
Yageo
Excellent match from the same automotive series with nearly identical resistance and all key parameters matching.
Yageo's AC0603FR-0722K1L is a 22.1kΩ, 1%, 1/10W automotive-grade 0603 chip resistor. Finding a substitute requires matching its AEC-Q200 qualification, package, and key electrical parameters.
Minimal if using a close resistance match from the same series.
The 0603 package is highly standardized.
Using a non-AEC-Q200 part in an automotive application introduces significant reliability and compliance risk.
Direct replacement for AC0603FR-0722K1L should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most direct path is AC0603FR-0722KL, which is in the same Yageo AC series with a negligible resistance difference.
The main risk is using a non-automotive grade part or a part with significant resistance deviation without circuit analysis.

Yageo
Excellent match from the same automotive series with nearly identical resistance and all key parameters matching.
| Feature / factor | AC0603FR-0722K1L | AC0603FR-0722KL | AC0603DR-0720KL | RC0603FR-0722K6L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 22.1kΩ | 22kΩ | 20kΩ | 22.6kΩ | 22kΩ / 20kΩ / 22.6kΩ — -0.45% deviation, within tolerance.; AC0603DR-0720KL: -9.5% deviation, may be too low.; RC0603FR-0722K6L: +2.26% deviation, outside 1% tolerance. |
| Application | AEC-Q200 | AEC-Q200 | AEC-Q200 | None | AEC-Q200 / None — Both are automotive grade.; AC0603DR-0720KL: matched; RC0603FR-0722K6L: Candidate is general purpose, not automotive grade. |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Same package and pin count.; AC0603DR-0720KL: matched; RC0603FR-0722K6L: matched |
| Power | 1/10W | 1/10W | - | 1/10W | 1/10W — matched; RC0603FR-0722K6L: matched |
| Tolerance | ±1% | ±1% | ±0.5% | - | ±1% / ±0.5% — matched; AC0603DR-0720KL: Tighter tolerance is an upgrade. |
Verified drop-in options for AC0603FR-0722K1L are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.