Is there a pin-compatible replacement for GJM1555C1H1R0BB01D?

Yes, GJM1555C1H1R0WB01D is a pin-compatible replacement. It has the same 0402 package, 1pF capacitance, 50V rating, and C0G dielectric.

What risks should I check before replacing GJM1555C1H1R0BB01D?

The primary risk is selecting a substitute with a different capacitance value. Since this is a high-Q capacitor, it is likely used in a tuned circuit where even small capacitance changes can affect performance. Always verify the capacitance matches exactly.

GJM1555C1H1R0BB01D Alternatives, Datasheet & Cross Reference | Murata Manufacturing Co., Ltd.

GJM1555C1H1R0BB01D is a 1pF 50V High-Q MLCC in an 0402 package. A pin-compatible upgrade with tighter tolerance is available, while other alternatives require careful review due to different capacitance values.

AI replacement insight

Electrical riskhigh

Using a part with different capacitance will likely cause circuit malfunction in tuned applications.

Package risklow

Many 0402 capacitors are available, making physical replacement straightforward.

Can it be replaced directly?

Yes, GJM1555C1H1R0WB01D is a direct, pin-compatible replacement for GJM1555C1H1R0BB01D, and is considered an upgrade due to its tighter tolerance.

Best replacement path

Use GJM1555C1H1R0WB01D, which is a pin-compatible upgrade with a tighter ±0.05pF tolerance.

Main risk

The main risk when substituting this part is a capacitance mismatch, which can detune RF filters or matching networks, impacting circuit performance.

Recommended alternatives

A pin-compatible replacement with a tighter capacitance tolerance for improved performance.

View details

Alternative comparison matrix

Feature / factor	GJM1555C1H1R0BB01D	GJM1555C1H1R0WB01D	GJM1555C1HR80BB01D	Compatibility / risk
Package	0402 (1005 metric)	0402 (1005 metric)	-	0402 (1005 metric) — Identical package ensures physical compatibility.
Capacitance	1 pF	1 pF	-	0.8 pF — Capacitance is 20% lower than target.
Voltage	50 V	50 V	-	50 V — Voltage rating is identical.
Tolerance	±0.1 pF	±0.05 pF	-	±0.1 pF — Tolerance is identical.
Dielectric	C0G (NP0)	C0G	-	C0G — C0G and C0G (NP0) are functionally identical stable dielectrics.

Application & sourcing insights

Questions & answers

The best alternative is GJM1555C1H1R0WB01D. It is a pin-compatible replacement from the same manufacturer with identical ratings and a tighter tolerance, making it an upgrade.