
FH (Guangdong Fenghua Advanced Tech)
A close parametric alternative from the same manufacturer with a slightly higher resistance of 45.3kΩ.
Finding a substitute for the RS-03K4422FT, a 44.2kΩ 1% 0.1W 0603 thick film resistor, involves finding parts with similar core parameters. Key considerations are resistance value, power rating, and package size.
Resistance changes are small and within standard component series.
All suggested candidates share the same 0603 package.
These are common resistor values from multiple major manufacturers.
No exact drop-in replacement is listed. The closest options are parametric alternatives that require engineering review of the resistance change.
Use a parametric alternative with the closest resistance value, such as RS-03K4532FT (+2.5% resistance).
The primary risk is the deviation in resistance from the original 44.2kΩ value, which may affect circuit performance.

FH (Guangdong Fenghua Advanced Tech)
A close parametric alternative from the same manufacturer with a slightly higher resistance of 45.3kΩ.
| Feature / factor | RS-03K4422FT | RS-03K4532FT | RC0603FR-0742K2L | ARG03BTC4702 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package ensures form and fit.; RC0603FR-0742K2L: Identical package ensures form and fit.; ARG03BTC4702: Identical package ensures form and fit. |
| Resistance | 44.2kΩ | 45.3kΩ | 42.2kΩ | 47kΩ | 45.3kΩ / 42.2kΩ / 47kΩ — Resistance is 2.5% higher; verify circuit tolerance.; RC0603FR-0742K2L: Resistance is 4.5% lower; verify circuit tolerance.; ARG03BTC4702: Resistance is 6.3% higher. |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Tolerance is identical.; RC0603FR-0742K2L: Tolerance is identical.; ARG03BTC4702: Tighter tolerance is a performance upgrade. |
| Power | 0.1W | 0.1W | 0.1W | - | 0.1W — Power rating is identical.; RC0603FR-0742K2L: Power rating is identical. |
| Tcr | ±100ppm/℃ | ±100ppm/℃ | - | ±25ppm/°C | ±100ppm/℃ / ±25ppm/°C — Temperature coefficient is identical.; ARG03BTC4702: Lower TCR provides better temperature stability. |
| Technology | Thick Film | - | - | Thin Film | Thin Film — Different resistor technology may affect pulse handling. |
RS-03K4532FT from the same manufacturer is a strong candidate, offering identical specs except for a slightly higher resistance of 45.3kΩ. Always verify your circuit's tolerance for this change.