FRC1206F3900TS
FOJAN
Needs validationmedium risk
A strong functional match from FOJAN with identical core parameters; requires power dissipation review.
Best Alternatives to RS-06K3900FT
RS-06K3900FT is a general-purpose 390Ω 1% 0.25W resistor in a 1206 package. While functional replacements exist, careful verification of in-circuit power dissipation is recommended for all alternatives.
AI replacement insight
Electrical riskmedium
Power dissipation must be verified by the user for all alternatives.
Package risklow
All suggested alternatives use the same 1206 package.
Can it be replaced directly?
Yes, parts like Yageo RC1206FR-07390RL are functionally identical but require the user to verify power dissipation requirements.
Best replacement path
Use a functional alternative with identical core parameters like Yageo RC1206FR-07390RL, but confirm power dissipation.
Main risk
Power rating. While candidates match the 0.25W rating, they lack a conservative safety margin, posing a risk in high-stress applications.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RS-06K3900FT | FRC1206F3900TS | RC1206FR-07390RL | FRC1206F3600TS | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 390 Ω | 390 Ω | 390 Ω | 360 Ω | 390 Ω / 360 Ω — Exact match.; RC1206FR-07390RL: Exact match.; FRC1206F3600TS: Resistance is ~7.7% lower than target. Verify circuit impact.; RC1206FR-07360RL: Resistance is ~7.7% lower than target. Verify circuit impact. |
| Power | 0.25 W | 0.25 W | 0.25 W | 0.25 W | 0.25 W — Matches rating, but lacks recommended 1.5x safety margin. Verify circuit dissipation.; RC1206FR-07390RL: Matches rating, but lacks recommended 1.5x safety margin. Verify circuit dissipation.; FRC1206F3600TS: Matches rating, but lacks recommended 1.5x safety margin.; RC1206FR-07360RL: Matches rating, but lacks recommended 1.5x safety margin. |
| Tolerance | 1% | 1% | 1% | - | 1% — Exact match.; RC1206FR-07390RL: Exact match. |
| Package | 1206 | 1206 | 1206 | 1206 | 1206 — Same package size.; RC1206FR-07390RL: Same package size.; FRC1206F3600TS: Same package size.; RC1206FR-07360RL: Same package size. |
| Tcr | ±100ppm/℃ | - | ±100 ppm/°C | - | ±100 ppm/°C — Exact match. |
Application & sourcing insights
Questions & answers
Yageo's RC1206FR-07390RL is a strong functional alternative, matching resistance, tolerance, and package. However, it is crucial to verify your circuit's power dissipation as it does not have an extended safety margin.