RTT0249R9FTH
RALEC
Needs validationhigh risk
Matches package and power with a tighter tolerance, but lacks the target's critical AEC-Q200 qualification.
Best Alternatives to AC0402JR-0750RL
Finding a substitute for the Yageo AC0402JR-0750RL 50Ω resistor requires careful review of its AEC-Q200 automotive qualification. While alternatives may match form and basic electricals, using a non-qualified part carries significant risk in automotive designs.
AI replacement insight
Electrical riskhigh
Lack of AEC-Q200 qualification poses a significant reliability risk in automotive environments.
Package risklow
All candidates match the 0402 package, ensuring physical compatibility.
Can it be replaced directly?
No direct, verified drop-in replacement is identified among the candidates, as none share the target's critical AEC-Q200 qualification.
Best replacement path
Search for an alternative 50Ω, 5% or better, 1/16W, 0402 resistor that is also AEC-Q200 qualified, such as from other manufacturers' automotive series.
Main risk
Using a non-automotive grade component in an application that requires AEC-Q200 reliability standards.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | AC0402JR-0750RL | RTT0249R9FTH | RT0402BRD0749R9L | RT0402BRE0749R9L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Matches form and fit.; RT0402BRD0749R9L: Matches form and fit.; RT0402BRE0749R9L: Matches form and fit.; WR04X510JTL: Matches form and fit. |
| Resistance | 50Ω | 49.9Ω | - | - | 49.9Ω / 51Ω — Negligible difference from 50Ω.; WR04X510JTL: 2% higher resistance, within target tolerance. |
| Tolerance | ±5% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% / ±5% — Tighter tolerance is an upgrade.; RT0402BRD0749R9L: High-precision upgrade.; RT0402BRE0749R9L: High-precision upgrade.; WR04X510JTL: Tolerance matches. |
| Power | 1/16W | 1/16W | - | - | 1/16W — Power rating matches. |
| Application | AEC-Q200 | None | None | None | None — Lacks automotive qualification.; RT0402BRD0749R9L: Lacks automotive qualification.; RT0402BRE0749R9L: Lacks automotive qualification.; WR04X510JTL: Lacks automotive qualification. |
| Tcr | Not specified | - | 25 ppm/°C | - | 25 ppm/°C — Superior temperature stability. |
| Technology | Thick Film | - | Thin Film | Thin Film | Thin Film — May affect noise/pulse performance.; RT0402BRE0749R9L: May affect noise/pulse performance. |
Application & sourcing insights
Questions & answers
The best alternative would be another AEC-Q200 qualified 0402 resistor with 50Ω resistance, ±5% or better tolerance, and a 1/16W power rating. None of the listed candidates are AEC-Q200 qualified.