D	GJM1555C1H6R0BB01D	GCM1555C1H6R0BA16D	CC0402CRNPO9BN6R0	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric)	0402 (1005 metric) — Identical package and pinout.; GCM1555C1H6R0BA16D: Identical package.; CC0402CRNPO9BN6R0: Identical package.
Voltage	50.0V	50.0V	-	-	50.0V — Voltage rating matches.
Capacitance	6.0pF	6.0pF	-	-	6.0pF — Capacitance value matches.
Tolerance	±0.05pF	±0.1pF	±0.1pF	±0.25pF	±0.1pF / ±0.25pF — Looser tolerance may affect RF tuning.; GCM1555C1H6R0BA16D: Looser tolerance.; CC0402CRNPO9BN6R0: Significantly looser tolerance.
Application	GJM (High-Frequency)	GJM (High-Frequency)	GCM (Automotive)	General Purpose	GJM (High-Frequency) / GCM (Automotive) / General Purpose — Both are from the same RF-optimized series.; GCM1555C1H6R0BA16D: Not optimized for RF; check Q/ESR.; CC0402CRNPO9BN6R0: Not specified for RF; performance unknown.
Electrical	6.0pF, 50V	-	6.0pF, 50V	6.0pF, 50V	6.0pF, 50V — Capacitance and voltage match.; CC0402CRNPO9BN6R0: Capacitance and voltage match.
Manufacturer	Murata Electronics	-	-	Yageo	Yageo — Cross-vendor alternative.

Application & sourcing insights

Questions & answers

The best alternative is likely GJM1555C1H6R0BB01D. It is from the same Murata high-frequency GJM series with identical capacitance and voltage, but has a slightly looser tolerance of ±0.1pF compared to the original's ±0.05pF. You must verify if this tolerance is acceptable for your circuit.