AC0402FR-0720RL
Yageo
Needs validationmedium risk
AEC-Q200 qualified and matches key parameters, but has a lower power rating. Requires engineering review of power budget.
Best Alternatives to ERJ2RKF20R0X
The Panasonic ERJ2RKF20R0X is a 20Ω, 1%, 0.1W, AEC-Q200 qualified 0402 chip resistor. Finding a substitute requires careful attention to matching both the automotive qualification and the 0.1W power rating.
AI replacement insight
Electrical riskhigh
All candidates have a lower power rating (0.0625W vs 0.1W). This can lead to overheating and failure if the circuit dissipates more than 0.0625W.
Package risklow
All candidates match the 0402 package, ensuring physical compatibility on the PCB.
Sourcing riskmedium
Many alternatives are general-purpose and not AEC-Q200 qualified, which may not be acceptable for automotive or high-reliability applications.
Can it be replaced directly?
No direct, drop-in replacement was found. All candidates have a lower power rating than the target ERJ2RKF20R0X, which requires careful engineering review before substitution.
Best replacement path
The Yageo AC0402FR-0720RL is the closest alternative as it is also AEC-Q200 qualified, but it has a lower power rating (0.0625W vs 0.1W).
Main risk
The primary risk is component failure due to overheating, as all potential substitutes have a 37.5% lower power rating than the original part.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | ERJ2RKF20R0X | AC0402FR-0720RL | RT0402BRE0720RL | FRC0402F20R0TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0402 | 0402 | 0402 | 0402 — Package size matches.; RT0402BRE0720RL: Package size matches.; FRC0402F20R0TS: Package size matches.; RTT0222R0FTH: Package size matches. |
| Resistance | 20 Ω | 20 Ω | - | 20 Ω | 20 Ω / 22 Ω — Resistance value matches.; FRC0402F20R0TS: Resistance value matches.; RTT0222R0FTH: Resistance is 10% higher than target. |
| Power | 0.1W | 0.0625W | 0.0625W | 0.0625W | 0.0625W — Candidate has lower power rating, review required.; RT0402BRE0720RL: Candidate has lower power rating.; FRC0402F20R0TS: Candidate has lower power rating, review required.; RTT0222R0FTH: Candidate has lower power rating. |
| Application | AEC-Q200 | AEC-Q200 | - | Not specified | AEC-Q200 / Not specified — Automotive qualification matches.; FRC0402F20R0TS: Target is automotive grade (AEC-Q200), candidate is not. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | 50 ppm/°C | - | ±100 ppm/°C / 50 ppm/°C — Temperature coefficient matches.; RT0402BRE0720RL: Better TCR is an upgrade. |
| Technology | Thick Film | - | Thin Film | - | Thin Film — Different resistor technology may affect performance. |
| Tolerance | ±1% | - | ±0.1% | ±1% | ±0.1% / ±1% — Tighter tolerance is an upgrade.; FRC0402F20R0TS: Tolerance matches. |
Application & sourcing insights
Questions & answers
The best alternative is AC0402FR-0720RL by Yageo because it matches the AEC-Q200 qualification. However, you must verify your design can tolerate its lower 0.0625W power rating, as the original is 0.1W.