
FH (Guangdong Fenghua Advanced Tech)
Upgrade from the same manufacturer with tighter ±1% tolerance. Resistance of 33.2kΩ is within the original's tolerance band.
RS-03K333JT is a common 33kΩ 0.1W 0603 resistor. Many alternatives are available, including direct pin-compatible parts and superior upgrades with tighter tolerance or automotive-grade qualification.
Key parameters are well-matched across many candidates. Verify TCR if application is temperature-sensitive.
All reviewed candidates use the standard 0603 package, ensuring form and fit compatibility.
This is a common resistor value available from multiple major manufacturers, reducing sourcing risk.
Direct replacement for RS-03K333JT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best replacement path is choosing an upgrade like AC0603FR-0733KL (AEC-Q200) or RS-03K3322FT (tighter tolerance), which offer better performance.
The main risk is ensuring the replacement's power rating is sufficient for the application, as some engineering guidelines recommend a safety margin.

FH (Guangdong Fenghua Advanced Tech)
Upgrade from the same manufacturer with tighter ±1% tolerance. Resistance of 33.2kΩ is within the original's tolerance band.
| Feature / factor | RS-03K333JT | RS-03K3322FT | AC0603FR-0733KL | FRC0603J333 TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Same 0603 package.; AC0603FR-0733KL: Same 0603 package.; FRC0603J333 TS: Same 0603 package.; RC0603JR-0733KL: Same 0603 package. |
| Resistance | 33kΩ | 33.2kΩ | 33kΩ | 33kΩ | 33.2kΩ / 33kΩ — Value is within target's ±5% tolerance.; AC0603FR-0733KL: Resistance value matches.; FRC0603J333 TS: Resistance value matches.; RC0603JR-0733KL: Resistance value matches. |
| Tolerance | ±5% | ±1% | ±1% | ±5% | ±1% / ±5% — Tighter tolerance provides higher precision.; AC0603FR-0733KL: Tighter tolerance provides higher precision.; FRC0603J333 TS: Tolerance matches.; RC0603JR-0733KL: Tolerance matches. |
| Power | 0.1W | - | 0.1W | 0.1W | 0.1W — Power rating matches, verify application load.; FRC0603J333 TS: Power rating matches, but lacks recommended safety margin. Verify application load.; RC0603JR-0733KL: Power rating matches, but lacks recommended safety margin. Verify application load. |
| Application | General Purpose | - | AEC-Q200 | - | AEC-Q200 — Automotive grade offers higher reliability. |
| Tcr | ±100ppm/℃ | - | - | - | ±100ppm/°C — Temperature coefficient matches. |
Verified drop-in options for RS-03K333JT 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.