0603WAF3900T5E
UNI-ROYAL
Needs validationmedium risk
Functional alternative with higher power rating but in a larger 0603 package requiring a layout change.
Best Alternatives to RC0402FR-07390RL
Searching for a replacement for the Yageo RC0402FR-07390RL resistor? This 390Ω, 1%, 0.0625W 0402 resistor has several functional and parametric alternatives. This guide helps you navigate the options and their associated risks.
AI replacement insight
Electrical riskmedium
Power rating is a common constraint; many options do not meet the 1.5x safety margin.
Package riskhigh
Alternatives that meet the power rule are in larger packages (0603, 0805), requiring layout changes.
Can it be replaced directly?
No direct drop-in replacement that meets the 1.5x power safety margin has been identified. UNI-ROYAL 0402WGF3900TCE is pin-compatible but requires power dissipation analysis.
Best replacement path
Upgrade to a larger package (0603 or 0805) for a higher power rating, or use a pin-compatible 0402 part after verifying power dissipation.
Main risk
Package mismatch for higher-power parts and insufficient power safety margin for pin-compatible parts.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RC0402FR-07390RL | 0603WAF3900T5E | 0805W8F3900T5E | RC0805FR-07390RL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0603 | - | - | 0805 (2012 metric) — Larger package requires layout change. |
| Resistance | 390Ω | 390Ω | - | - | 390Ω — Matches target resistance. |
| Power | 0.0625W | 0.1W | - | - | 0.125W — Higher power rating meets safety margin. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | ±100 ppm/°C — Matches target TCR. |
| Tolerance | ±1% | - | - | - | — |
Application & sourcing insights
Questions & answers
For applications that can use a larger footprint, Yageo's RC0805FR-07390RL offers the same specs with a higher power rating. If 0402 is required, UNI-ROYAL's 0402WGF3900TCE is a form-fit match but requires design review for power dissipation.