
FOJAN
An upgrade with a higher 2W power rating in the same 2512 package and matching electricals.
Find and compare verified substitutes for the RC-12K1500FT, a 150Ω 1W 1% 2512 thick film resistor. This guide provides upgrade paths, pin-compatible alternatives, and highlights key parameters like TCR for engineering review.
All viable candidates use the same 2512 package.
Many alternatives have unspecified TCR or wider tolerance, requiring engineering review.
Direct replacement for RC-12K1500FT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best replacement is FRP2512F1500TS, which is an upgrade offering a higher 2W power rating with all other key parameters matching.
The main risk when substituting is using a part with an unspecified or wider temperature coefficient (TCR), which can affect circuit stability over temperature.

FOJAN
An upgrade with a higher 2W power rating in the same 2512 package and matching electricals.
| Feature / factor | RC-12K1500FT | FRP2512F1500TS | 25121WF1500T4E | FRC2512F1500TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 | 2512 — Same package size.; 25121WF1500T4E: Same package size.; FRC2512F1500TS: Same package size. |
| Resistance | 150Ω | 150Ω | 150Ω | 150Ω | 150Ω — Resistance matches.; 25121WF1500T4E: Resistance matches.; FRC2512F1500TS: Resistance matches. |
| Power | 1.0W | 2.0W | 1.0W | 1.0W | 2.0W / 1.0W — Higher power rating provides more design margin.; 25121WF1500T4E: Power rating matches.; FRC2512F1500TS: Power rating matches. |
| Tolerance | ±1% | ±1% | - | - | ±1% — Tolerance matches. |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | Not specified | Not specified | ±100 ppm/°C / Not specified — Temperature coefficient matches.; 25121WF1500T4E: TCR is a key parameter for stability.; FRC2512F1500TS: TCR is a key parameter for stability. |
Verified drop-in options for RC-12K1500FT 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.