
UNI-ROYAL
A strong alternative with identical key parameters including resistance, tolerance, and package.
RC0402FR-072K21L is a general-purpose 2.21 kΩ, 1% tolerance, 0.0625W thick film chip resistor in a standard 0402 package from Yageo. Finding a substitute involves matching these key parameters and package size.
Low if key parameters (resistance, tolerance, power) are matched. Medium if tolerance or technology is different.
The 0402 package is highly standardized, minimizing physical compatibility issues.
This is a common resistor value and package with multiple manufacturers.
Direct replacement for RC0402FR-072K21L should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
0402WGF2211TCE from UNI-ROYAL offers a near-identical parametric match and is the recommended starting point for evaluation.
The primary risk when substituting is using a part with a different resistance value or a wider tolerance, which could impact circuit performance.

UNI-ROYAL
A strong alternative with identical key parameters including resistance, tolerance, and package.
| Feature / factor | RC0402FR-072K21L | 0402WGF2211TCE | RT0402BRD072K2L | AC0402JR-072K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 2.21 kΩ | 2.21 kΩ | 2.2 kΩ | 2.2 kΩ | 2.21 kΩ / 2.2 kΩ — Exact match.; RT0402BRD072K2L: Very close value (-0.45% difference), likely acceptable.; AC0402JR-072K2L: Close value (-0.45% difference), but tolerance is the main issue. |
| Tolerance | ±1% | ±1% | ±0.1% | ±5% | ±1% / ±0.1% / ±5% — Exact match.; RT0402BRD072K2L: Tighter tolerance is a performance upgrade.; AC0402JR-072K2L: Significantly wider tolerance is a major downgrade. |
| Power | 0.0625 W | 0.0625 W | - | - | 0.0625 W — Matches target, but offers no additional power margin. |
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Standard 0402 package.; RT0402BRD072K2L: Standard 0402 package.; AC0402JR-072K2L: Standard 0402 package. |
| Technology | Thick Film | Thick Film | Thin Film | - | Thick Film / Thin Film — Same resistor technology.; RT0402BRD072K2L: Different technology may affect pulse handling and noise. |
| Tcr | ±100 ppm/°C | - | 25 ppm/°C | - | 25 ppm/°C — Better temperature stability. |
| Application | General Purpose | - | - | AEC-Q200 | AEC-Q200 — Automotive grade may be over-specified but is not a risk. |
Verified drop-in options for RC0402FR-072K21L 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.