RC0603FR-07143KL
Yageo
Needs validationlow risk
A 143kΩ thick film resistor from Yageo in the same 0603 package with identical power, tolerance, and TCR ratings.
Best Alternatives to RS-03K1403FT
Find and compare replacements for the Fenghua RS-03K1403FT, a 140kΩ 1% 0.1W 0603 thick film resistor. This page provides parametric alternatives from Yageo, Viking, and others, with detailed comparisons to help you select a suitable substitute.
AI replacement insight
Electrical risklow
Resistance values differ by 2-10%. This is a low risk for many general-purpose applications but requires verification for precision circuits.
Package risklow
All suggested alternatives use the same standard 0603 package, ensuring form and fit compatibility.
Can it be replaced directly?
No exact direct replacement was found. However, several parametric alternatives with very similar specifications are available and should be suitable after review.
Best replacement path
Use a parametric alternative with the closest resistance value, such as Yageo's RC0603FR-07143KL (143kΩ) or Fenghua's RS-03K1433FT (143kΩ).
Main risk
The primary risk is the deviation in resistance value, which can affect circuit timing, biasing, or feedback loops. All suggested alternatives have a resistance value different from 140kΩ.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-03K1403FT | RC0603FR-07143KL | RS-03K1433FT | ARG03BTC1353N | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 140kΩ | 143kΩ | 143kΩ | 135kΩ | 143kΩ / 135kΩ / 130kΩ — Candidate resistance is 2.1% higher. Must verify application tolerance.; RS-03K1433FT: Candidate resistance is 2.1% higher. Must verify application tolerance.; ARG03BTC1353N: Candidate resistance is 3.6% lower.; RS-03K1303FT: Candidate resistance is 7.1% lower. Must verify application tolerance. |
| Package | 0603 | 0603 (1608 Metric) | 0603 | 0603 | 0603 (1608 Metric) — Package is physically compatible.; RS-03K1433FT: matched; ARG03BTC1353N: matched; RS-03K1303FT: matched |
| Power | 0.1W | 0.1W | 0.1W | - | 0.1W — matched; RS-03K1433FT: matched; RS-03K1303FT: matched |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — matched; RS-03K1433FT: matched; ARG03BTC1353N: Tighter tolerance is a performance upgrade. |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | - | ±25ppm/°C | ±100 ppm/°C / ±25ppm/°C — matched; ARG03BTC1353N: Lower TCR provides better stability over temperature. |
| Manufacturer | FH (Guangdong Fenghua Advanced Tech) | Yageo | - | - | Yageo — Cross-vendor alternative. |
| Technology | Thick Film | - | - | Thin Film | Thin Film — Different technology may affect pulse handling and noise. |
Application & sourcing insights
Questions & answers
The best alternatives for RS-03K1403FT are RC0603FR-07143KL by Yageo or RS-03K1433FT by Fenghua. Both have a 143kΩ resistance, which is a close parametric match.