Best Alternatives to RC0402FR-0721KL

Package: 0402 (1005 Metric)YageoChip Resistor - Surface MountSeries: RC_LPackage: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Resistance: 21 kOhmsTolerance: ±1%Composition: Thick Film

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.

AI replacement insight

Electrical risklow

Resistance differs by <5%, which is often within circuit tolerance.

Package risklow

The 0402 package is standard and alternatives are form-fit compatible.

Can it be replaced directly?

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.

Best replacement path

Parametric alternatives with slightly different resistance values (20kΩ-22kΩ) are readily available.

Main risk

Slight resistance deviation requires circuit tolerance analysis.

Recommended alternatives

2
RC0402FR-0722KL package
Needs validationlow risk

A parametric alternative in the same 0402 package with a slightly higher resistance of 22kΩ.

View details

Alternative comparison matrix

Feature / factorRC0402FR-0721KLRC0402FR-0722KLAC0402FR-0720KLAlt 3Compatibility / risk
Package04020402 (1005 metric)-0402 — Package size matches.
Resistance21 kΩ22 kΩ-20 kΩ — Resistance is ~4.8% lower. Verify circuit tolerance.
Power0.0625 W0.0625 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.
ApplicationGeneral Purpose-AEC-Q200AEC-Q200 — Candidate is automotive grade, an upgrade.

Application & sourcing insights

Questions & answers

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.