
FOJAN
Excellent match with nearly identical resistance (825Ω) and all other key parameters matching.
Finding a substitute for the RS-03K8200FT, an 820Ω 1% 0.1W resistor in a 0603 package, involves checking for compatible resistance, power rating, and technology. Several strong alternatives are available from various manufacturers.
All viable candidates are in the same 0603 package.
Power rating is not derated. Some alternatives have different resistance or technology, requiring review.
Multiple manufacturers produce similar 0603 resistors, providing a good supply base.
Direct replacement for RS-03K8200FT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best replacement path is FRC0603F8250TS, which offers a nearly identical resistance value (825Ω vs 820Ω) and matches all other key specifications.
The primary risk across all candidates is the lack of a higher power rating. All substitutes are rated for 0.1W, same as the target, offering no additional safety margin.

FOJAN
Excellent match with nearly identical resistance (825Ω) and all other key parameters matching.
| Feature / factor | RS-03K8200FT | FRC0603F8250TS | RT0603BRD07820RL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 — Identical package and land pattern.; RT0603BRD07820RL: Identical package and land pattern. | |
| Resistance | 820 Ω | 825 Ω | 820 Ω | 825 Ω / 820 Ω — Negligible 0.6% difference, within target's own tolerance.; RT0603BRD07820RL: Identical resistance value. | |
| Tolerance | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Matches target specification.; RT0603BRD07820RL: Tighter tolerance than target. | |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Identical power rating; does not provide derating margin.; RT0603BRD07820RL: Identical power rating; does not provide derating margin. | |
| Technology | Thick Film | Thick Film | Thin Film | Thick Film / Thin Film — Matches target technology.; RT0603BRD07820RL: Candidate is Thin Film, offering higher stability but different pulse characteristics. | |
| Tcr | ±100ppm/℃ | - | 25 ppm/°C | 25 ppm/°C — Lower TCR provides better temperature stability. |
Verified drop-in options for RS-03K8200FT 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.