
Same 1210 package and higher voltage, but the X7S dielectric and lack of AEC-Q200 qualification pose risks.
Finding a replacement for the KEMET C1210C475K5RACAUTO, a 4.7µF 50V 1210 X7R automotive MLCC, involves checking package, dielectric, and grade. While no direct drop-in is found, several functional and parametric alternatives exist.
Most alternatives have smaller packages (1206, 0805), requiring a PCB respin.
Some same-package options use X7S dielectric, which has wider temperature variance than X7R.
Many alternatives are not automotive grade, which may not be acceptable for the target application.
No direct pin-for-pin, automotive-grade replacement was identified. All candidates require engineering review for package, dielectric, or grade differences.
For new designs, consider automotive-grade 0805 parts like TDK's CGA4J1X7R1H475KT0Y0N to save space. For existing boards, review parametric alternatives with different dielectrics, but verify temperature performance.
The main risks are package mismatch requiring board redesign, and dielectric differences (X7S vs. X7R) affecting capacitance over temperature.

Same 1210 package and higher voltage, but the X7S dielectric and lack of AEC-Q200 qualification pose risks.
| Feature / factor | C1210C475K5RACAUTO | C3225X7S2A475KT000N | HMK325C7475KMHPE | CGA4J1X7R1H475KT0Y0N | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1210 (3225 metric) | 1210 (3225 Metric) | 1210 (3225 Metric) | 0805 (2012 metric) | 1210 (3225 Metric) / 0805 (2012 metric) / 0805 (2012) — Package size matches.; HMK325C7475KMHPE: Package size matches.; CGA4J1X7R1H475KT0Y0N: Smaller package requires PCB layout change.; HGC0805R7475K500NSLJ: Significantly smaller package requires PCB layout change. |
| Voltage | 50.0V | 100.0V | 100.0V | 50.0V | 100.0V / 50.0V — Higher voltage rating provides more margin.; HMK325C7475KMHPE: Higher voltage rating provides more margin.; CGA4J1X7R1H475KT0Y0N: Voltage rating matches.; HGC0805R7475K500NSLJ: Voltage rating matches. |
| Dielectric | X7R | X7S | X7S | X7R | X7S / X7R — X7S has wider capacitance variation over temperature (±22%) than X7R (±15%).; HMK325C7475KMHPE: X7S has wider capacitance variation over temperature (±22%) than X7R (±15%).; CGA4J1X7R1H475KT0Y0N: Dielectric characteristics match.; HGC0805R7475K500NSLJ: Dielectric characteristics match. |
| Application | Automotive (AEC-Q200) | Commercial | Commercial | Automotive | Commercial / Automotive — Target is AEC-Q200 qualified, candidate is not.; HMK325C7475KMHPE: Target is AEC-Q200 qualified, candidate is not.; CGA4J1X7R1H475KT0Y0N: Both parts are automotive grade.; HGC0805R7475K500NSLJ: Target is AEC-Q200 qualified, candidate is not. |
For new designs, TDK's CGA4J1X7R1H475KT0Y0N is a strong automotive-grade functional alternative in a smaller 0805 package. For existing layouts, options like TAIYO YUDEN's HMK325C7475KMHPE have the same package but require review due to a different dielectric (X7S).