
Viking Tech
A pin-compatible upgrade with tighter tolerance (0.1%) and better TCR (±25ppm/°C).
FRC0603F2490TS is a standard 0603 thick film resistor with 249Ω resistance. While several alternatives exist, careful attention must be paid to matching the resistance value and considering the resistor technology.
Using a 240Ω part instead of 249Ω is a 3.6% change that requires circuit validation.
All viable candidates are in the same 0603 package.
Yes, ARG03BTC2490 is a direct functional replacement with upgraded specifications, though it uses a different resistor technology.
Upgrade to a precision Thin Film resistor like ARG03BTC2490 for a direct resistance match with better performance.
The primary risk is substituting with a part that has a different resistance value, such as 240Ω, which may alter circuit behavior.

Viking Tech
A pin-compatible upgrade with tighter tolerance (0.1%) and better TCR (±25ppm/°C).
| Feature / factor | FRC0603F2490TS | ARG03BTC2490 | FRC0603F2400TS | RS-03K2400FT | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 249.0 Ω | 249.0 Ω | 240.0 Ω | 240.0 Ω | 249.0 Ω / 240.0 Ω — Exact match; FRC0603F2400TS: 3.6% lower, outside target tolerance; RS-03K2400FT: 3.6% lower, outside target tolerance |
| Tolerance | 1.0 % | 0.1 % | 1.0 % | 1.0 % | 0.1 % / 1.0 % — Candidate has tighter tolerance; FRC0603F2400TS: Identical tolerance; RS-03K2400FT: Identical tolerance |
| Tcr | ±100 ppm/°C | ±25 ppm/°C | - | - | ±25 ppm/°C — Candidate has better temperature stability |
| Technology | Thick Film | Thin Film | Thick Film | Thick Film | Thin Film / Thick Film — Technology differs, may affect pulse handling; FRC0603F2400TS: Identical technology; RS-03K2400FT: Identical technology |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package; FRC0603F2400TS: Identical package; RS-03K2400FT: Identical package |
Viking Tech's ARG03BTC2490 is an excellent upgrade, offering the same 249Ω resistance with better tolerance (0.1%) and TCR (±25ppm/°C). It uses Thin Film technology, which should be verified for the application.