Is there a pin-compatible replacement for AC0603JRNPO9BN102?

Several parts like Yageo's CC0603KRNPO9BN102 share the 0603 package and are pin-compatible. However, they differ in key parameters like tolerance or automotive qualification, which requires careful review before substitution.

What risks should I check before replacing AC0603JRNPO9BN102?

The main risks are functional failure and reliability issues. Check that the substitute has an NP0/C0G dielectric for stability, and ensure it meets the AEC-Q200 standard if used in an automotive design.

AC0603JRNPO9BN102 Alternatives, Datasheet & Cross Reference | Yageo

Yageo's AC0603JRNPO9BN102 is a 1nF 50V AEC-Q200 qualified NP0 capacitor in an 0603 package, valued for its stability. Finding a substitute requires matching its dielectric type and automotive qualification.

AI replacement insight

Electrical riskhigh

High risk if dielectric type is not matched (e.g., X7R for NP0).

Package risklow

0603 is a standard package, so physical fit is low risk.

Sourcing riskhigh

AEC-Q200 parts have stricter controls; using a commercial part poses reliability and compliance risks.

Can it be replaced directly?

No direct drop-in replacement has been identified that matches all key parameters, including the critical AEC-Q200 qualification. Engineering review is required.

Best replacement path

For non-automotive circuits, GRM1885C2A102JA01D is a strong choice with a voltage upgrade. For automotive use, source another AEC-Q200 NP0 capacitor.

Main risk

Using a part without AEC-Q200 qualification in an automotive design, or using an unstable dielectric (e.g., X7R) where NP0 is specified.

Recommended alternatives

A strong functional match for non-automotive use, with an upgraded 100V rating.

View details

Alternative comparison matrix

Feature / factor	AC0603JRNPO9BN102	GRM1885C2A102JA01D	CC0603KRNPO9BN102	Compatibility / risk
Package	0603 (1608 metric)	0603 (1608 metric)	0603 (1608 metric)	0603 (1608 metric) — Form factor matches.; CC0603KRNPO9BN102: Form factor matches.
Capacitance	1nF	1nF	1nF	1nF — Capacitance matches.; CC0603KRNPO9BN102: Capacitance matches.
Voltage	50V	100V	50V	100V / 50V — Higher voltage rating provides more margin.; CC0603KRNPO9BN102: Voltage rating matches.
Dielectric	NP0 (C0G)	C0G (EIA)	NP0 (C0G)	C0G (EIA) / NP0 (C0G) — C0G is equivalent to NP0.; CC0603KRNPO9BN102: Stable dielectric type matches.
Tolerance	±5%	±5%	±10%	±5% / ±10% — Tolerance matches.; CC0603KRNPO9BN102: Wider tolerance may affect precision circuits.
Application	AEC-Q200	Commercial	Commercial	Commercial — Candidate is not AEC-Q200 qualified.; CC0603KRNPO9BN102: Candidate is not AEC-Q200 qualified.

Application & sourcing insights

Questions & answers

For non-automotive use, Murata's GRM1885C2A102JA01D is a strong option with a higher voltage rating. For automotive applications, a direct replacement that is also AEC-Q200 qualified is strongly recommended.