RC0603FR-0749K9L
Yageo
Needs validationmedium risk
RC0603FR-0749K9L may fit 0603 layouts if 49.9 kΩ and non-AEC use are acceptable.
Best Alternatives to AC0603FR-0752K3L
AC0603FR-0752K3L is a 52.3 kΩ AEC-Q200 0603 thick film resistor. Alternatives need resistance and automotive-grade review.
AI replacement insight
Electrical riskmedium
value may alter bias or gain
Package risklow
only RC0603 keeps 0603
Firmware risklow
passive resistor
Sourcing riskmedium
availability not assessed
Can it be replaced directly?
No verified pin-compatible replacement is supported by the provided evidence.
Best replacement path
Use RC0603FR-0749K9L only if 49.9 kΩ and non-AEC use are acceptable.
Main risk
Resistance change and missing AEC-Q200 evidence.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | AC0603FR-0752K3L | RC0603FR-0749K9L | RC0805FR-0751KL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | - | 0805 — not same footprint | |
| Pinout | 2 pins | 2 pins | - | 2 pins — 2-terminal part | |
| Resistance | 52.3 kΩ | 49.9 kΩ | - | 51 kΩ — -2.5% | |
| Tolerance | ±1% | ±1% | - | ±1% — same | |
| Application | AEC-Q200 | not shown | - | not shown — RC series | |
| Power | 1/10 W | - | 1/8 W | 1/8 W — higher rating | |
| Voltage | 75 V | - | 150 V | 150 V — higher rating |
Application & sourcing insights
Questions & answers
RC0603FR-0749K9L is the closest kept option, but it is 49.9 kΩ and lacks shown AEC-Q200 evidence.