
Yageo
A parametric alternative in the same 0402 package with a slightly higher resistance of 22kΩ.
Yageo's RC0402FR-0721KL is a general-purpose 21kΩ 1% thick film resistor in a standard 0402 package. When seeking alternatives, focus on matching the 0402 footprint, power rating, and ensuring the resistance deviation is within your circuit's tolerance.
Resistance differs by <5%, which is often within circuit tolerance.
The 0402 package is standard and alternatives are form-fit compatible.
No exact drop-in replacement with 21kΩ resistance was identified from the same series. However, parts with 20kΩ and 22kΩ resistance in the same package are common and likely suitable.
Parametric alternatives with slightly different resistance values (20kΩ-22kΩ) are readily available.
Slight resistance deviation requires circuit tolerance analysis.

Yageo
A parametric alternative in the same 0402 package with a slightly higher resistance of 22kΩ.
| Feature / factor | RC0402FR-0721KL | RC0402FR-0722KL | AC0402FR-0720KL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 (1005 metric) | - | 0402 — Package size matches. | |
| Resistance | 21 kΩ | 22 kΩ | - | 20 kΩ — Resistance is ~4.8% lower. Verify circuit tolerance. | |
| Power | 0.0625 W | 0.0625 W | - | 0.0625 W — Power rating matches (assuming data correction). | |
| Tolerance | ±1% | ±1% | - | ±1% — Tolerance matches. | |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | ±100 ppm/°C — Temperature coefficient matches. | |
| Application | General Purpose | - | AEC-Q200 | AEC-Q200 — Candidate is automotive grade, an upgrade. |
Yageo's RC0402FR-0722KL is a close parametric match with 22kΩ resistance. For automotive applications, consider AC0402FR-0720KL, which is AEC-Q200 qualified but has 20kΩ resistance.