
Yageo
Upgrade path with 2x power rating (0.25W) and AEC-Q200 qualification in the same 0805 package.
RS-05K3300FT is a general-purpose 330Ω 1% 0.125W thick film resistor in an 0805 package. Several pin-compatible and upgraded power alternatives are available from manufacturers like Yageo, Vishay, and FOJAN.
Risk is low for matched parts, but medium if technology or tolerance differs.
All reviewed candidates use the same 0805 package.
Multiple vendors offer compatible parts, indicating good availability.
Direct replacement for RS-05K3300FT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Upgrade to a higher power part like Yageo AC0805FR-7W330RL (0.25W) or Vishay CRCW0805330RFKEAHP (0.5W) for increased design margin.
The main risk is substituting with a part of a different technology (e.g., thin film) or a wider tolerance (5%) without verifying application requirements.

Yageo
Upgrade path with 2x power rating (0.25W) and AEC-Q200 qualification in the same 0805 package.
| Feature / factor | RS-05K3300FT | AC0805FR-7W330RL | CRCW0805330RFKEAHP | AC0805FR-07330RL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Package size matches.; CRCW0805330RFKEAHP: Package size matches.; AC0805FR-07330RL: Package size matches.; FRC0805F3300TS: Package size matches. |
| Resistance | 330.0 Ω | 330.0 Ω | 330.0 Ω | 330.0 Ω | 330.0 Ω — Resistance matches.; CRCW0805330RFKEAHP: Resistance matches.; AC0805FR-07330RL: Resistance matches.; FRC0805F3300TS: Resistance matches. |
| Power | 0.125 W | 0.25 W | 0.5 W | 0.125 W | 0.25 W / 0.5 W / 0.125 W — Power rating is 2x higher, providing more margin.; CRCW0805330RFKEAHP: Power rating is 4x higher, providing more margin.; AC0805FR-07330RL: Power rating matches.; FRC0805F3300TS: Power rating matches. |
| Tolerance | 1.0 % | 1.0 % | 1.0 % | 1.0 % | 1.0 % — Tolerance matches.; CRCW0805330RFKEAHP: Tolerance matches.; AC0805FR-07330RL: Tolerance matches.; FRC0805F3300TS: Tolerance matches. |
| Application | General Purpose | AEC-Q200 | - | AEC-Q200 | AEC-Q200 — Automotive qualification is an upgrade.; AC0805FR-07330RL: Automotive qualification is an upgrade. |
| Tcr | ±100ppm/℃ | - | ±100 ppm/K | - | ±100 ppm/K / ±100 ppm/°C — TCR matches.; FRC0805F3300TS: TCR matches. |
Verified drop-in options for RS-05K3300FT 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.