FRH0603D4423TS
FOJAN
Needs validationlow risk
A potential pin-to-pin match with identical resistance and package, plus an improved tolerance of ±0.5%.
Best Alternatives to RS-03K4423FT
Reviewing alternatives for the RS-03K4423FT, a 442kΩ 1% 0.1W 0603 thick film resistor. Key considerations for replacement are matching resistance, power rating, and package size.
AI replacement insight
Electrical riskmedium
Resistance mismatch in parametric alternatives requires circuit analysis.
Package risklow
All suggested candidates use the same 0603 package.
Can it be replaced directly?
Yes, FRH0603D4423TS by FOJAN is a potential pin-to-pin replacement, offering identical resistance, power, and package with a tighter tolerance of ±0.5%. However, conflicting power data requires verification.
Best replacement path
FRH0603D4423TS is a strong candidate, matching key parameters with improved tolerance. Parametric alternatives with slightly different resistance values are also available.
Main risk
The primary risk is using a substitute with a different resistance value, which can alter circuit behavior. Verification of the substitute's impact on the application is crucial.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-03K4423FT | FRH0603D4423TS | RS-03K4303FT | RS-03K4533FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Matches target package.; RS-03K4303FT: Matches target package.; RS-03K4533FT: Matches target package.; RT0603BRD07470KL: Matches target package. |
| Resistance | 442kΩ | 442kΩ | 430kΩ | 453kΩ | 442kΩ / 430kΩ / 453kΩ / 470kΩ — Identical nominal resistance.; RS-03K4303FT: Resistance deviates by -2.7%.; RS-03K4533FT: Resistance deviates by +2.5%.; RT0603BRD07470KL: Resistance deviates by +6.3%. |
| Tolerance | ±1.0% | ±0.5% | ±1% | ±1% | ±0.5% / ±1% / ±0.1% — Tighter tolerance is a safe upgrade.; RS-03K4303FT: Tolerance matches.; RS-03K4533FT: Tolerance matches.; RT0603BRD07470KL: Tighter tolerance is a safe upgrade. |
| Power | 0.1W | 0.1W | 0.1W | 0.1W | 0.1W — Assumed 0.1W from summary; source data has conflict (1.0W).; RS-03K4303FT: Power rating matches.; RS-03K4533FT: Power rating matches. |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | - | - | ±100 ppm/°C / 25 ppm/°C — Temperature coefficient matches.; RT0603BRD07470KL: Lower TCR provides better stability. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RS-03K4423FT 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.