
Yageo
Excellent pin-to-pin match with identical core specs and the benefit of automotive qualification.
Find and compare substitutes for the RS-03K6800FT, a 680Ω ±1% 0.1W 0603 thick film chip resistor. Analysis includes pin-compatible matches, upgrades, and parametric alternatives.
Using a part with weaker tolerance or TCR can cause circuit failure or performance degradation.
The 0603 package is highly standardized, making physical replacement straightforward.
Yes, Yageo's AC0603FR-07680RL is a direct replacement with matching key parameters and package.
Use Yageo AC0603FR-07680RL for a direct, high-quality replacement.
The main risk is using a substitute with a wider tolerance (e.g., ±5%) or higher TCR, which can compromise the performance of precision circuits.

Yageo
Excellent pin-to-pin match with identical core specs and the benefit of automotive qualification.
| Feature / factor | RS-03K6800FT | AC0603FR-07680RL | RT0603BRD07680RL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 — Identical package ensures physical compatibility.; RT0603BRD07680RL: Identical package ensures physical compatibility. | |
| Resistance | 680.0 Ω | 680.0 Ω | - | 680.0 Ω — Resistance value is identical. | |
| Tolerance | 1.0 % | 1.0 % | 0.1 % | 1.0 % / 0.1 % — Precision matches the original part.; RT0603BRD07680RL: Tighter tolerance is a precision upgrade. | |
| Power | 0.1 W | 0.1 W | - | 0.1 W — Power rating is identical. | |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | 25 ppm/°C | ±100 ppm/°C / 25 ppm/°C — Temperature coefficient is identical.; RT0603BRD07680RL: Lower TCR provides better temperature stability. | |
| Application | General Purpose | AEC-Q200 | - | AEC-Q200 — Candidate is automotive grade, an upgrade. | |
| Technology | Thick Film | - | Thin Film | Thin Film — Technology differs, may affect noise and pulse performance. |
The Yageo AC0603FR-07680RL is the best alternative, offering identical core specifications (680Ω, ±1%, 0.1W, 0603) and the added benefit of AEC-Q200 automotive qualification.