AC0603FR-078K2L
Yageo
Needs validationlow risk
Yageo AC0603FR-078K2L is a strong pin-compatible substitute with identical key specs and AEC-Q200 qualification.
Best Alternatives to RS-03K8201FT
Find pin-compatible and alternative 8.2kΩ 0.1W 0603 resistors for the Fenghua RS-03K8201FT. This guide reviews top substitutes, highlighting differences in tolerance, technology, and performance to help you choose the right part for your application.
AI replacement insight
Package risklow
All recommended alternatives use the same 0603 package, ensuring form-factor compatibility.
Electrical riskmedium
Risks include using a part with wider tolerance (downgrade) or changing technology (thin vs. thick film), which requires review.
Sourcing risklow
The recommended alternatives are from major manufacturers like Yageo and Viking, with good availability.
Can it be replaced directly?
Yes, Yageo's AC0603FR-078K2L is a strong pin-to-pin compatible replacement for the RS-03K8201FT. It matches the 8.2kΩ resistance, ±1% tolerance, 0.1W power rating, and 0603 package.
Best replacement path
For a direct drop-in replacement, Yageo's AC0603FR-078K2L is the best option as it matches all key specifications and adds AEC-Q200 qualification. For applications requiring higher precision, consider a thin film upgrade like Viking's ARG03BTC8201, but verify technology compatibility.
Main risk
The main risk when substituting is mismatching the resistor's tolerance or technology. Using a 5% tolerance part in a circuit designed for 1% can cause performance issues, and switching from thick to thin film technology can affect pulse handling capabilities.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-03K8201FT | AC0603FR-078K2L | ARG03BTC8201 | RT0603BRD078K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package and pinout.; ARG03BTC8201: Identical package and pinout.; RT0603BRD078K2L: Identical package and pinout.; 0603WAJ0822T5E: Identical package and pinout. |
| Resistance | 8.2kΩ | 8.2kΩ | - | - | 8.2kΩ — matched |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% / ±5% — matched; ARG03BTC8201: Significantly higher precision than target's ±1%.; RT0603BRD078K2L: Significantly higher precision than target's ±1%.; 0603WAJ0822T5E: Much looser tolerance than target's ±1%. |
| Power | 0.1W | 0.1W | 0.1W | 0.1W | 0.1W — Power rating is matched.; ARG03BTC8201: matched; RT0603BRD078K2L: matched; 0603WAJ0822T5E: matched |
| Tcr | ±100ppm/℃ | ±100 ppm/°C | ±25ppm/°C | 25 ppm/°C | ±100 ppm/°C / ±25ppm/°C / 25 ppm/°C / Not specified — matched; ARG03BTC8201: Tighter temperature coefficient, more stable.; RT0603BRD078K2L: Tighter temperature coefficient, more stable.; 0603WAJ0822T5E: TCR is not specified, likely worse than target. |
| Application | Commercial | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive qualified, an upgrade. |
| Technology | Thick Film | - | Thin Film | Thin Film | Thin Film / Thick Film — Different resistor technology; verify if pulse handling or noise characteristics are critical.; RT0603BRD078K2L: Different resistor technology; verify if pulse handling or noise characteristics are critical.; 0603WAJ0822T5E: matched |
Application & sourcing insights
Questions & answers
The best direct alternative is Yageo's AC0603FR-078K2L, which is a pin-compatible match with the added benefit of AEC-Q200 qualification. For a high-precision upgrade, consider Viking Tech's ARG03BTC8201.