AC0402FR-0739KL
Yageo
Needs validationhigh risk
An AEC-Q200 qualified 39kΩ 0402 resistor with lower precision (±1% tolerance, ±100ppm/°C TCR) than the target.
Best Alternatives to RT0402BRD0739KL
Yageo's RT0402BRD0739KL is a high-precision (0.1%, 25ppm/°C) 39kΩ thin film resistor. Finding a direct replacement requires matching these tight specifications to maintain circuit performance.
AI replacement insight
Electrical riskhigh
Substituting with a lower precision part can cause circuit malfunction or instability.
Package risklow
All candidates use the same 0402 package, ensuring physical compatibility.
Can it be replaced directly?
No exact drop-in replacements were found in this batch. Alternatives exist but require careful review of tolerance, TCR, and resistance value deviations.
Best replacement path
Look for thin film resistors in a 0402 package with 39kΩ resistance, ±0.1% tolerance, and a TCR of 25 ppm/°C or better.
Main risk
The primary risk is substituting a lower-precision (±1%, ±100ppm/°C) thick film resistor, which can affect circuit accuracy and stability.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RT0402BRD0739KL | AC0402FR-0739KL | FRC0402F3902TS | RT0402BRD0740K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 39kΩ | 39kΩ | 39kΩ | 40.2kΩ | 39kΩ / 40.2kΩ / 39.2kΩ — Resistance value matches.; FRC0402F3902TS: Resistance value matches.; RT0402BRD0740K2L: Resistance differs by ~3%.; FRC0402F3922TS: Resistance is very close (~0.5% diff). |
| Tolerance | ±0.1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Significantly weaker precision.; FRC0402F3902TS: Significantly weaker precision.; RT0402BRD0740K2L: Precision matches.; FRC0402F3922TS: Significantly weaker precision. |
| Tcr | 25 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | 25 ppm/°C | ±100 ppm/°C / 25 ppm/°C — Significantly weaker stability.; FRC0402F3902TS: Significantly weaker stability.; RT0402BRD0740K2L: Stability matches.; FRC0402F3922TS: Significantly weaker stability. |
| Application | Commercial | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive qualified. |
| Technology | Thin Film | - | Thick Film | Thin Film | Thick Film / Thin Film — Lower precision technology.; RT0402BRD0740K2L: Technology matches. |
| Package | 0402 | - | 0402 | - | 0402 — Package size matches. |
Application & sourcing insights
Questions & answers
The best alternatives are other thin film resistors with 39kΩ resistance, ±0.1% tolerance, and ≤25 ppm/°C TCR, such as other parts from Yageo's RT series or similar series from other manufacturers.