AC0402FR-0751KL
Yageo
Needs validationlow risk
Strong match from the same manufacturer with identical key parameters and AEC-Q200 qualification.
Best Alternatives to AF0402FR-0751KL
Finding a substitute for the Yageo AF0402FR-0751KL 51kΩ 1% AEC-Q200 resistor involves matching package, resistance, and tolerance. Key considerations include automotive qualification and anti-sulfuration for reliability.
AI replacement insight
Electrical riskhigh
Using parts with incorrect resistance or wider tolerance can cause circuit malfunction.
Sourcing riskhigh
Substituting a general-purpose part for an AEC-Q200 qualified one can lead to field failures in automotive environments.
Package risklow
Most candidates share the same 0402 package, minimizing physical layout issues.
Can it be replaced directly?
Direct replacement for AF0402FR-0751KL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The Yageo AC0402FR-0751KL is the strongest candidate, sharing the same manufacturer, key electrical parameters, and automotive qualification.
Main risk
The main risk is using a non-automotive grade resistor in an application that requires AEC-Q200 reliability, leading to potential premature failure.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | AF0402FR-0751KL | AC0402FR-0751KL | RT0402BRD0751KL | RC-02K5112FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Same package size and pinout.; RT0402BRD0751KL: Same package size.; RC-02K5112FT: Same package size. |
| Resistance | 51 kΩ | 51 kΩ | - | 51.1 kΩ | 51 kΩ / 51.1 kΩ — Resistance values match.; RC-02K5112FT: Slightly different resistance value. |
| Tolerance | ±1% | ±1% | ±0.1% | - | ±1% / ±0.1% — Tolerance values match.; RT0402BRD0751KL: Tighter tolerance is an upgrade. |
| Power | 1/16 W | 1/16 W | - | - | 1/16 W — Power ratings match. |
| Application | AEC-Q200 | AEC-Q200 | Not specified | Not specified | AEC-Q200 / Not specified — Both parts are automotive grade.; RT0402BRD0751KL: Candidate is not specified as AEC-Q200.; RC-02K5112FT: Candidate is not specified as AEC-Q200. |
| Tcr | ±100 ppm/°C | - | 25 ppm/°C | - | 25 ppm/°C — Lower TCR is an upgrade. |
| Technology | Thick Film | - | Thin Film | - | Thin Film — Different resistor technology may affect noise or pulse handling. |
Application & sourcing insights
Questions & answers
Verified drop-in options for AF0402FR-0751KL 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.