
FOJAN
Upgrade from the same manufacturer (FOJAN) with a tighter ±1% tolerance and matching key specs.
Find verified substitutes for the FOJAN FRC0603J105 TS, a 1MΩ 5% 0.1W 0603 thick film resistor. This page lists pin-compatible upgrades and cross-vendor alternatives.
Low risk if key parameters like resistance, power, and TCR are matched or improved.
Low risk as all suggested alternatives are in the same 0603 package.
Multiple cross-vendor options are available, reducing sourcing risk.
Direct replacement for FRC0603J105 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Upgrade to a 1% tolerance part like FOJAN's FRC0603F1004TS for higher precision, or use FH's RS-03K105JT for a direct 5% tolerance match.
The main risk is ensuring the replacement's TCR and pulse-withstanding capabilities are suitable for the application, as these are not always identical.

FOJAN
Upgrade from the same manufacturer (FOJAN) with a tighter ±1% tolerance and matching key specs.
| Feature / factor | FRC0603J105 TS | FRC0603F1004TS | AC0603FR-071ML | RS-03K105JT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | - | 0603 — Identical package ensures form/fit compatibility. |
| Tolerance | ±5% | ±1% | - | - | ±1% — Tighter tolerance provides higher precision. |
| Resistance | 1 MΩ | 1 MΩ | - | - | 1 MΩ — matched |
| Power | 0.1W | 0.1W | - | - | 0.1W — matched |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | ±100 ppm/°C — matched |
| Application | General Purpose | - | AEC-Q200 | - | AEC-Q200 — Automotive qualification offers higher reliability. |
Verified drop-in options for FRC0603J105 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.