Is there a pin-compatible replacement for AC0603FR-073R3L?

Yes, several 0603 package resistors are pin-compatible in form factor. However, electrical parameters like resistance, tolerance, TCR, and automotive qualification differ and must be verified.

What risks should I check before replacing AC0603FR-073R3L?

The main risk is replacing an AEC-Q200 automotive-grade part with a commercial-grade one. Also, check for differences in resistance tolerance and Temperature Coefficient (TCR), as these can affect circuit performance and reliability.

AC0603FR-073R3L Alternatives, Datasheet & Cross Reference | Yageo

AC0603FR-073R3L is an automotive-grade 3.3Ω, 1%, 0.1W resistor in a 0603 package. Finding a direct, qualified replacement requires careful review of parametric and qualification data.

AI replacement insight

Electrical riskmedium

Candidates have different resistance, tolerance, or TCR values.

Application riskhigh

Substituting a commercial part for an automotive-grade one is not recommended.

Package risklow

All candidates share the same 0603 package.

Can it be replaced directly?

No direct, fully-qualified replacement is identified in this list. All candidates lack the target's AEC-Q200 qualification.

Best replacement path

Seek an alternative AEC-Q200 qualified 0603 resistor with 3.3Ω, ±1% tolerance, and TCR of ±200 ppm/°C or better.

Main risk

Loss of automotive-grade (AEC-Q200) qualification, which can impact long-term reliability in harsh environments.

Recommended alternatives

A 3.6Ω ±1% 0.1W 0603 resistor. TCR and automotive qualification must be verified.

View details

Alternative comparison matrix

Feature / factor	AC0603FR-073R3L	0603WAF360KT5E	FRC0603F3R00TS	FRC0603J3R3 TS	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Matches target package.; FRC0603F3R00TS: Matches target package.; FRC0603J3R3 TS: Matches target package.
Resistance	3.3 Ω	3.6 Ω	3.0 Ω	3.3 Ω	3.6 Ω / 3.0 Ω / 3.3 Ω — Slightly higher resistance.; FRC0603F3R00TS: Slightly lower resistance.; FRC0603J3R3 TS: Matches target resistance.
Tolerance	±1%	±1%	±1%	±5%	±1% / ±5% — Matches target tolerance.; FRC0603F3R00TS: Matches target tolerance.; FRC0603J3R3 TS: Wider tolerance than target.
Tcr	±200 ppm/°C	Not specified	±400 ppm/°C	±400 ppm/°C	Not specified / ±400 ppm/°C — TCR data missing, must verify.; FRC0603F3R00TS: Higher TCR, less stable.; FRC0603J3R3 TS: Higher TCR, less stable.
Application	AEC-Q200	Commercial	Commercial	Commercial	Commercial — Lacks AEC-Q200 qualification.; FRC0603F3R00TS: Lacks AEC-Q200 qualification.; FRC0603J3R3 TS: Lacks AEC-Q200 qualification.

Application & sourcing insights

Questions & answers

No direct AEC-Q200 qualified alternative is listed. Commercial-grade options like 0603WAF360KT5E exist but require engineering review for tolerance, TCR, and lack of automotive qualification.