
UNI-ROYAL
Same manufacturer and package, but resistance is 40.2kΩ vs target's 41.2kΩ.
Finding a substitute for the 0201WMF4122TEE, a 41.2kΩ 1% 0201 resistor, requires careful consideration. No direct drop-in replacements were found, so engineers must choose between alternatives with a different package size or a different resistance value.
Several options have different package sizes (0402, 0603) and require PCB layout changes.
Package-compatible options have different resistance values that are outside the target's ±1% tolerance band.
No, a direct, drop-in replacement for 0201WMF4122TEE with the exact 41.2kΩ resistance in a 0201 package was not found among the candidates.
If PCB layout is fixed, use RC0201FR-0740K2L (40.2kΩ). If layout can change, FRC0402F4122TS is an electrical match in a 0402 package.
The primary risk is choosing between physical incompatibility (wrong package size) and electrical deviation (wrong resistance value).

UNI-ROYAL
Same manufacturer and package, but resistance is 40.2kΩ vs target's 41.2kΩ.
| Feature / factor | 0201WMF4122TEE | 0201WMF4022TEE | RC0201FR-0740K2L | RC0201FR-0743KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0201 | 0201 | 0201 | 0201 | 0201 / 0402 — matched; RC0201FR-0740K2L: matched; RC0201FR-0743KL: matched; FRC0402F4122TS: Candidate is larger, requires layout change. |
| Resistance | 41.2 kΩ | 40.2 kΩ | 40.2 kΩ | 43 kΩ | 40.2 kΩ / 43 kΩ / 41.2 kΩ — 2.4% lower resistance, outside target's 1% tolerance band.; RC0201FR-0740K2L: 2.4% lower resistance, outside target's 1% tolerance band.; RC0201FR-0743KL: 4.4% higher resistance, outside target's 1% tolerance band.; FRC0402F4122TS: matched |
| Power | 0.05 W | 0.05 W | 0.05 W | 0.05 W | 0.05 W / 0.0625 W — matched; RC0201FR-0740K2L: matched; RC0201FR-0743KL: matched; FRC0402F4122TS: Slightly higher power rating is a safe upgrade. |
| Manufacturer | UNI-ROYAL | UNI-ROYAL | - | - | UNI-ROYAL — Same manufacturer as target. |
| Tcr | Not Specified | - | ±200 ppm/°C | ±200 ppm/°C | ±200 ppm/°C / ±100 ppm/°C — Potentially weaker TCR.; RC0201FR-0743KL: Potentially weaker TCR.; FRC0402F4122TS: Candidate TCR is specified and good. |
There is no single best alternative. If your PCB layout is fixed, RC0201FR-0740K2L is a 0201 part with a close resistance of 40.2kΩ. If you can change the layout, FRC0402F4122TS is an electrical match in a 0402 package.