
UNI-ROYAL
Strong pin-to-pin candidate with matching resistance, tolerance, power, and package. TCR needs review.
Find and compare substitutes for the FRC0805F4023TS, a 402kΩ, 1%, 0.125W, 0805 thick film chip resistor. Review pin-compatible options, upgrades, and parametric alternatives.
Several candidates have different resistance values or technology. The best match has an unverified TCR.
All candidates share the same 0805 package, ensuring form and fit compatibility.
Yes, 0805W8F4023T5E is a potential pin-to-pin replacement, matching resistance, tolerance, power, and package. However, its TCR is not specified and should be confirmed to match the target's ±100 ppm/°C.
The UNI-ROYAL 0805W8F4023T5E is the strongest candidate, matching all key electrical parameters and package. Verification of its Temperature Coefficient of Resistance (TCR) is recommended.
The main risk is substituting with a part that has a different resistance value or technology (thin film vs. thick film), which can affect circuit performance.

UNI-ROYAL
Strong pin-to-pin candidate with matching resistance, tolerance, power, and package. TCR needs review.
| Feature / factor | FRC0805F4023TS | 0805W8F4023T5E | AR05BTCW4003 | FRC0805F3903TS | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 402 kΩ | 402 kΩ | 400 kΩ | 390 kΩ | 402 kΩ / 400 kΩ / 390 kΩ — Exact match.; AR05BTCW4003: Resistance is within 0.5% of target, acceptable.; FRC0805F3903TS: Resistance deviates by -3%.; RC0805FR-07390KL: Resistance deviates by -3%. |
| Tolerance | ±1% | ±1% | ±0.1% | - | ±1% / ±0.1% — Exact match.; AR05BTCW4003: Tighter tolerance is an upgrade. |
| Power | 0.125 W | 0.125 W | - | - | 0.125 W — Exact match. |
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Form and fit match.; AR05BTCW4003: Form and fit match.; FRC0805F3903TS: Package matches.; RC0805FR-07390KL: Package matches. |
| Tcr | ±100 ppm/°C | Not specified | ±25ppm/℃ | ±100 ppm/°C | Not specified / ±25ppm/℃ / ±100 ppm/°C — Candidate TCR is missing, review required.; AR05BTCW4003: Lower TCR is a significant upgrade.; FRC0805F3903TS: TCR matches.; RC0805FR-07390KL: TCR matches. |
| Technology | Thick Film | - | Thin Film | - | Thin Film / Thick Film — Technology differs, may affect noise and pulse handling.; RC0805FR-07390KL: Technology matches. |
| Manufacturer | FOJAN | - | - | FOJAN | FOJAN — Same manufacturer as target. |
Verified drop-in options for FRC0805F4023TS 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.