Is there a pin-compatible replacement for CRCW040240K2FKED?

Several resistors share the 0402 package and pinout, like Yageo's AC0402FR-0740K2L. However, always verify all electrical parameters for your specific application before substitution.

What risks should I check before replacing CRCW040240K2FKED?

Key risks include ensuring the replacement is AEC-Q200 qualified if used in automotive circuits, and verifying the power rating provides sufficient margin for your design's power dissipation.

CRCW040240K2FKED Alternatives, Datasheet & Cross Reference | Vishay

CRCW040240K2FKED is a popular AEC-Q200 qualified 40.2kΩ 1% 0402 chip resistor from Vishay. Alternatives exist but require checking power rating and automotive qualification.

AI replacement insight

Application riskhigh

Using a non-AEC-Q200 part in an automotive design is a high risk.

Electrical risklow

Key electrical parameters are well-matched by several candidates.

Package risklow

0402 is a standard SMT package with excellent availability.

Can it be replaced directly?

A direct drop-in replacement is possible with Yageo's AC0402FR-0740K2L, as it matches key specs including AEC-Q200 qualification. Verify power dissipation in your circuit.

Best replacement path

For automotive use, Yageo AC0402FR-0740K2L is the closest match. For general-purpose designs, other thick film resistors are viable.

Main risk

The main risk is substituting a non-AEC-Q200 part in an automotive application or using a part without sufficient power rating margin.

Recommended alternatives

Strong automotive-grade alternative with identical package, resistance, tolerance, and AEC-Q200 qualification.

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Alternative comparison matrix

Feature / factor	CRCW040240K2FKED	AC0402FR-0740K2L	RT0402BRD0740K2L	Compatibility / risk
Package	0402	0402	-	0402 — Matches package size.
Resistance	40.2kΩ	40.2kΩ	-	40.2kΩ — Identical resistance value.
Power	0.063W	0.0625W	-	0.0625W — Slightly lower rating, does not meet 1.5x safety rule.
Application	AEC-Q200	AEC-Q200	Not specified	AEC-Q200 / Not specified — Both parts are automotive qualified.; RT0402BRD0740K2L: Not AEC-Q200 qualified.
Tolerance	±1%	±1%	±0.1%	±1% / ±0.1% — Identical tolerance.; RT0402BRD0740K2L: Tighter tolerance may be an upgrade.
Tcr	±100 ppm/K	-	25 ppm/°C	25 ppm/°C — Better temperature stability.
Technology	Thick Film	-	Thin Film	Thin Film — Different technology, check pulse handling.

Application & sourcing insights

Questions & answers

Yageo's AC0402FR-0740K2L is a strong alternative, offering the same 0402 package, 40.2kΩ resistance, 1% tolerance, and AEC-Q200 qualification.