RC0603FR-0739KL
Yageo
Needs validationlow risk
Yageo RC0603FR-0739KL is a close 39kΩ 0603 candidate for review.
Best Alternatives to 0603WAF3902T5E
0603WAF3902T5E is a 39kΩ ±1% 0603 thick-film resistor. Best candidates match value and package but still need rating review.
AI replacement insight
Electrical riskmedium
relaxed values shift gain/dividers
Package risklow
kept parts list 0603
Firmware risklow
passive resistor
Sourcing riskmedium
some sources need confirmation
Can it be replaced directly?
RC0603FR-0739KL is the closest catalog match, but PDF and power fields need FAE confirmation.
Best replacement path
Start with RC0603FR-0739KL, then review thin-film or relaxed-value options.
Main risk
Resistance changes and power derating can alter circuit behavior.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | 0603WAF3902T5E | RC0603FR-0739KL | RT0603BRD0739KL | RC0603FR-0740K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | - | 0603 — same size |
| Pinout | 2 pins | 2 pins | - | - | 2 pins — chip resistor |
| Resistance | 39kΩ | 39kΩ | - | - | 40.2kΩ — +3.1% |
| Tolerance | ±1% | ±1% | - | - | ±0.1% — tighter |
| Power | 0.1W | 0.1W/field conflict | - | - | 0.1W/field conflict — ES says 1/10W |
| Tcr | ±100ppm/C | - | 25ppm/C | - | 25ppm/C — lower drift |
| Application | thick film | - | thin film | - | thin film — pulse/noise differs |
Application & sourcing insights
Questions & answers
Verified drop-in options for 0603WAF3902T5E 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.