
Yageo
A pin-compatible upgrade with tighter tolerance (±1%) and better temperature stability (±100 ppm/°C).
Find the best replacement for the FRC0603J681 TS, a general-purpose 680Ω 5% 0.1W resistor in a 0603 package. Explore pin-compatible alternatives, upgrade paths, and parametric options.
When replacing with a part with matching specs, risk is minimal. Upgrading tolerance/TCR is safe.
All top candidates are in the same 0603 package, ensuring form-fit compatibility.
This is a common value, but availability varies by region and manufacturer. Check distributor stock.
Direct replacement for FRC0603J681 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Upgrade to a 1% tolerance part like Yageo AC0603FR-07680RL or FH RS-03K6800FT for better precision at a likely comparable cost.
The primary risk is selecting a part with a different resistance value or changing from Thick Film to Thin Film technology without evaluation.

Yageo
A pin-compatible upgrade with tighter tolerance (±1%) and better temperature stability (±100 ppm/°C).
| Feature / factor | FRC0603J681 TS | AC0603FR-07680RL | RS-03K6800FT | 0603WAJ0681T5E | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Same package ensures form-fit compatibility.; RS-03K6800FT: Same package ensures form-fit compatibility.; 0603WAJ0681T5E: Same package ensures form-fit compatibility.; RT0603BRD07680RL: Same package ensures form-fit compatibility. |
| Resistance | 680 Ω | 680 Ω | 680 Ω | 680 Ω | 680 Ω — Identical resistance value.; RS-03K6800FT: Identical resistance value.; 0603WAJ0681T5E: Identical resistance value. |
| Tolerance | ±5% | ±1% | ±1% | ±5% | ±1% / ±5% / ±0.1% — Tighter tolerance is a safe upgrade.; RS-03K6800FT: Tighter tolerance is a safe upgrade.; 0603WAJ0681T5E: Identical tolerance.; RT0603BRD07680RL: Significantly tighter tolerance. |
| Tcr | ±400 ppm/°C | ±100 ppm/°C | ±100 ppm/℃ | Not specified | ±100 ppm/°C / ±100 ppm/℃ / Not specified / 25 ppm/°C — Improved temperature stability.; RS-03K6800FT: Improved temperature stability.; 0603WAJ0681T5E: TCR not found in provided data, but likely compatible for a general purpose part.; RT0603BRD07680RL: Significantly better temperature stability. |
| Application | General Purpose | AEC-Q200 | - | - | AEC-Q200 — Automotive grade is an upgrade over general purpose. |
| Power | 0.1W | - | - | 0.1W | 0.1W — Identical power rating. |
| Technology | Thick Film | - | - | - | Thin Film — Technology differs. May affect pulse handling, noise, and cost. |
Verified drop-in options for FRC0603J681 TS 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.