
UNI-ROYAL
Matches resistance and package but is a very low-precision Thick Film part (5% vs 0.1% tolerance).
Finding a substitute for the Yageo RT0402BRD07240RL precision resistor requires careful review. While several parts share the 0402 package, key differences in resistance, tolerance, and technology must be considered to ensure circuit performance.
Using a thick-film part instead of thin-film introduces significant error from tolerance and temperature drift.
All candidates share the same 0402 package, ensuring physical compatibility.
There is no direct, drop-in replacement among the candidates. All options require engineering review due to differences in precision or resistance value.
The best replacement path is to find another thin-film resistor with 0.1% tolerance and 25 ppm/°C TCR. The part RT0402BRD07249RL is a strong candidate if the circuit can accept a 249 Ohm resistance.
The main risk is performance degradation by substituting a general-purpose thick-film resistor, which will have lower accuracy and stability over temperature.

UNI-ROYAL
Matches resistance and package but is a very low-precision Thick Film part (5% vs 0.1% tolerance).
| Feature / factor | RT0402BRD07240RL | 0402WGJ0241TCE | AC0402FR-07240RL | RT0402BRD07249RL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Package size matches.; AC0402FR-07240RL: Package size matches.; RT0402BRD07249RL: Package size matches. |
| Resistance | 240.0 Ohm | 240.0 Ohm | 240.0 Ohm | 249.0 Ohm | 240.0 Ohm / 249.0 Ohm — Resistance value matches.; AC0402FR-07240RL: Resistance value matches.; RT0402BRD07249RL: Resistance differs by ~3.75%. Application must tolerate this shift. |
| Tolerance | 0.1% | 5.0% | 1.0% | 0.1% | 5.0% / 1.0% / 0.1% — Tolerance is 50x wider, a major precision downgrade.; AC0402FR-07240RL: Tolerance is 10x wider, a significant precision downgrade.; RT0402BRD07249RL: Precision tolerance matches. |
| Technology | Thin Film | Thick Film | Thick Film | Thin Film | Thick Film / Thin Film — Different technology implies lower stability.; AC0402FR-07240RL: Different technology implies lower stability and higher TCR.; RT0402BRD07249RL: Technology and stability match. |
| Tcr | 25 ppm/°C | - | ≥100 ppm/°C | 25 ppm/°C | ≥100 ppm/°C / 25 ppm/°C — Temperature coefficient is significantly worse.; RT0402BRD07249RL: Temperature coefficient matches. |
The best alternative depends on your circuit's needs. For matching precision, RT0402BRD07249RL is best if a 249 Ohm resistance is acceptable. If 240 Ohm is required, AC0402FR-07240RL is an option, but with a significant drop in precision to 1% tolerance.