What risks should I check before replacing FRC2512F49R9TS?

Before replacing, verify two main risks: 1) For alternatives with slightly different resistance (e.g., 51Ω), confirm your circuit can tolerate the change. 2) For parts with unspecified TCR, check the datasheet to ensure it meets your application's stability requirements.

FRC2512F49R9TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC2512F49R9TS is a 1W, 49.9Ω, 1% tolerance thick film resistor in a standard 2512 surface-mount package. Several pin-compatible and parametric alternatives from other manufacturers are available, offering flexibility in sourcing.

AI replacement insight

Electrical risklow

Low if using a part with matched resistance, power, and TCR. Medium if resistance is relaxed to 51Ω.

Package risklow

All viable alternatives use the same 2512 package, ensuring form-fit compatibility.

Can it be replaced directly?

Direct replacement for FRC2512F49R9TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for FRC2512F49R9TS, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is using an alternative with an unverified Temperature Coefficient of Resistance (TCR) or a slightly different resistance value (e.g., 51Ω).

Recommended alternatives

Matches all key electrical parameters and package, making it a strong pin-compatible alternative.

View details

Alternative comparison matrix

Feature / factor	FRC2512F49R9TS	RC-12K49R9FT	25121WF499JT4E	RC2512FK-0751RL	Compatibility / risk
Package	2512	2512	2512	2512	2512 — Same EIA package size.; 25121WF499JT4E: Same EIA package size.; RC2512FK-0751RL: Same EIA package size.
Resistance	49.9 Ω	49.9 Ω	49.9 Ω	51.0 Ω	49.9 Ω / 51.0 Ω — Resistance value matches.; 25121WF499JT4E: Resistance value matches.; RC2512FK-0751RL: Slightly higher resistance (+2.2%).
Power	1.0 W	1.0 W	1.0 W	1.0 W	1.0 W — Power rating matches.; 25121WF499JT4E: Power rating matches.; RC2512FK-0751RL: Power rating matches.
Tolerance	±1%	±1%	±1%	-	±1% — Tolerance matches.; 25121WF499JT4E: Tolerance matches.
Tcr	±100 ppm/°C	±100ppm/℃	Not specified	±100 ppm/°C	±100ppm/℃ / Not specified / ±100 ppm/°C — Temperature coefficient matches.; 25121WF499JT4E: TCR is not specified; datasheet review required.; RC2512FK-0751RL: Temperature coefficient matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC2512F49R9TS 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.