Is there a pin-compatible replacement for AC0805FR-073K3L?

While several parts like RT0805BRD073K3L share the same 0805 package and pinout, none are a direct drop-in replacement without trade-offs. The most critical difference is the lack of AEC-Q200 automotive qualification in the suggested alternatives.

What risks should I check before replacing AC0805FR-073K3L?

First, confirm if your application requires AEC-Q200 qualification. Second, check if the circuit can tolerate changes in resistance tolerance and temperature coefficient (TCR). The target has ±1% tolerance and ±100ppm/°C TCR.

AC0805FR-073K3L Alternatives, Datasheet & Cross Reference | Yageo

Finding a substitute for the AEC-Q200 qualified AC0805FR-073K3L resistor requires careful review of parametric and qualification differences. While several parts share the 3.3kΩ resistance and 0805 package, key attributes like tolerance, TCR, and automotive-grade qualification vary.

AI replacement insight

Electrical riskhigh

Risk of failure if application requires AEC-Q200 qualification or tight tolerance/TCR.

Package risklow

All reviewed candidates share the same 0805 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, drop-in replacement without caveats has been identified. The primary challenge is matching the target's AEC-Q200 qualification.

Best replacement path

The best path is another AEC-Q200 qualified resistor with matching parameters. If unavailable, RT0805BRD073K3L offers superior electrical specs but requires waiving the automotive qualification.

Main risk

The main risk is using a non-automotive grade component in an application that requires AEC-Q200 reliability standards.

Recommended alternatives

A form-fit compatible alternative with tighter tolerance and TCR, but not AEC-Q200 qualified.

View details

Alternative comparison matrix

Feature / factor	AC0805FR-073K3L	RT0805BRD073K3L	RC0805JR-073K3L	Compatibility / risk
Package	0805	0805	0805	0805 — Same package and pin count.; RC0805JR-073K3L: Same package and pin count.
Resistance	3.3 kΩ	3.3 kΩ	3.3 kΩ	3.3 kΩ — Resistance value matches.; RC0805JR-073K3L: Resistance value matches.
Tolerance	±1%	±0.1%	±5%	±0.1% / ±5% — Candidate has tighter tolerance.; RC0805JR-073K3L: Candidate has wider tolerance.
Tcr	±100 ppm/°C	25 ppm/°C	±200 ppm/°C	25 ppm/°C / ±200 ppm/°C — Candidate has better temperature stability.; RC0805JR-073K3L: Candidate has worse temperature stability.
Qualification	AEC-Q200	None	None	None — Candidate is not AEC-Q200 qualified.; RC0805JR-073K3L: Candidate is not AEC-Q200 qualified.

Application & sourcing insights

Questions & answers

Yageo's RT0805BRD073K3L is a strong parametric alternative with better tolerance (0.1%) and TCR (25ppm/°C), but it lacks the target's AEC-Q200 qualification. For automotive use, an AEC-Q200 qualified part is strongly recommended.