RS-03K3300FT
FH (Guangdong Fenghua Advanced Tech)
Needs validationlow risk
Upgrade from the same manufacturer with tighter ±1% tolerance and identical key parameters.
Best Alternatives to RS-03K331JT
RS-03K331JT is a general-purpose 330Ω 5% 0.1W resistor in an 0603 package. Several pin-compatible alternatives and upgrades with tighter tolerance are available from multiple manufacturers.
AI replacement insight
Package risklow
All reviewed candidates are in the same 0603 package, ensuring physical compatibility.
Electrical riskmedium
Some alternatives have a weaker TCR. Always verify TCR and tolerance meet your design requirements.
Sourcing risklow
Multiple vendors (Yageo, FOJAN, UNI-ROYAL) offer viable alternatives, improving supply chain resilience.
Can it be replaced directly?
Yes, several pin-compatible replacements exist for RS-03K331JT. The best options are upgrades with tighter tolerance, such as Yageo's RC0603FR-07330RL or Fenghua's own RS-03K3300FT.
Best replacement path
Use an upgrade path candidate like RC0603FR-07330RL or RS-03K3300FT, which offer tighter ±1% tolerance while matching all other key specifications.
Main risk
The main risk when substituting is selecting a part with a weaker Temperature Coefficient (TCR), which can affect circuit stability in applications sensitive to temperature changes.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-03K331JT | RS-03K3300FT | FRC0603F3300TS | RC0603FR-07330RL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package ensures physical drop-in compatibility.; FRC0603F3300TS: Identical package ensures physical drop-in compatibility.; RC0603FR-07330RL: Identical package ensures physical drop-in compatibility.; RC0603JR-07330RL: Identical package ensures physical drop-in compatibility. |
| Resistance | 330.0 Ω | 330.0 Ω | - | - | 330.0 Ω — Resistance value is identical. |
| Tolerance | 5.0% | 1.0% | 1.0% | 1.0% | 1.0% / 5.0% — Tighter tolerance provides higher precision.; FRC0603F3300TS: Tighter tolerance provides higher precision.; RC0603FR-07330RL: Tighter tolerance provides higher precision.; RC0603JR-07330RL: Tolerance is identical. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Power rating matches. Verify application derating.; FRC0603F3300TS: Power rating matches. Verify application derating.; RC0603FR-07330RL: Power rating matches. Verify application derating.; RC0603JR-07330RL: Power rating matches. Verify application derating. |
| Tcr | ±100ppm/℃ | ±100ppm/℃ | ±100 ppm/°C | ±100 ppm/°C | ±100ppm/℃ / ±100 ppm/°C / ±200 ppm/°C — Temperature coefficient is identical.; FRC0603F3300TS: Temperature coefficient is identical.; RC0603FR-07330RL: Temperature coefficient is identical.; RC0603JR-07330RL: Weaker TCR may affect stability over temperature. |
Application & sourcing insights
Questions & answers
The best alternatives are upgrade parts like Yageo's RC0603FR-07330RL or Fenghua's RS-03K3300FT. They offer a tighter ±1% tolerance in the same 0603 package with identical resistance, power, and TCR.