
Yageo
A functional alternative from the same manufacturer with a wider capacitance tolerance of ±10%.
Finding a substitute for the Yageo CC0402JRX7R9BB122 1.2nF 50V 5% MLCC involves checking key electrical parameters. Alternatives exist, but often require accepting a wider capacitance tolerance of ±10%.
Tolerance relaxation from 5% to 10% requires circuit analysis.
All viable candidates use the standard 0402 package.
No exact drop-in replacement with identical specifications was found in this batch. Alternatives require relaxing the tolerance from ±5% to ±10%.
Use the same manufacturer's wider tolerance part, CC0402KRX7R9BB122, if the circuit can accommodate ±10% tolerance.
The main risk is increased capacitance variance due to wider tolerance (±10% vs ±5%), which could impact circuit performance.

Yageo
A functional alternative from the same manufacturer with a wider capacitance tolerance of ±10%.
| Feature / factor | CC0402JRX7R9BB122 | CC0402KRX7R9BB122 | GCM155R71H122KA37D | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0402 (1005 metric) | 0402 (1005 metric) | 0402 (1005 metric) — Identical package ensures form-fit compatibility.; GCM155R71H122KA37D: Identical package ensures form-fit compatibility. | |
| Capacitance | 1.2 nF | 1.2 nF | 1.2 nF | 1.2 nF — Capacitance value matches the target.; GCM155R71H122KA37D: Capacitance value matches the target. | |
| Voltage | 50 V | 50 V | 50 V | 50 V — Voltage rating is identical.; GCM155R71H122KA37D: Voltage rating is identical. | |
| Tolerance | ±5% | ±10% | ±10% | ±10% — Wider tolerance may affect precision circuits.; GCM155R71H122KA37D: Wider tolerance may affect precision circuits. | |
| Manufacturer | Yageo | Yageo | - | Yageo — Same manufacturer, different tolerance grade. | |
| Application | General Purpose | - | AEC-Q200 | AEC-Q200 — Candidate is automotive grade, target is general purpose. |
The best alternative depends on your circuit's tolerance needs. CC0402KRX7R9BB122 from Yageo is a strong option if ±10% tolerance is acceptable. For automotive use, Murata's GCM155R71H122KA37D is a good candidate, also with ±10% tolerance.