What risks should I check before replacing FRC2512F3900TS?

Key risks include mismatches in resistance, tolerance, power rating, and Temperature Coefficient (TCR). Also, verify the package dimensions and land pattern are identical to ensure mechanical compatibility.

FRC2512F3900TS Alternatives, Datasheet & Cross Reference | FOJAN

Find and compare alternatives for the FRC2512F3900TS, a 390Ω 1W 1% 2512 chip resistor from FOJAN. Review pin-compatible options, upgrades, and parametric alternatives to ensure project continuity.

AI replacement insight

Package risklow

The 2512 package is highly standardized, so physical incompatibility is unlikely.

Electrical riskmedium

Requires verifying TCR for precision applications. Using parts with different resistance or tolerance is a high risk.

Can it be replaced directly?

Yes, 25121WF3900T4E is a potential pin-to-pin replacement, but its Temperature Coefficient of Resistance (TCR) must be verified to match the target's ±100 ppm/°C.

Best replacement path

The best path is an upgrade to a higher power part like FRP2512F3900TS, or a cross-vendor match like 25121WF3900T4E after verifying its TCR.

Main risk

The main risk is using a part with a different resistance value, a wider tolerance, or an incompatible Temperature Coefficient (TCR).

Recommended alternatives

This resistor is an upgrade with double the power rating in the same 2512 package.

View details

Alternative comparison matrix

Feature / factor	FRC2512F3900TS	FRP2512F3900TS	25121WF3900T4E	Compatibility / risk
Package	2512	2512	2512	2512 — Same EIA package size.; 25121WF3900T4E: Same EIA package size.
Resistance	390 Ω	390 Ω	390 Ω	390 Ω — Resistance values match.; 25121WF3900T4E: Resistance values match.
Power	1.0 W	2.0 W	1.0 W	2.0 W / 1.0 W — Candidate has double the power rating.; 25121WF3900T4E: Power ratings match.
Tolerance	±1%	±1%	±1%	±1% — Tolerance values match.; 25121WF3900T4E: Tolerance values match.
Tcr	±100 ppm/°C	Unknown	Unknown	Unknown — Candidate TCR not specified, review needed for precision applications.; 25121WF3900T4E: TCR is a key parameter for 1% resistors and is missing.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC2512F3900TS 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.