Is there a pin-compatible replacement for AC0402FR-0753K6L?

While several alternatives share the same 0402 package and are pin-compatible, none are exact drop-in replacements due to differences in resistance. AC0402FR-0752K3L is the closest parametrically, but requires engineering validation.

What risks should I check before replacing AC0402FR-0753K6L?

Before replacing, you must check your circuit's tolerance for resistance deviation. The alternatives have values from 49.9kΩ to 52.3kΩ. For AT0402BRD0749K9L, also verify the impact of changing from Thick Film to Thin Film technology.

AC0402FR-0753K6L Alternatives, Datasheet & Cross Reference | Yageo

AC0402FR-0753K6L is an AEC-Q200 qualified 53.6kΩ thick film resistor from Yageo in a 0402 package. While no exact drop-in replacement is available, several parametric alternatives exist with slightly different resistance values.

AI replacement insight

Electrical riskmedium

Resistance values differ, requiring circuit analysis. One candidate has different resistor technology (Thin Film).

Package risklow

All suggested alternatives share the same 0402 package, ensuring form and fit compatibility.

Can it be replaced directly?

No direct drop-in replacement has been identified. All suitable alternatives have a different resistance value that requires engineering review to ensure it is within the application's tolerance.

Best replacement path

The best replacement path is a parametric alternative from the same Yageo AC series, such as AC0402FR-0752K3L, which has a very close resistance value.

Main risk

The primary risk is resistance mismatch. The closest alternative deviates by -2.4%, which may be unacceptable for precision circuits.

Recommended alternatives

A parametric alternative in a 0402 package with a significantly lower resistance value.

View details

Alternative comparison matrix

Feature / factor	AC0402FR-0753K6L	AC0402FR-0749K9L	AC0402FR-0752K3L	AT0402BRD0749K9L	Compatibility / risk
Package	0402	0402	0402	0402	0402 — Same package and pin count.; AC0402FR-0752K3L: Same package and pin count.; AT0402BRD0749K9L: Same package and pin count.
Resistance	53.6 kΩ	49.9 kΩ	52.3 kΩ	49.9 kΩ	49.9 kΩ / 52.3 kΩ — -6.9% deviation from target. Requires circuit validation.; AC0402FR-0752K3L: -2.4% deviation from target. Verify circuit sensitivity.; AT0402BRD0749K9L: -6.9% deviation from target.
Tolerance	1%	1%	1%	0.1%	1% / 0.1% — Identical precision.; AC0402FR-0752K3L: Identical precision.; AT0402BRD0749K9L: Tighter tolerance than target.
Power	1/16 W	1/16 W	1/16 W	-	1/16 W — Identical power rating.; AC0402FR-0752K3L: Identical power rating.
Tcr	±100 ppm/°C	-	±100 ppm/°C	±25 ppm/°C	±100 ppm/°C / ±25 ppm/°C — Identical temperature coefficient.; AT0402BRD0749K9L: Better temperature stability.
Technology	Thick Film	-	-	Thin Film	Thin Film — Different technology may affect noise and pulse handling.

Application & sourcing insights

Questions & answers

The best alternative is likely AC0402FR-0752K3L. It is from the same automotive-grade series and has the closest resistance value (52.3kΩ vs 53.6kΩ), but you must verify if the -2.4% deviation is acceptable for your design.