
Murata Electronics
Automotive grade alternative with lower capacitance and different dielectric. Requires engineering review.
Reviewing alternatives for the Murata GCM155C71A684KE38D, a 0.68µF 10V 0402 automotive MLCC. Key considerations for replacements include capacitance value, dielectric type, and AEC-Q200 qualification.
Capacitance mismatch is significant in all candidates.
All candidates share the same 0402 package.
Finding an exact match may be difficult; parametric relaxation is likely needed.
No direct pin-to-pin replacements were found. All candidates have different capacitance or dielectric properties requiring engineering review.
Consider automotive-grade (AEC-Q200) capacitors in a 0402 package with X7S or better dielectric and a capacitance value as close to 0.68µF as possible.
The main risk is circuit malfunction due to mismatched capacitance, which can affect filter performance or timing, and using non-automotive parts.

Murata Electronics
Automotive grade alternative with lower capacitance and different dielectric. Requires engineering review.
| Feature / factor | GCM155C71A684KE38D | GRT155R71A474KE01D | GRM155C71A105KE11D | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 Metric) | 0402 (1005 Metric) | 0402 (1005 Metric) | 0402 (1005 Metric) — Form and fit match.; GRM155C71A105KE11D: Form and fit match. | |
| Capacitance | 0.68 µF | 0.47 µF | 1.0 µF | 0.47 µF / 1.0 µF — Significantly lower capacitance.; GRM155C71A105KE11D: Significantly higher capacitance. | |
| Voltage | 10 V | 10 V | 10 V | 10 V — Voltage rating matches.; GRM155C71A105KE11D: Voltage rating matches. | |
| Dielectric | X7S | X7R | X7S | X7R / X7S — Different dielectric, may have different stability.; GRM155C71A105KE11D: Dielectric type matches. | |
| Application | Automotive (GCM) | Automotive (GRT) | General (GRM) | Automotive (GRT) / General (GRM) — AEC-Q200 qualified.; GRM155C71A105KE11D: Not automotive grade. |
No ideal alternative was found. Candidates like GRT155R71A474KE01D are automotive-grade but have lower capacitance (0.47µF), requiring circuit analysis before use.