
RALEC
A 20kΩ 1% 0402 resistor; lacks AEC-Q200 qualification. Suitable for general-purpose, non-automotive applications.
Finding a substitute for the AEC-Q200 qualified CRCW040220K0FKED 20kΩ resistor involves checking key parameters. While several 0402 resistors offer similar resistance, tolerance, and power, qualification for automotive use is a critical difference.
Target is AEC-Q200 qualified; candidates are not, posing a reliability risk in automotive contexts.
All candidates match the 0402 package, ensuring physical compatibility.
No direct drop-in replacement has been identified, as all candidates lack the target's AEC-Q200 qualification. User verification is essential.
For non-automotive applications, WR04X2002FTL is a strong candidate with matching resistance and tolerance. For automotive use, a different AEC-Q200 qualified part is required.
The primary risk is using a non-AEC-Q200 qualified part in an automotive or high-reliability application where it is required.

RALEC
A 20kΩ 1% 0402 resistor; lacks AEC-Q200 qualification. Suitable for general-purpose, non-automotive applications.
| Feature / factor | CRCW040220K0FKED | RTT022002FTH | WR04X2002FTL | FRC0402J203 TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Package size matches.; WR04X2002FTL: Package size matches.; FRC0402J203 TS: Package size matches.; SCR0402F21K: Package size matches. |
| Resistance | 20kΩ | 20kΩ | 20kΩ | 20kΩ | 20kΩ / 21kΩ — Resistance value matches.; WR04X2002FTL: Resistance value matches.; FRC0402J203 TS: Resistance value matches.; SCR0402F21K: Resistance differs by +5%. Circuit analysis is required. |
| Tolerance | ±1% | ±1% | ±1% | ±5% | ±1% / ±5% — Tolerance matches.; WR04X2002FTL: Tolerance matches.; FRC0402J203 TS: Wider tolerance is a downgrade and may not be suitable for precision circuits.; SCR0402F21K: Tolerance matches. |
| Power | 0.063W | 0.0625W | 0.0625W | - | 0.0625W — Slightly lower power rating, may require derating analysis.; WR04X2002FTL: Slightly lower power rating, may require derating analysis. |
| Application | AEC-Q200 | Not specified | Not specified | Not specified | Not specified — Candidate is not AEC-Q200 qualified, unlike the target.; WR04X2002FTL: Candidate is not AEC-Q200 qualified, unlike the target.; FRC0402J203 TS: Candidate is not AEC-Q200 qualified.; SCR0402F21K: Candidate is not AEC-Q200 qualified. |
For general use, WR04X2002FTL offers the same resistance and tolerance in an 0402 package. However, it lacks the target's AEC-Q200 qualification, making it unsuitable for automotive applications without further validation.