AC0603FR-0739KL
Yageo
Needs validationlow risk
A strong, pin-compatible match with identical key parameters and an upgrade to automotive grade.
Best Alternatives to FRC0603F3902TS
Searching for a replacement for the FRC0603F3902TS resistor? This 39kΩ, 1% tolerance, 0603 thick film resistor has several potential alternatives, including a pin-compatible match and high-precision upgrade options.
AI replacement insight
Electrical riskmedium
Risk is low for the pin-compatible option, but medium for parametric alternatives that require validating resistance and technology changes.
Package risklow
All suggested alternatives share the same 0603 package, ensuring form-fit compatibility.
Sourcing risklow
Alternatives are available from major manufacturers like Yageo, indicating good supply chain options.
Can it be replaced directly?
Direct replacement for FRC0603F3902TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most direct replacement is Yageo's AC0603FR-0739KL, which is a pin-to-pin match with an upgrade to automotive qualification.
Main risk
The main risk involves selecting an alternative with a slightly different resistance value or a different resistor technology (e.g., Thin Film), which requires circuit validation.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | FRC0603F3902TS | AC0603FR-0739KL | FRC0603F3652TS | RT0603BRD0739K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package ensures form and fit.; FRC0603F3652TS: Identical package ensures form and fit.; RT0603BRD0739K2L: Identical package ensures form and fit. |
| Resistance | 39kΩ | 39kΩ | 36.5kΩ | 39.2kΩ | 39kΩ / 36.5kΩ / 39.2kΩ — Resistance value is identical.; FRC0603F3652TS: Resistance is -6.4% lower than target.; RT0603BRD0739K2L: Resistance is very close (+0.5%). |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Tolerance is identical.; FRC0603F3652TS: Tolerance is identical.; RT0603BRD0739K2L: Tighter tolerance is a performance upgrade. |
| Power | 0.1W | 0.1W | - | - | 0.1W — Power rating is identical. |
| Application | General Purpose | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive grade, an upgrade. |
| Technology | Thick Film | - | - | Thin Film | Thin Film — Technology differs; may affect noise/pulse performance. |
| Tcr | ±100 ppm/°C | - | - | 25 ppm/°C | 25 ppm/°C — Lower TCR provides better stability over temperature. |
Application & sourcing insights
Questions & answers
Verified drop-in options for FRC0603F3902TS 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.