
FOJAN
A parametric alternative with a slightly higher resistance value (357Ω vs 340Ω).
Finding a substitute for the 0603WAF3400T5E resistor involves balancing trade-offs in resistance, tolerance, and technology. This guide reviews several alternatives to help you make an informed decision.
Resistance and tolerance deviations require circuit analysis. Technology change (thick to thin film) affects pulse handling.
All candidates share the same 0603 package, ensuring physical compatibility.
No exact direct replacement was found. Alternatives have different resistance values, tolerances, or technology. All require engineering review.
For precision, consider an upgrade to a thin film part like RT0603BRD07330RL, but verify technology suitability. For general use, options with slightly different resistance values exist.
The primary risks are mismatch in resistance value, tolerance degradation, or unintended effects from changing from thick to thin film technology.

FOJAN
A parametric alternative with a slightly higher resistance value (357Ω vs 340Ω).
| Feature / factor | 0603WAF3400T5E | FRC0603F3570TS | FRC0603F3600TS | RS-03K3600FT | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 340 Ω | 357 Ω | 360 Ω | 360 Ω | 357 Ω / 360 Ω / 330 Ω — 5.0% higher than target. Verify circuit sensitivity.; FRC0603F3600TS: 5.8% higher than target. Verify circuit sensitivity.; RS-03K3600FT: 5.8% higher than target. Verify circuit sensitivity.; RT0603BRD07330RL: Closer value (-2.9% deviation). |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% / ±0.1% — matched; FRC0603F3600TS: matched; RS-03K3600FT: matched; RT0603BRD07330RL: Significant upgrade. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — matched; FRC0603F3600TS: matched; RS-03K3600FT: matched |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — matched; FRC0603F3600TS: matched; RS-03K3600FT: matched |
| Technology | Thick Film | - | Thick Film | - | Thick Film / Thin Film — matched; RT0603BRD07330RL: Different technology may affect pulse handling. |
| Tcr | Unknown (typ. ±100) | - | - | - | 25 ppm/°C — Excellent temperature stability. |
The best alternative depends on your priority. For higher precision, Yageo's RT0603BRD07330RL is an upgrade but uses different technology. For similar performance, FRC0603F3570TS is close but has a 5% higher resistance.