
A pin-compatible predecessor from the same series, but with lower saturation current and higher DCR.
Finding a replacement for the TDK VLS6045EX-101M 100µH power inductor involves a trade-off. While no direct drop-in upgrades are available, several functional alternatives offer superior electrical performance but require board layout changes. Pin-compatible options exist but are typically electrical downgrades.
Several alternatives are electrically superior but require a PCB layout change due to different package sizes.
Pin-compatible options have lower current ratings and higher resistance, risking saturation or overheating.
The target part is active, but alternatives offer a diverse supply chain from manufacturers like PROD and Sunlord.
There are no verified, drop-in upgrades for the VLS6045EX-101M. Pin-compatible options like SWPA6045S101MT are electrical downgrades and require careful analysis.
No direct upgrade exists. The best path is a functional alternative like PSPMAA0605H-101M-IGF if the board can accommodate a slightly different footprint, offering superior electrical performance.
The primary risk is either physical incompatibility with functional alternates or reduced performance and reliability with pin-compatible downgrades.

A pin-compatible predecessor from the same series, but with lower saturation current and higher DCR.
| Feature / factor | VLS6045EX-101M | VLS6045AF-101M | PSPHAQ127-101M | PSPMAA0605H-101M-IGF | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 6045 | 6045 | 12x12mm | 0605 (6.6x7.1mm) | 6045 / 12x12mm / 0605 (6.6x7.1mm) / 1045 (10.2x10.6mm) — Same package family and dimensions.; PSPHAQ127-101M: Candidate is significantly larger, requires board redesign.; PSPMAA0605H-101M-IGF: Slightly larger footprint, may not fit on existing pads.; PSPMAC1045H-101M-ANP: Candidate is significantly larger, requires board redesign. |
| Saturation Current A | 1.1A | 1.0A | 2.2A | 2.0A | 1.0A / 2.2A / 2.0A / 4.0A — Lower saturation current reduces operating margin.; PSPHAQ127-101M: Higher saturation current provides more margin.; PSPMAA0605H-101M-IGF: Higher saturation current provides more margin.; PSPMAC1045H-101M-ANP: Significantly higher saturation current provides more margin. |
| Dcr Ohm | 0.47Ω | 0.527Ω | 0.22Ω | 0.43Ω | 0.527Ω / 0.22Ω / 0.43Ω / 0.25Ω — Higher DCR increases power loss.; PSPHAQ127-101M: Lower DCR improves efficiency.; PSPMAA0605H-101M-IGF: Slightly lower DCR improves efficiency.; PSPMAC1045H-101M-ANP: Lower DCR improves efficiency. |
| Lifecycle | Active | NRND | - | - | NRND — Not recommended for new designs. |
| Current A | 0.9A | - | 1.7A | 1.7A | 1.7A / 2.0A — Higher rated current allows for cooler operation.; PSPMAA0605H-101M-IGF: Higher rated current allows for cooler operation.; PSPMAC1045H-101M-ANP: Higher rated current allows for cooler operation. |
There is no single 'best' alternative. For an electrical upgrade, PSPMAA0605H-101M-IGF is a strong candidate if you can verify its slightly different footprint fits your board. If you must maintain the exact footprint, you must accept a downgrade like SWPA6045S101MT and re-verify your circuit's performance.