What risks should I check before replacing FRC0402F1801TS?

When replacing, check three key parameters: 1) Resistance value (ensure it's 1.8kΩ or that your circuit tolerates a different value), 2) Tolerance (use ±1% or verify if a wider tolerance like ±5% is acceptable), and 3) Temperature Coefficient (TCR).

FRC0402F1801TS Alternatives, Datasheet & Cross Reference | FOJAN

Find the best substitutes for the FRC0402F1801TS, a 1.8kΩ 1% 0402 thick film resistor. This guide provides pin-compatible options and parametric alternatives, detailing key differences in tolerance and resistance.

AI replacement insight

Electrical risklow

Low if sticking to 1% tolerance and 1.8kΩ. Medium if tolerance is relaxed or resistance value is changed.

Package risklow

Low, as all recommended candidates are in the standard 0402 package.

Can it be replaced directly?

Direct replacement for FRC0402F1801TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The strongest alternative is RC-02K1801FT, which matches all key specifications including resistance, tolerance, and package, making it a potential pin-to-pin replacement.

Main risk

The main risk when substituting is using a part with a different resistance value or wider tolerance, which can affect circuit performance.

Recommended alternatives

A pin-compatible 1.8kΩ 1% 0402 resistor from a different manufacturer with matching key electrical parameters.

View details

Alternative comparison matrix

Feature / factor	FRC0402F1801TS	RC-02K1801FT	WR04X182JTL	FRC0402F1821TS	Compatibility / risk
Package	0402	0402	0402	0402	0402 — Package size matches.; WR04X182JTL: Package size matches.; FRC0402F1821TS: Package size matches.
Resistance	1.8kΩ	1.8kΩ	1.8kΩ	1.82kΩ	1.8kΩ / 1.82kΩ — Nominal resistance matches.; WR04X182JTL: Nominal resistance matches.; FRC0402F1821TS: Resistance is a different standard value, but very close (+1.1%).
Tolerance	±1%	±1%	±5%	±1%	±1% / ±5% — Resistance tolerance matches.; WR04X182JTL: Tolerance is wider than target's ±1%.; FRC0402F1821TS: Resistance tolerance matches.
Power	1/16W	1/16W	-	-	1/16W — Power rating matches.
Tcr	±100ppm/℃	±100ppm/℃	Not specified	±100ppm/℃	±100ppm/℃ / Not specified — Temperature coefficient matches.; WR04X182JTL: TCR is not specified in catalog data.; FRC0402F1821TS: Temperature coefficient matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC0402F1801TS are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.