
Yageo
AEC-Q200 qualified upgrade with identical resistance and tighter ±1% tolerance.
Find and compare verified substitutes for the FH RS-03K682JT, a 6.8kΩ 5% 0.1W 0603 chip resistor. Explore pin-compatible alternatives, upgrade paths with tighter tolerance, and automotive-grade options.
The 0603 package is highly standardized, making physical replacement straightforward.
Key risks are TCR mismatch for precision circuits or selecting a part with a resistance value outside the original's tolerance band.
This is a very common resistor value and package, with many available manufacturers.
Direct replacement for RS-03K682JT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best upgrade path is to an automotive-grade part like Yageo's AC0603FR-076K8L, which offers tighter ±1% tolerance and AEC-Q200 qualification for higher reliability.
The main risk when substituting is using a part with a different resistance value or a weaker TCR without verifying its impact on circuit performance.

Yageo
AEC-Q200 qualified upgrade with identical resistance and tighter ±1% tolerance.
| Feature / factor | RS-03K682JT | AC0603FR-076K8L | RC0603JR-076K8L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 — Form and fit are identical.; RC0603JR-076K8L: Form and fit are identical. | |
| Resistance | 6.8kΩ | 6.8kΩ | 6.8kΩ | 6.8kΩ — Resistance value is identical.; RC0603JR-076K8L: Resistance value is identical. | |
| Tolerance | ±5% | ±1% | ±5% | ±1% / ±5% — Candidate has tighter tolerance.; RC0603JR-076K8L: Tolerance is identical. | |
| Power | 0.1W | 0.1W | - | 0.1W — Power rating is identical. | |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | ±200 ppm/°C | ±100 ppm/°C / ±200 ppm/°C — Temperature coefficient is identical.; RC0603JR-076K8L: Candidate has a higher TCR, may drift more with temperature. | |
| Application | Commercial | AEC-Q200 | - | AEC-Q200 — Candidate is automotive grade. |
Verified drop-in options for RS-03K682JT 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.