FRC0402F3901TS
FOJAN
Needs validationhigh risk
Parametrically similar general-purpose resistor but lacks the target's critical AEC-Q200 automotive qualification.
Best Alternatives to AC0402FR-073K9L
AC0402FR-073K9L is an automotive-grade 3.9kΩ resistor. Finding a substitute requires matching its electrical specs, 0402 package, and critically, the AEC-Q200 qualification for reliability in vehicle systems.
AI replacement insight
Electrical riskhigh
Using a non-AEC-Q200 part in an automotive application poses a high reliability risk.
Package risklow
Package is a standard 0402, so physical fit is not a primary concern.
Can it be replaced directly?
No direct drop-in replacement has been identified, as all reviewed candidates lack the target's critical AEC-Q200 automotive qualification.
Best replacement path
Find an alternative 3.9kΩ, 1%, 1/16W, 0402 resistor that is also AEC-Q200 qualified, ideally from Yageo's 'AC' series.
Main risk
Using a non-qualified component in an automotive system can lead to premature failure and reliability issues.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | AC0402FR-073K9L | FRC0402F3901TS | RT0402BRD073K9L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 — Package size matches.; RT0402BRD073K9L: Package size matches. | |
| Application | AEC-Q200 | None | None | None — Candidate is not AEC-Q200 qualified.; RT0402BRD073K9L: Candidate is not AEC-Q200 qualified. | |
| Resistance | 3.9 kΩ | 3.9 kΩ | - | 3.9 kΩ — Resistance value matches. | |
| Tolerance | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Tolerance matches.; RT0402BRD073K9L: Candidate has tighter tolerance. | |
| Power | 1/16 W | 1/16 W | - | 1/16 W — Power rating matches. | |
| Technology | Thick Film | - | Thin Film | Thin Film — Different resistor technology may affect performance. | |
| Tcr | ±100 ppm/°C | - | 25 ppm/°C | 25 ppm/°C — Candidate has better temperature stability. |
Application & sourcing insights
Questions & answers
For non-automotive use, FRC0402F3901TS is parametrically similar. For automotive use, a replacement must be AEC-Q200 qualified; search for another part in Yageo's 'AC' series.