
Yageo
A strong functional alternative with higher voltage, but in a slightly larger 0805 package.
Finding a substitute for the Yageo CC0603KRX7RABB102, a 1nF 200V 0603 MLCC, requires careful attention to package size. While many parts match electrically, physical fit is the primary challenge for a drop-in replacement.
All candidates are larger than the 0603 target, requiring PCB layout changes.
All candidates meet or exceed the target's key electrical ratings (voltage, capacitance).
No, a direct drop-in replacement was not identified in this analysis. All candidates have different physical packages requiring board layout verification.
Search for capacitors with 1nF capacitance, X7R dielectric, voltage ≥ 200V, and a 0603 package.
Physical incompatibility due to all candidates having a larger package size than the target's 0603 footprint.

Yageo
A strong functional alternative with higher voltage, but in a slightly larger 0805 package.
| Feature / factor | CC0603KRX7RABB102 | CC0805KRX7RYBB102 | CC1206JKX7RDBB102 | CC1812KKX7RDBB102 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 metric) | 0805 (2012 metric) | 1206 (3216 metric) | 1812 (4532 metric) | 0805 (2012 metric) / 1206 (3216 metric) / 1812 (4532 metric) — Candidate is larger (0805); may not fit 0603 pads.; CC1206JKX7RDBB102: Candidate is larger and not a drop-in replacement.; CC1812KKX7RDBB102: Candidate is much larger and not a drop-in replacement.; GRM31BR73A102KW01L: Candidate is much larger and not a drop-in replacement. |
| Voltage | 200V | 250V | 2000V | 2000V | 250V / 2000V / 1000V — Higher voltage rating is an upgrade.; CC1206JKX7RDBB102: Significantly higher voltage rating.; CC1812KKX7RDBB102: Candidate has a significantly higher voltage rating.; GRM31BR73A102KW01L: Candidate has a significantly higher voltage rating. |
| Capacitance | 1nF / ±10% | 1nF / ±10% | - | 1nF / ±10% | 1nF / ±10% — Capacitance and tolerance match.; CC1812KKX7RDBB102: Capacitance and tolerance match.; GRM31BR73A102KW01L: Capacitance and tolerance match. |
| Tolerance | ±10% | - | ±5% | - | ±5% — Tighter tolerance is an upgrade. |
| Dielectric | X7R | - | - | - | X7R — Dielectric material matches. |
The best alternative is likely CC0805KRX7RYBB102, which has a higher voltage rating (250V) and is the closest in size (0805). However, you must verify it fits your 0603 PCB pads.