
FOJAN
A tighter tolerance (±1%) version from the same manufacturer, FOJAN.
Finding a substitute for the FOJAN FRC0603J563 TS resistor involves matching the 0603 package, 56kΩ resistance, and 0.1W power rating. Several alternatives from manufacturers like Yageo offer matching or improved specifications.
Risk is low when matching key parameters. Increases if technology is changed.
All suggested alternatives are in the same 0603 package.
56kΩ 0603 resistors are common, multi-sourced components.
Direct replacement for FRC0603J563 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For improved precision, upgrade to a 1% tolerance part like Yageo's RC0603FR-0756K2L. For a like-for-like replacement, use Yageo's RC0603JR-0756KL.
The primary risk is changing resistor technology (e.g., from Thick Film to Thin Film) without verifying the application's tolerance for differences in pulse handling and noise.

FOJAN
A tighter tolerance (±1%) version from the same manufacturer, FOJAN.
| Feature / factor | FRC0603J563 TS | FRC0603F5622TS | RC0603JR-0756KL | RC0603FR-0756K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Same 0603/1608 package.; RC0603JR-0756KL: Same 0603/1608 package.; RC0603FR-0756K2L: Same 0603/1608 package. |
| Resistance | 56.0 kΩ | 56.2 kΩ | 56.0 kΩ | 56.2 kΩ | 56.2 kΩ / 56.0 kΩ — Within target's ±5% tolerance.; RC0603JR-0756KL: Exact nominal resistance.; RC0603FR-0756K2L: Within target's ±5% tolerance. |
| Tolerance | ±5% | ±1% | ±5% | ±1% | ±1% / ±5% — Tighter tolerance from the same manufacturer.; RC0603JR-0756KL: Matching tolerance.; RC0603FR-0756K2L: Tighter tolerance provides higher precision. |
| Power | 0.1W | 0.1W | 0.1W | 0.1W | 0.1W — Matching power rating.; RC0603JR-0756KL: Matching power rating.; RC0603FR-0756K2L: Matching power rating. |
| Technology | Thick Film | - | Thick Film | - | Thick Film — Matching technology. |
| Tcr | ±100 ppm/°C | - | - | ±100 ppm/°C | ±100 ppm/°C — Matching temperature coefficient. |
Verified drop-in options for FRC0603J563 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.