Is there a pin-compatible replacement for FRC0603F2491TS?

Yes, 0603WAF2491T5E is pin-compatible in the same 0603 package. While electrically very similar, its power rating does not have an increased safety margin, requiring engineering review before use.

What risks should I check before replacing FRC0603F2491TS?

Key risks include: 1) Power Rating: Ensure the substitute's power rating provides enough safety margin for your application. 2) Technology: A switch from Thick to Thin Film can affect pulse handling and cost. 3) Resistance Value: Ensure the substitute's resistance is within your circuit's tolerance.

FRC0603F2491TS Alternatives, Datasheet & Cross Reference | FOJAN

Find and compare substitutes for the FOJAN FRC0603F2491TS, a 2.49kΩ 1% 0.1W thick film resistor in a 0603 package. Alternatives may require review of power rating and technology.

AI replacement insight

Electrical riskmedium

Power rating and technology differences require verification.

Package risklow

All viable candidates are in the same 0603 package.

Can it be replaced directly?

No direct drop-in replacement has been identified. The best candidates require engineering review, primarily for power rating and resistor technology.

Best replacement path

The closest option is 0603WAF2491T5E, which matches key parameters but requires review of the power rating for sufficient design margin.

Main risk

Power Dissipation. Most alternatives have the same 0.1W rating as the target, which may not provide sufficient safety margin (e.g., 1.5x) for all designs.

Recommended alternatives

A 2.49kΩ, 1% resistor in 0603 package. Power rating is identical to target and requires engineering review for thermal margin.

View details

Alternative comparison matrix

Feature / factor	FRC0603F2491TS	0603WAF2491T5E	AR03BTCX2501N	Compatibility / risk
Resistance	2.49 kΩ	2.49 kΩ	-	2.5 kΩ — Value is within target's ±1% tolerance.
Power	0.1 W	0.1 W	-	0.1 W — Identical rating; does not meet recommended ≥1.5x safety margin.
Tolerance	±1%	±1%	-	±0.1% — Tighter tolerance is an upgrade.
Technology	Thick Film	Thick Film	-	Thin Film — May affect pulse handling or noise.
Package	0603	0603	-	0603 — Exact match.
Tcr	±100 ppm/°C	-	±25ppm/°C	±25ppm/°C — Better temperature stability.

Application & sourcing insights

Questions & answers

UNI-ROYAL's 0603WAF2491T5E is a strong candidate, matching resistance, tolerance, and package. However, its power rating is identical (0.1W), so circuit power dissipation must be verified.