Is there a pin-compatible replacement for RS-03K2403FT?

Yes, all listed alternatives use the same 0603 package and are pin-compatible. However, you must verify electrical parameter differences like resistance value and technology before substitution.

What risks should I check before replacing RS-03K2403FT?

The main risks are minor resistance value differences and technology type. Ensure the substitute's resistance (e.g., 237kΩ or 261kΩ) is acceptable for your circuit. Also, note if the substitute is Thin Film, which is an upgrade but may have different cost or noise characteristics.

RS-03K2403FT Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

RS-03K2403FT is a common 0603 thick film resistor with 240kΩ resistance, 1% tolerance, and 0.1W power rating. Several alternatives exist, including upgrades and parametrically similar options.

AI replacement insight

Electrical risklow

All candidates have similar or better ratings. Resistance variance is the main check.

Package risklow

All candidates are in the same 0603 package.

Firmware risklow

Not applicable for a passive resistor.

Can it be replaced directly?

No exact direct replacement is listed, but several strong candidates with minor parametric differences are available. RT0603BRE07240KL is an upgrade with the same resistance value.

Best replacement path

Upgrade to a thin film resistor like RT0603BRE07240KL for better precision, or use a close-value thick film part like RC0603FR-07243KL.

Main risk

Slight variations in resistance value across candidates require circuit tolerance analysis.

Recommended alternatives

An upgrade with identical resistance, but tighter tolerance (±0.1%) and better TCR (±50ppm/°C).

View details

Alternative comparison matrix

Feature / factor	RS-03K2403FT	RT0603BRE07240KL	RC0603FR-07243KL	ARG03FTC2373	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Form factor matches.; RC0603FR-07243KL: Form factor matches.; ARG03FTC2373: Form factor matches.
Resistance	240kΩ	240kΩ	243kΩ	237kΩ	240kΩ / 243kΩ / 237kΩ — Exact resistance match.; RC0603FR-07243KL: Resistance is +1.25% higher.; ARG03FTC2373: Resistance is -1.25% lower.
Tolerance	±1.0%	±0.1%	±1.0%	±1.0%	±0.1% / ±1.0% — Tighter tolerance is an upgrade.; RC0603FR-07243KL: Tolerance matches.; ARG03FTC2373: Tolerance matches.
Power	0.1W	0.1W	0.1W	-	0.1W — Power rating matches.; RC0603FR-07243KL: Power rating matches.
Tcr	±100ppm/℃	±50 ppm/°C	±100 ppm/°C	±25ppm/°C	±50 ppm/°C / ±100 ppm/°C / ±25ppm/°C — Lower TCR provides better stability.; RC0603FR-07243KL: TCR matches.; ARG03FTC2373: Lower TCR provides better stability.
Technology	Thick Film	Thin Film	-	-	Thin Film — Upgrade in technology, may affect cost.

Application & sourcing insights

Questions & answers

RT0603BRE07240KL is an excellent upgrade, offering the same resistance with better tolerance (±0.1%) and TCR (±50ppm/°C). For a like-for-like replacement, RC0603FR-07243KL is very close with a 243kΩ resistance.