What risks should I check before replacing CRCW060349K9FKEA?

When replacing, verify the substitute has AEC-Q200 qualification if for automotive use. Also, ensure resistance (49.9kΩ), tolerance (±1%), and power rating (0.1W) are identical. For any parametric differences, circuit analysis is required.

CRCW060349K9FKEA Alternatives, Datasheet & Cross Reference | Vishay

Finding a substitute for the Vishay CRCW060349K9FKEA, a 49.9kΩ 1% 0.1W 0603 AEC-Q200 resistor, involves matching key parameters. Alternatives exist but require careful review of qualifications and parametric differences.

AI replacement insight

Electrical risklow

Risk is low if key parameters and qualification are matched.

Package risklow

Standard 0603 package poses minimal risk.

Sourcing riskhigh

Using a non-AEC-Q200 part in an automotive design creates significant reliability and compliance risk.

Can it be replaced directly?

Direct replacement for CRCW060349K9FKEA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is using Yageo AC0603FR-0749K9L, which is a cross-vendor match with the same AEC-Q200 qualification.

Main risk

The main risk is using a commercial-grade substitute in an automotive application that requires AEC-Q200 qualification.

Recommended alternatives

Yageo AC0603FR-0749K9L is a strong alternative, matching resistance, tolerance, power, 0603 package, and AEC-Q200 qualification.

View details

Alternative comparison matrix

Feature / factor	CRCW060349K9FKEA	AC0603FR-0749K9L	RS-03K4992FT	Compatibility / risk
Package	0603	0603	0603	0603 — Same EIA 0603 package.; RS-03K4992FT: Same EIA 0603 package.
Resistance	49.9 kΩ	49.9 kΩ	49.9 kΩ	49.9 kΩ — Resistance value is identical.; RS-03K4992FT: Resistance value is identical.
Tolerance	±1%	±1%	-	±1% — Tolerance is identical.
Power	0.1 W	0.1 W	0.1 W	0.1 W — Power rating is identical.; RS-03K4992FT: Power rating is identical.
Tcr	±100 ppm/K	±100 ppm/°C	-	±100 ppm/°C — Temperature coefficient is identical.
Application	AEC-Q200	AEC-Q200	Not specified	AEC-Q200 / Not specified — Both parts are AEC-Q200 qualified.; RS-03K4992FT: Candidate is commercial grade, target is AEC-Q200.

Application & sourcing insights

Questions & answers

Verified drop-in options for CRCW060349K9FKEA 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.