0805W8F4021T5E
UNI-ROYAL
Needs validationlow risk
Potential pin-to-pin match in 0805 package; requires datasheet review to confirm TCR.
Best Alternatives to FRC0805F4021TS
Find and compare verified replacements for the FRC0805F4021TS, a 4.02kΩ 1% 0805 thick film resistor. We analyze pin-compatible options, upgrades, and parametric alternatives to help you make the right choice.
AI replacement insight
Electrical riskmedium
Variations in TCR, technology, or resistance require engineering validation.
Package risklow
All presented candidates use the same 0805 package, ensuring form/fit compatibility.
Sourcing risklow
Multiple manufacturers offer similar parts, indicating good availability.
Can it be replaced directly?
Direct replacement for FRC0805F4021TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The UNI-ROYAL 0805W8F4021T5E is a potential pin-to-pin replacement, matching all key specs, but requires TCR verification.
Main risk
The primary risk is selecting a part with a different resistance value or technology (e.g., thin film) without verifying its impact on circuit performance.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | FRC0805F4021TS | 0805W8F4021T5E | RT0805BRD074K02L | FRC0805F3901TS | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 4.02 kΩ | 4.02 kΩ | 4.02 kΩ | 3.9 kΩ | 4.02 kΩ / 3.9 kΩ / 4.12 kΩ — Exact match; RT0805BRD074K02L: Exact match; FRC0805F3901TS: Resistance is -3% lower.; FRC0805F4121TS: Resistance is +2.5% higher. |
| Tolerance | ±1% | ±1% | ±0.1% | - | ±1% / ±0.1% — Exact match; RT0805BRD074K02L: Tighter tolerance is an upgrade. |
| Power | 0.125 W | 0.125 W | - | - | 0.125 W — Exact match |
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Same package code; RT0805BRD074K02L: Same package code; FRC0805F3901TS: Exact match; FRC0805F4121TS: Exact match |
| Tcr | ±100 ppm/°C | Not specified | 25 ppm/°C | - | Not specified / 25 ppm/°C — TCR is a key parameter and is missing.; RT0805BRD074K02L: Better temperature stability. |
| Technology | Thick Film | - | Thin Film | Thick Film | Thin Film / Thick Film — Technology changes, may affect pulse handling.; FRC0805F3901TS: Exact match; FRC0805F4121TS: Exact match |
Application & sourcing insights
Questions & answers
Verified drop-in options for FRC0805F4021TS 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.