AC0603FR-0718KL
Yageo
Needs validationhigh risk
An electrical upgrade (AEC-Q200, better TCR/power) but in a larger 0603 package requiring layout changes.
Best Alternatives to RC0201FR-0718KL
Finding a replacement for the Yageo RC0201FR-0718KL 18kΩ resistor involves considering package size and electrical parameters. While several functional alternatives exist, none are direct drop-in replacements due to package differences.
AI replacement insight
Package riskhigh
Target is 0201; all viable alternatives are larger (0603) or through-hole, requiring board redesign.
Electrical risklow
Most candidates offer superior or similar electrical performance, but some have different resistance values that need checking.
Can it be replaced directly?
No direct drop-in replacement was found. All candidates require a PCB layout change due to package differences.
Best replacement path
functional_alternate
Main risk
Physical package mismatch is the primary risk, preventing a direct drop-in replacement.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | RC0201FR-0718KL | AC0603FR-0718KL | MFR-25FTE52-18K | RC0603FR-0716K5L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0201 | 0603 | Axial | 0603 | 0603 / Axial — Larger SMD package, requires layout change.; MFR-25FTE52-18K: Through-hole vs. 0201 SMD. Not interchangeable.; RC0603FR-0716K5L: Larger SMD package, requires layout change.; RC0603FR-0716K9L: Larger SMD package, requires layout change. |
| Resistance | 18kΩ | 18kΩ | 18kΩ | 16.5kΩ | 18kΩ / 16.5kΩ / 16.9kΩ — matched; MFR-25FTE52-18K: matched; RC0603FR-0716K5L: -8.3% lower resistance. Requires circuit validation.; RC0603FR-0716K9L: -6.1% lower resistance. Requires circuit validation. |
| Power | 0.05W | 0.1W | 0.25W | 0.1W | 0.1W / 0.25W — Higher power rating.; MFR-25FTE52-18K: Significantly higher power rating.; RC0603FR-0716K5L: Higher power rating.; RC0603FR-0716K9L: Higher power rating. |
| Tcr | ±200 ppm/°C | ±100 ppm/°C | ±50 ppm/°C | - | ±100 ppm/°C / ±50 ppm/°C — Improved temperature stability.; MFR-25FTE52-18K: Improved temperature stability. |
| Application | General Purpose | AEC-Q200 | - | - | AEC-Q200 — Automotive qualified. |
Application & sourcing insights
Questions & answers
The best alternative depends on your design flexibility. For the closest electrical match, Yageo's AC0603FR-0718KL offers upgraded performance but requires changing the PCB layout from 0201 to 0603.