
FOJAN
A direct upgrade from the same manufacturer with tighter ±1% tolerance, matching all other key specifications.
Finding a replacement for the FRC0603J305 TS, a 3MΩ 0603 chip resistor, involves checking tolerance, power, and TCR. Several alternatives exist with varying trade-offs.
Check resistance and TCR for parametric alternatives.
All suggested alternatives are in the same 0603 package.
Yes, FRC0603F3004TS is a direct replacement with better performance.
The FRC0603F3004TS is a direct upgrade path with improved tolerance.
The main risk is using a substitute with a different resistance value or a worse Temperature Coefficient (TCR).

FOJAN
A direct upgrade from the same manufacturer with tighter ±1% tolerance, matching all other key specifications.
| Feature / factor | FRC0603J305 TS | FRC0603F3004TS | FRC0603F3304TS | RC0603FR-073ML | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; FRC0603F3304TS: Package size matches.; RC0603FR-073ML: Package size matches. |
| Resistance | 3MΩ | 3MΩ | 3.3MΩ | 3MΩ | 3MΩ / 3.3MΩ — Resistance value matches.; FRC0603F3304TS: Resistance is 10% higher.; RC0603FR-073ML: Resistance value matches. |
| Tolerance | ±5% | ±1% | ±1% | ±1% | ±1% — Candidate has tighter tolerance.; FRC0603F3304TS: Candidate has tighter tolerance.; RC0603FR-073ML: Candidate has tighter tolerance. |
| Power | 1/10W | 1/10W | - | - | 1/10W — Power rating matches. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±200 ppm/°C | ±100 ppm/°C / ±200 ppm/°C — Temperature coefficient matches.; FRC0603F3304TS: Temperature coefficient matches.; RC0603FR-073ML: Worse TCR may affect stability. |
FRC0603F3004TS from the same manufacturer, FOJAN, is an excellent upgrade, offering tighter ±1% tolerance while matching all other key parameters.