
AEC-Q200 qualified version of the target with identical electrical and mechanical specifications.
The TDK VLS6045EX-4R7M is a shielded, wire-wound power inductor offering 4.7µH inductance with a 5.8A saturation current. Its 6045 package makes it suitable for compact, high-current DC-DC converters in industrial and automotive applications.
Many functional alternatives are in different packages, requiring a new PCB layout.
Some alternatives have lower current ratings or higher DCR, impacting performance and efficiency.
Switching from TDK to other vendors requires re-qualification and supply chain validation.
Yes, VLS6045EX-4R7M-H is a direct, pin-for-pin replacement for VLS6045EX-4R7M. It is an upgrade in terms of qualification (AEC-Q200) with identical performance.
The most reliable replacement is VLS6045EX-4R7M-H, which is the official AEC-Q200 automotive-grade version of the same part from TDK. It offers a direct, risk-free upgrade.
The primary risk when considering other alternatives is threefold: package incompatibility requiring board redesign, lower current ratings causing performance issues or failure, and lack of automotive-grade (AEC-Q200) qualification.

AEC-Q200 qualified version of the target with identical electrical and mechanical specifications.
| Feature / factor | VLS6045EX-4R7M | VLS6045EX-4R7M-H | CYA0650-4.7UH | SPM6530T-4R7M-HZ | Compatibility / risk |
|---|---|---|---|---|---|
| Application | Commercial/Industrial | AEC-Q200 | Commercial | AEC-Q200 | AEC-Q200 / Commercial — Candidate is automotive grade, an upgrade.; CYA0650-4.7UH: Not AEC-Q200 qualified.; SPM6530T-4R7M-HZ: Matches automotive grade.; SMNR6045-4R7MT: Not AEC-Q200 qualified. |
| Package | 6045 (6.0x6.0x4.5mm) | 6045 (6.0x6.3x4.5mm) | 6.5x6.5x5.0mm | 7.1mm x 6.5mm | 6045 (6.0x6.3x4.5mm) / 6.5x6.5x5.0mm / 7.1mm x 6.5mm — Identical package and footprint.; CYA0650-4.7UH: Package dimensions differ slightly, verify footprint.; SPM6530T-4R7M-HZ: Different package size, requires layout change.; SMNR6045-4R7MT: Package size matches. |
| Current | 5.8 A | 5.8 A | 8.0 A | 6.2 A | 5.8 A / 8.0 A / 6.2 A / 3.30 A — Saturation current (Isat) is identical.; CYA0650-4.7UH: Higher saturation current (Isat).; SPM6530T-4R7M-HZ: Higher saturation current (Isat).; SMNR6045-4R7MT: Temperature rise current (Itemp) is ~21% lower. |
| Resistance | 0.027 Ω | 0.027 Ω | 0.026 Ω | 0.0394 Ω | 0.027 Ω / 0.026 Ω / 0.0394 Ω — DC Resistance (DCR) is identical.; CYA0650-4.7UH: Slightly lower DCR is an improvement.; SPM6530T-4R7M-HZ: Higher DCR will increase power loss. |
The best alternative is VLS6045EX-4R7M-H. It is the official AEC-Q200 qualified version from TDK with identical electrical and mechanical specifications, making it a seamless upgrade.