Is there a pin-compatible replacement for FRC0603F8661TS?

Yes, all suggested alternatives use the same 0603 package and are pin-compatible. However, none have the exact same 8.66kΩ resistance, so they are classified as parametric alternatives requiring engineering review.

What risks should I check before replacing FRC0603F8661TS?

The main risk is the difference in resistance. The closest option is 2.4% higher, while others vary by up to 8%. For some candidates, the technology changes from Thick Film to Thin Film, which can affect pulse-withstanding capability. Always verify the new resistance value is acceptable in your circuit.

FRC0603F8661TS Alternatives, Datasheet & Cross Reference | FOJAN

Find and compare parametric alternatives for the FRC0603F8661TS, an 8.66kΩ 1% 0603 chip resistor. This guide provides options with closely matched specs and precision upgrades for your design.

AI replacement insight

Electrical risklow

Resistance values differ by 2-8%. Technology change to Thin Film in some candidates may affect pulse handling.

Package risklow

All candidates share the same 0603 package, ensuring form and fit compatibility.

Sourcing risklow

Candidates are from major manufacturers (Yageo, FOJAN) and are actively produced.

Can it be replaced directly?

No direct drop-in replacement was found due to minor resistance differences. However, FRC0603F8871TS is a very strong parametric alternative that is likely compatible with most applications.

Best replacement path

FRC0603F8871TS is the strongest candidate, matching technology, tolerance, and TCR with only a +2.4% resistance difference.

Main risk

The primary risk is the slight deviation in resistance values across all candidates, which requires circuit-level validation.

Recommended alternatives

Strong parametric alternative with a 2.4% higher resistance; all other key specifications match.

View details

Alternative comparison matrix

Feature / factor	FRC0603F8661TS	FRC0603F8871TS	RT0603BRD079K09L	RT0603BRE078K25L	Compatibility / risk
Resistance	8.66 kΩ	8.87 kΩ	9.09 kΩ	8.25 kΩ	8.87 kΩ / 9.09 kΩ / 8.25 kΩ — Value is 2.4% higher than target.; RT0603BRD079K09L: Value is 5% higher than target.; RT0603BRE078K25L: Value is 4.7% lower than target.
Technology	Thick Film	Thick Film	Thin Film	Thin Film	Thick Film / Thin Film — matched; RT0603BRD079K09L: May have different pulse handling.; RT0603BRE078K25L: May have different pulse handling.
Tolerance	±1%	±1%	±0.1%	±0.1%	±1% / ±0.1% — matched; RT0603BRD079K09L: Tighter tolerance.; RT0603BRE078K25L: Tighter tolerance.
Tcr	±100 ppm/°C	±100 ppm/°C	25 ppm/°C	50 ppm/°C	±100 ppm/°C / 25 ppm/°C / 50 ppm/°C — matched; RT0603BRD079K09L: Better thermal stability.; RT0603BRE078K25L: Better thermal stability.
Package	0603	0603	0603	-	0603 — matched; RT0603BRD079K09L: matched

Application & sourcing insights

Questions & answers

The best alternative is FRC0603F8871TS. It has the same 0603 package, 1/10W power, ±1% tolerance, and ±100 ppm/°C TCR, with a very close resistance of 8.87kΩ.