0805W8F4021T5E
UNI-ROYAL
Needs validationlow risk
Cross-vendor alternative with different resistance (4.02kΩ vs 4.12kΩ); shares 0805 package and power rating.
Best Alternatives to FRC0805F4121TS
FRC0805F4121TS is a general-purpose 4.12kΩ, 1% tolerance, 0.125W thick film chip resistor in a standard 0805 package. It is suitable for a wide range of electronic applications requiring moderate precision.
AI replacement insight
Electrical riskmedium
Resistance mismatch can affect circuit timing, gain, or sensor accuracy. Must be verified.
Package risklow
All suggested alternatives use the same 0805 package, ensuring physical compatibility.
Can it be replaced directly?
No direct, drop-in replacement with the exact 4.12kΩ resistance was found. All candidates have different standard resistance values.
Best replacement path
Select a parametric alternative with the closest resistance value (e.g., 4.02kΩ or 4.22kΩ) and verify its suitability for your specific circuit.
Main risk
The primary risk is the deviation in resistance from the target's 4.12kΩ value, which can alter circuit behavior.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | FRC0805F4121TS | 0805W8F4021T5E | FRC0805F4021TS | FRC0805F4221TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Form factor matches.; FRC0805F4021TS: Form factor matches.; FRC0805F4221TS: Form factor matches.; FRC0805F4301TS: Form factor matches. |
| Resistance | 4.12kΩ | 4.02kΩ | 4.02kΩ | 4.22kΩ | 4.02kΩ / 4.22kΩ / 4.3kΩ — Candidate resistance is 2.4% lower.; FRC0805F4021TS: Candidate resistance is 2.4% lower.; FRC0805F4221TS: Candidate resistance is 2.4% higher.; FRC0805F4301TS: Candidate resistance is 4.4% higher. |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% — Tolerance matches.; FRC0805F4021TS: Tolerance matches.; FRC0805F4221TS: Tolerance matches.; FRC0805F4301TS: Tolerance matches. |
| Tcr | ±100 ppm/°C | Not specified | - | - | Not specified / ±100 ppm/°C — TCR not in extracted specs, check datasheet.; FRC0805F4301TS: Temperature coefficient matches. |
| Power | 0.125W | - | 0.125W | 0.125W | 0.125W — Power rating matches.; FRC0805F4221TS: Power rating matches.; FRC0805F4301TS: Power rating matches. |
Application & sourcing insights
Questions & answers
No exact drop-in replacement was found. The best alternative depends on your circuit's tolerance. FRC0805F4021TS (4.02kΩ) and FRC0805F4221TS (4.22kΩ) are the closest options and should be evaluated.