RC0603FR-072K21L
Yageo
Needs validationlow risk
Yageo's RC0603FR-072K21L is a strong pin-compatible alternative with matching package, resistance, tolerance, and power rating.
Best Alternatives to RS-03K2211FT
Finding a replacement for the RS-03K2211FT, a 2.21kΩ 1% 0.1W 0603 thick film resistor, involves matching key electrical parameters and package size. Several cross-vendor options exist with similar specs.
AI replacement insight
Package risklow
The 0603 package is standardized, so physical fit is not a concern.
Electrical riskmedium
Risk is low with 1:1 matches, but medium if tolerance is relaxed or technology is changed.
Can it be replaced directly?
Direct replacement for RS-03K2211FT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for RS-03K2211FT, then review parametric alternatives for package and electrical fit.
Main risk
The main risk is substituting with a part that has a wider tolerance (e.g., 5%) or a different technology (e.g., Thin Film) without design validation.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-03K2211FT | RC0603FR-072K21L | CRCW06032K20FKEA | FRC0603F2211TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Form and fit match.; CRCW06032K20FKEA: Form and fit match.; FRC0603F2211TS: Form and fit match.; RT0603BRB072K2L: Form and fit match. |
| Resistance | 2.21 kΩ | 2.21 kΩ | 2.2 kΩ | 2.21 kΩ | 2.21 kΩ / 2.2 kΩ — Resistance value is identical.; CRCW06032K20FKEA: 0.45% lower than target, within tolerance.; FRC0603F2211TS: Resistance value is identical. |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% / ±0.1% — Tolerance is identical.; CRCW06032K20FKEA: Tolerance is identical.; FRC0603F2211TS: Tolerance is identical.; RT0603BRB072K2L: Tighter tolerance is an upgrade. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Power rating is identical.; CRCW06032K20FKEA: Power rating is identical.; FRC0603F2211TS: Power rating is identical. |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | - | - | ±100 ppm/°C / 10 ppm/°C — Temperature coefficient is identical.; RT0603BRB072K2L: Lower TCR is a significant upgrade. |
| Application | General Purpose | - | AEC-Q200 | - | AEC-Q200 — Automotive qualification is an upgrade. |
| Technology | Thick Film | - | - | Thick Film (inferred) | Thick Film (inferred) / Thin Film — Summary indicates Thick Film, matching target.; RT0603BRB072K2L: Different technology may affect performance. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RS-03K2211FT 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.