
FOJAN
Pin-compatible upgrade from the same manufacturer (FOJAN) with a tighter 1% tolerance.
Find pin-compatible replacements and functional alternatives for the FRC0603J203 TS, a 20kΩ 5% 0.1W 0603 thick film resistor. This guide provides verified options, including upgrades with tighter tolerance.
Most candidates match or exceed key electrical specs. Tighter tolerance is generally a safe upgrade.
All candidates match the 0603 package, ensuring physical compatibility.
Switching to Thin Film parts like RT0603BRD0720KL requires careful review of application needs (e.g., pulse handling).
Direct replacement for FRC0603J203 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for FRC0603J203 TS, then review parametric alternatives for package and electrical fit.
The primary risk is using a part with different technology (Thin Film) or a weaker TCR without engineering validation.

FOJAN
Pin-compatible upgrade from the same manufacturer (FOJAN) with a tighter 1% tolerance.
| Feature / factor | FRC0603J203 TS | FRC0603F2002TS | RC0603FR-0720KL | AC0603FR-0720KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | - | 0603 — Same package size. |
| Tolerance | 5% | 1% | - | - | 1% — Candidate has a tighter (better) tolerance. |
| Power | 0.1W | 0.1W | - | - | 0.1W — Power rating matches. |
| Manufacturer | FOJAN | FOJAN | - | - | FOJAN — Same manufacturer as target. |
| Resistance | 20kΩ | - | 20kΩ | - | 20kΩ — Resistance matches. |
| Tcr | ±100 ppm/°C | - | ±100 ppm/°C | - | ±100 ppm/°C — TCR matches. |
| Application | General Purpose | - | - | AEC-Q200 | AEC-Q200 — Candidate is automotive grade, an upgrade. |
Verified drop-in options for FRC0603J203 TS 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.