
Yageo
Same-size 5.1 kΩ candidate with tighter precision, but technology and AEC evidence differ.
AC0603FR-075K1L is an AEC-Q200 0603 5.1 kΩ thick-film resistor. The listed alternates need FAE review before use.
Some values or film types differ.
0805 and 0402 are not 0603 fits.
Passive resistor, no firmware.
Stock not provided.
Direct replacement for AC0603FR-075K1L should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Check RT0603BRD075K1L for same value and package, then verify AEC-Q200 and thin-film suitability.
Automotive qualification and package fit are the main risks.

Yageo
Same-size 5.1 kΩ candidate with tighter precision, but technology and AEC evidence differ.
| Feature / factor | AC0603FR-075K1L | RT0603BRD075K1L | RC0603FR-074K75L | RC0805FR-075K1L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | - | 0805 — not same pads |
| Pinout | 2 | 2 | - | - | 2 — chip resistor |
| Resistance | 5.1 kΩ | 5.1 kΩ | - | - | 5.1 kΩ — same value |
| Tolerance | ±1% | ±0.1% | - | - | ±1% — same |
| Application | AEC-Q200 thick film | thin film | - | - | thin film — qual not shown |
| Power | 1/10 W | - | 1/10 W | - | 1/10 W — same listed |
| Tcr | ±100 ppm/°C | - | ±100 ppm/°C | - | ±100 ppm/°C — same |
Verified drop-in options for AC0603FR-075K1L 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.