Is there a pin-compatible replacement for ARG03BTC2490?

Yes, several 0603 package resistors are pin-compatible in form factor. However, no candidates have the exact 249Ω resistance and ±0.1% tolerance. All require engineering review of parametric differences.

What risks should I check before replacing ARG03BTC2490?

Key risks are changes in resistance value, tolerance, and temperature coefficient (TCR). The target is a precision part (0.1%, 25ppm/°C); using a general-purpose resistor (1% or 5%) will likely impact circuit performance and stability.

ARG03BTC2490 Alternatives, Datasheet & Cross Reference | Viking Tech

ARG03BTC2490 is a high-precision 0603 thin-film resistor with 249Ω resistance, ±0.1% tolerance, and ±25ppm/°C TCR. Finding a direct replacement requires matching these tight specifications.

AI replacement insight

Electrical riskmedium

Resistance, tolerance, and TCR are critical for precision circuits.

Package risklow

Candidates share the common 0603 package.

Can it be replaced directly?

No direct replacement with identical 249Ω resistance and 0.1% tolerance was found. Alternatives require parametric review.

Best replacement path

Use a precision resistor with the same 0.1% tolerance and 25ppm/°C TCR, like Yageo's RT0603BRD series, but verify resistance value deviation is acceptable.

Main risk

The primary risk is substituting with a part that has a different resistance value or a wider tolerance/TCR, which can affect circuit accuracy.

Recommended alternatives

A 249Ω resistor in the same package but with significantly lower precision (1% tolerance, 100ppm TCR).

View details

Alternative comparison matrix

Feature / factor	ARG03BTC2490	FRC0603F2490TS	RT0603BRD07240RL	RT0603BRD07270RL	Compatibility / risk
Resistance	249 Ω	249 Ω	240 Ω	270 Ω	249 Ω / 240 Ω / 270 Ω — Resistance value matches.; RT0603BRD07240RL: Resistance is ~3.6% lower.; RT0603BRD07270RL: Resistance is ~8.4% higher.
Tolerance	±0.1%	±1.0%	±0.1%	±0.1%	±1.0% / ±0.1% — Candidate tolerance is 10x wider.; RT0603BRD07240RL: Precision tolerance matches.; RT0603BRD07270RL: Precision tolerance matches.
Tcr	±25 ppm/°C	±100 ppm/°C	25 ppm/°C	25 ppm/°C	±100 ppm/°C / 25 ppm/°C — Candidate TCR is 4x higher, indicating lower stability.; RT0603BRD07240RL: Low TCR matches.; RT0603BRD07270RL: Low TCR matches.
Power	0.1 W	0.1 W	0.1 W	0.1 W	0.1 W — Power rating matches.; RT0603BRD07240RL: Power rating matches.; RT0603BRD07270RL: Power rating matches.
Package	0603	0603	0603	0603	0603 — Package size matches.; RT0603BRD07240RL: Package size matches.; RT0603BRD07270RL: Package size matches.

Application & sourcing insights

Questions & answers

The best alternatives are precision thin-film resistors like RT0603BRD07240RL (240Ω) or RT0603BRD07270RL (270Ω), which match the tolerance and TCR. The choice depends on whether a slightly lower or higher resistance is acceptable for your application.