Is there a pin-compatible replacement for AC0402FR-0718KL?

Several candidates share the same 0402 package, making them physically compatible. However, none are confirmed as direct replacements due to the lack of AEC-Q200 qualification.

What risks should I check before replacing AC0402FR-0718KL?

First, confirm if your application requires an AEC-Q200 qualified resistor. Second, verify that the tolerance, TCR, and power rating of the substitute meet your circuit's needs.

AC0402FR-0718KL Alternatives, Datasheet & Cross Reference | Yageo

AC0402FR-0718KL is an AEC-Q200 qualified 18kΩ, 1% resistor in a 0402 package. Finding a substitute requires careful review of automotive qualification.

AI replacement insight

Application riskhigh

Substituting a non-AEC-Q200 part in an automotive application is a high risk.

Package risklow

The 0402 package is standard and matches across candidates.

Electrical risklow

Parametrically similar options exist for non-automotive use cases.

Can it be replaced directly?

No direct, drop-in replacement has been identified, as all reviewed candidates lack the target's AEC-Q200 automotive qualification.

Best replacement path

For non-automotive applications, FRC0402F1802TS offers a close parametric match. For automotive use, another 'AC' series part from Yageo is recommended.

Main risk

The primary risk is replacing an automotive-grade component with a commercial-grade one, which may fail under harsh conditions.

Recommended alternatives

A parametrically similar alternative from a different manufacturer, but not automotive-grade.

View details

Alternative comparison matrix

Feature / factor	AC0402FR-0718KL	FRC0402F1802TS	RT0402BRD0718KL	Compatibility / risk
Package	0402	0402	0402	0402 — Matches target package.; RT0402BRD0718KL: Matches target package.
Resistance	18kΩ, ±1%	18kΩ, ±1%	18kΩ	18kΩ, ±1% — Matches resistance and tolerance.; RT0402BRD0718KL: Matches nominal resistance.
Power	1/16 W	1/16 W	-	1/16 W — Matches power rating.
Tcr	±100 ppm/°C	±100 ppm/°C	25 ppm/°C	±100 ppm/°C / 25 ppm/°C — Matches temperature coefficient.; RT0402BRD0718KL: Superior temperature coefficient.
Application	AEC-Q200	Commercial	Commercial	Commercial — Lacks target's AEC-Q200 qualification.; RT0402BRD0718KL: Lacks target's AEC-Q200 qualification.
Tolerance	±1%	-	±0.1%	±0.1% — Tighter tolerance than target.
Technology	Thick Film	-	Thin Film	Thin Film — Different resistor technology.

Application & sourcing insights

Questions & answers

For non-automotive designs, FRC0402F1802TS is a strong parametric match. For automotive applications, a replacement must also be AEC-Q200 qualified.