
FOJAN
Parametric alternative with same resistance but wider ±5% tolerance.
Finding a substitute for the RS-03K7503FT 750kΩ resistor involves considering several parametric alternatives. While no exact drop-in is found, options with similar form-fit and function are available but require careful review of resistance and tolerance values.
Most candidates have different resistance values or wider tolerance. Circuit analysis is required.
All suggested alternatives use the same 0603 package, ensuring physical compatibility.
No direct, verified drop-in replacement has been identified. All suitable alternatives require a review of parametric differences, such as resistance value or tolerance.
FRC0603F7323TS offers the closest resistance value (732kΩ vs 750kΩ) with otherwise identical specifications, making it the strongest candidate.
The primary risk is a change in resistance value, which can alter circuit behavior in timing, biasing, or feedback applications.

FOJAN
Parametric alternative with same resistance but wider ±5% tolerance.
| Feature / factor | RS-03K7503FT | FRC0603J754 TS | RS-03K6803FT | RS-03K8203FT | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 750 kΩ | 750 kΩ | 680 kΩ | 820 kΩ | 750 kΩ / 680 kΩ / 820 kΩ / 732 kΩ — Resistance value matches.; RS-03K6803FT: Resistance is ~9.3% lower.; RS-03K8203FT: Resistance is ~9.3% higher.; FRC0603F7323TS: Resistance is very close (~2.4% lower). |
| Tolerance | ±1% | ±5% | ±1% | ±1% | ±5% / ±1% — Wider tolerance may impact circuit precision.; RS-03K6803FT: Tolerance matches.; RS-03K8203FT: Tolerance matches.; FRC0603F7323TS: Tolerance matches. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Power rating matches.; RS-03K6803FT: Power rating matches.; RS-03K8203FT: Power rating matches.; FRC0603F7323TS: Power rating matches. |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RS-03K6803FT: Package size matches.; RS-03K8203FT: Package size matches.; FRC0603F7323TS: Package size matches. |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | - | - | ±100 ppm/°C — Temperature coefficient matches. |
The best alternative is likely FRC0603F7323TS. It has a very close resistance of 732kΩ (vs. 750kΩ) and matches the ±1% tolerance, 0.1W power, and 0603 package.