CC0603JRX7R9BB221
Yageo
Needs validationmedium risk
Form-fit compatible with tighter tolerance, but capacitance is nearly double the target.
Best Alternatives to CC0603KRX7R9BB121
Yageo's CC0603KRX7R9BB121 is a general-purpose 120pF, 50V, 0603 MLCC. While no direct drop-in replacements have been identified, several parametric alternatives exist that may be suitable after engineering review.
AI replacement insight
Electrical riskmedium
All candidates have different capacitance, requiring circuit validation.
Package risklow
All kept candidates use the same 0603 package, ensuring physical fit.
Can it be replaced directly?
No, there are no direct, one-to-one replacements for CC0603KRX7R9BB121 among the candidates reviewed. All options have different capacitance or dielectric properties.
Best replacement path
Evaluate candidates from the same Yageo 'CC' series with matching X7R dielectric, but carefully validate the impact of different capacitance values.
Main risk
The primary risk is capacitance mismatch, which can affect circuit timing, filtering, or stability. Some candidates also have a different dielectric (C0G vs. X7R).
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | CC0603KRX7R9BB121 | CC0603JRX7R9BB221 | CC0603KRX7R0BB221 | CC0603KRX7R9BB181 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 metric) | 0603 (1608 metric) | 0603 (1608 metric) | 0603 (1608 metric) | 0603 (1608 metric) — Identical package ensures physical compatibility.; CC0603KRX7R0BB221: Identical package ensures physical compatibility.; CC0603KRX7R9BB181: Identical package ensures physical compatibility.; VJ0603A101FXACW1BC: Identical package ensures physical compatibility. |
| Voltage | 50.0V | 50.0V | 100.0V | 50.0V | 50.0V / 100.0V — Voltage rating matches the target.; CC0603KRX7R0BB221: Higher voltage rating provides more margin.; CC0603KRX7R9BB181: Voltage rating matches the target. |
| Capacitance | 120.0pF | 220.0pF | 220.0pF | 180.0pF | 220.0pF / 180.0pF / 100.0pF — Capacitance is significantly higher.; CC0603KRX7R0BB221: Capacitance is significantly higher.; CC0603KRX7R9BB181: Capacitance is 50% higher than target.; VJ0603A101FXACW1BC: Capacitance is lower than target. |
| Tolerance | 10.0% | 5.0% | - | 10.0% | 5.0% / 10.0% / 1.0% — Tighter tolerance is an upgrade.; CC0603KRX7R9BB181: Tolerance matches the target.; VJ0603A101FXACW1BC: Much tighter tolerance is an upgrade. |
| Dielectric | X7R | - | X7R | X7R | X7R / C0G (NP0) — Dielectric material matches.; CC0603KRX7R9BB181: Dielectric material matches.; VJ0603A101FXACW1BC: C0G is stable (Class 1) vs X7R (Class 2). |
Application & sourcing insights
Questions & answers
There is no single 'best' alternative. Candidates like CC0603KRX7R9BB181 offer the same package and electrical ratings but with higher capacitance (180pF). Suitability depends on your circuit's tolerance for this change.