Is there a pin-compatible replacement for AC0402FR-0740K2L?

FOJAN FRC0402F4022TS is a potential pin-compatible replacement in terms of electrical values and package, but it lacks the target's AEC-Q200 automotive qualification, which is a critical difference.

What risks should I check before replacing AC0402FR-0740K2L?

Key risks include mismatched automotive qualification (AEC-Q200), differences in resistor technology (Thick vs. Thin Film), and deviations in resistance, tolerance, or temperature coefficient (TCR).

AC0402FR-0740K2L Alternatives, Datasheet & Cross Reference | Yageo

AC0402FR-0740K2L is an AEC-Q200 qualified 40.2kΩ 1% 0402 thick film resistor. Finding a substitute requires matching these parameters, with special attention to the automotive qualification for relevant applications.

AI replacement insight

Application riskhigh

Target is automotive grade (AEC-Q200); most candidates are not.

Package risklow

All reviewed candidates match the 0402 package.

Electrical riskmedium

Some candidates differ in technology or have resistance deviations.

Can it be replaced directly?

No direct drop-in replacement has been identified that matches all key parameters including AEC-Q200 qualification.

Best replacement path

Find an AEC-Q200 qualified 40.2kΩ 1% 0402 resistor. For non-automotive use, FRC0402F4022TS is a strong candidate.

Main risk

The primary risk is substituting a non-automotive grade part into an application requiring AEC-Q200 reliability.

Recommended alternatives

A strong parametric match in a 0402 package, but not AEC-Q200 qualified.

View details

Alternative comparison matrix

Feature / factor	AC0402FR-0740K2L	FRC0402F4022TS	RT0402BRD0740K2L	Compatibility / risk
Resistance	40.2 kΩ	40.2 kΩ	-	40.2 kΩ — Exact match.
Package	0402	0402	-	0402 — Same package size.
Application	AEC-Q200	Not specified	Not specified	Not specified — Candidate lacks AEC-Q200 qualification.; RT0402BRD0740K2L: Candidate lacks AEC-Q200 qualification.
Tolerance	±1%	±1%	±0.1%	±1% / ±0.1% — Exact match.; RT0402BRD0740K2L: Tighter tolerance.
Tcr	±100 ppm/°C	±100 ppm/°C	25 ppm/°C	±100 ppm/°C / 25 ppm/°C — Exact match.; RT0402BRD0740K2L: Better temperature stability.
Technology	Thick Film	-	Thin Film	Thin Film — Candidate is Thin Film, may have different noise/pulse characteristics.

Application & sourcing insights

Questions & answers

For non-automotive applications, FOJAN FRC0402F4022TS is a strong parametric match. For automotive use, a replacement must also be AEC-Q200 qualified, which requires careful verification.