
FOJAN
Pin-compatible 4.02kΩ 1% 1/8W resistor in an 0805 package with matching technology and voltage rating.
Find alternatives for the 0805W8F4021T5E, a 4.02kΩ 1% 1/8W 0805 thick film resistor. This page lists pin-compatible parts, upgrades, and parametric alternatives.
Low for pin-to-pin match; medium to high for others due to resistance or technology differences.
All candidates share the same 0805 package, ensuring physical compatibility.
Yes, FRC0805F4021TS is a pin-to-pin compatible alternative with matching resistance, tolerance, power, and package.
For a direct replacement, FRC0805F4021TS offers identical key parameters. For precision applications, RT0805BRD074K02L is an upgrade.
The main risk is substituting with a part of a different resistance value or technology (thin film vs. thick film) without design review.

FOJAN
Pin-compatible 4.02kΩ 1% 1/8W resistor in an 0805 package with matching technology and voltage rating.
| Feature / factor | 0805W8F4021T5E | FRC0805F4021TS | RT0805BRD074K02L | FRC0805F4121TS | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 4.02 kΩ | 4.02 kΩ | 4.02 kΩ | 4.12 kΩ | 4.02 kΩ / 4.12 kΩ / 4.3 kΩ — Identical resistance value.; RT0805BRD074K02L: Identical resistance value.; FRC0805F4121TS: Resistance is ~2.5% higher.; FRC0805F4301TS: Resistance is ~7% higher. |
| Tolerance | ±1% | ±1% | ±0.1% | - | ±1% / ±0.1% — Identical tolerance.; RT0805BRD074K02L: Tighter tolerance is an upgrade. |
| Power | 0.125 W | 0.125 W | - | 0.125 W | 0.125 W — Identical power rating.; FRC0805F4121TS: Identical power rating.; FRC0805F4301TS: Identical power rating. |
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Identical 0805 package.; RT0805BRD074K02L: Identical 0805 package.; FRC0805F4121TS: Identical package.; FRC0805F4301TS: Identical package. |
| Technology | Thick Film | Thick Film | Thin Film | - | Thick Film / Thin Film — Identical resistor technology.; RT0805BRD074K02L: Technology differs, may affect pulse handling. |
| Tcr | ±100 ppm/°C (est.) | - | 25 ppm/°C | - | 25 ppm/°C — Lower TCR provides better stability. |
FRC0805F4021TS is the best direct alternative with identical specifications. For higher precision needs, RT0805BRD074K02L is a strong upgrade path.