FRC0603F4991TS
FOJAN
Needs validationlow risk
FOJAN FRC0603F4991TS closely matches the 4.99kΩ 0603 thick-film target.
Best Alternatives to 0603WAF4991T5E
0603WAF4991T5E is a 4.99kΩ ±1% 0.1W 0603 thick-film resistor. Several catalog matches are close, but PDF and derating checks remain required.
AI replacement insight
Electrical riskmedium
check voltage, overload and derating
Package risklow
kept parts are 0603
Firmware risklow
passive resistor only
Sourcing riskmedium
some product URLs or PDFs need review
Can it be replaced directly?
FRC0603F4991TS is the closest catalog match, pending FAE review.
Best replacement path
Prefer same 4.99kΩ, ±1%, 0.1W, 0603 thick-film parts before precision thin-film options.
Main risk
Voltage, overload and power derating evidence is incomplete on several candidates.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | 0603WAF4991T5E | FRC0603F4991TS | RTT035001FTP | RT0603BRD074K99L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | - | 0603 — same size |
| Pinout | 2 terminals | 2 terminals | - | - | 2 terminals — chip resistor |
| Resistance | 4.99kΩ | 4.99kΩ | - | - | 5.00kΩ — +0.2% |
| Tolerance | ±1% | ±1% | - | - | ±1% — same class |
| Power | 0.1W | 0.1W | - | - | 0.1W — verify derating |
| Voltage | 75V work | 75V work | - | - | 75V work — overload missing |
| Tcr | not stated | - | - | 25ppm/°C | — |
| Application | Thick film | - | - | Thin film | — |
Application & sourcing insights
Questions & answers
Verified drop-in options for 0603WAF4991T5E 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.