FRC0603F40R2TS
FOJAN
Needs validationlow risk
This FOJAN resistor is a strong pin-to-pin match with identical key parameters and package.
Best Alternatives to 0603WAF402JT5E
Find verified substitutes for the UNI ROYAL 0603WAF402JT5E, a 40.2Ω 1% 0.1W 0603 thick film resistor. Review pin-compatible and parametric alternatives from FOJAN, Yageo, and others.
AI replacement insight
Package risklow
All suggested alternatives use the same 0603 package, ensuring physical compatibility.
Electrical riskmedium
Risk is low for the pin-to-pin match, but medium for parametric alternatives due to resistance differences.
Can it be replaced directly?
Direct replacement for 0603WAF402JT5E should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The strongest alternative is FRC0603F40R2TS from FOJAN, which matches all key electrical and physical parameters.
Main risk
The main risk is selecting a parametric alternative with a different resistance value (e.g., 39Ω or 43Ω) without verifying its impact on circuit performance.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | 0603WAF402JT5E | FRC0603F40R2TS | FRC0603F39R0TS | RC0603FR-0743RL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 (1608 Metric) | 0603 | 0603 | 0603 | 0603 — Matches target package size.; FRC0603F39R0TS: Matches target package size.; RC0603FR-0743RL: Matches target package size. |
| Resistance | 40.2 Ω | 40.2 Ω | 39.0 Ω | 43.0 Ω | 40.2 Ω / 39.0 Ω / 43.0 Ω — Resistance value is identical.; FRC0603F39R0TS: Resistance is ~3% lower. Verify circuit impact.; RC0603FR-0743RL: Resistance is ~7% higher. Verify circuit impact. |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% — Tolerance is identical.; FRC0603F39R0TS: Tolerance is identical.; RC0603FR-0743RL: Tolerance is identical. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Power rating is identical.; FRC0603F39R0TS: Power rating is identical.; RC0603FR-0743RL: Power rating is identical. |
| Technology | Thick Film | Thick Film | - | - | Thick Film — Resistor technology is the same. |
Application & sourcing insights
Questions & answers
Verified drop-in options for 0603WAF402JT5E 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.