What risks should I check before replacing CRCW04022K49FKED?

Before replacing, verify the substitute's AEC-Q200 qualification if for automotive use. Also, check the power rating (higher is generally safe, lower requires analysis) and any technology differences (e.g., Thick vs. Thin Film).

CRCW04022K49FKED Alternatives, Datasheet & Cross Reference | Vishay

CRCW04022K49FKED is a popular 2.49kΩ, 1%, 0.063W thick film resistor in an 0402 package, qualified to AEC-Q200 for automotive use. Several alternatives are available, including pin-compatible and high-precision options.

AI replacement insight

Electrical riskhigh

Using a part with lower power rating or different technology (Thin vs. Thick film) requires circuit analysis.

Package risklow

All viable candidates use the same standard 0402 package, ensuring physical compatibility.

Sourcing riskhigh

Using a non-AEC-Q200 part in an automotive design can lead to qualification failure and reliability issues.

Can it be replaced directly?

Direct replacement for CRCW04022K49FKED should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

ERJ2RKF2491X from Panasonic is the strongest candidate, offering a direct parametric match with a beneficial power upgrade and the same AEC-Q200 qualification.

Main risk

The primary risk when substituting is failing to match the AEC-Q200 qualification, which is critical for automotive applications. Power rating and technology differences must also be reviewed.

Recommended alternatives

AEC-Q200 qualified substitute with identical resistance and tolerance in the same 0402 package.

View details

Alternative comparison matrix

Feature / factor	CRCW04022K49FKED	ERJ2RKF2491X	RT0402BRD072K49L	Compatibility / risk
Package	0402	0402	0402	0402 — Same package ensures physical compatibility.; RT0402BRD072K49L: matched
Resistance	2.49 kΩ	2.49 kΩ	-	2.49 kΩ — matched
Power	0.063 W	0.1 W	0.0625 W	0.1 W / 0.0625 W — Higher power rating is a safe upgrade.; RT0402BRD072K49L: Slightly lower power rating requires review.
Tolerance	±1%	±1%	±0.1%	±1% / ±0.1% — matched; RT0402BRD072K49L: Tighter tolerance offers higher precision.
Tcr	±100 ppm/K	±100 ppm/K	25 ppm/°C	±100 ppm/K / 25 ppm/°C — matched; RT0402BRD072K49L: Lower TCR provides better stability over temperature.
Application	AEC-Q200	AEC-Q200	-	AEC-Q200 — Both parts are qualified for automotive use.
Technology	Thick Film	-	Thin Film	Thin Film — Different technology may affect pulse handling.

Application & sourcing insights

Questions & answers

Verified drop-in options for CRCW04022K49FKED 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.