
A potential form-fit-function alternate with a matching package size and higher current rating; pinout verification is required.
Find functional alternatives and potential replacements for the Sunlord WPN3012H1R0MT 1.0µH power inductor. This guide compares options based on package size, current ratings, and DCR to help you make an informed choice.
Most alternatives are larger. Even the best candidate requires land pattern verification.
All suggested alternatives meet or exceed the target's key electrical specifications like current handling.
Direct replacement for WPN3012H1R0MT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Verify TDK's VLS3012HBX-1R0M, which appears to have a matching 3x3mm package and superior current ratings. If board space is not a constraint, several higher-performance options from Sunlord exist.
The primary risk is physical incompatibility. Most alternatives are in larger packages requiring a PCB redesign. The closest match still requires pinout verification.

A potential form-fit-function alternate with a matching package size and higher current rating; pinout verification is required.
| Feature / factor | WPN3012H1R0MT | VLS3012HBX-1R0M | MWSA0518S-1R0MT | WPN4020H1R0MT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3.0x3.0x1.2mm | 3.0x3.0x1.2mm | 5.2x5.4x1.8mm | 4.0x4.0x2.0mm | 3.0x3.0x1.2mm / 5.2x5.4x1.8mm / 4.0x4.0x2.0mm — Package dimensions match, but land pattern requires verification.; MWSA0518S-1R0MT: Larger package, not a drop-in replacement.; WPN4020H1R0MT: Larger package, not a drop-in replacement. |
| Pinout | 2 | null | - | - | null — Pin count missing in catalog data. Datasheet review required. |
| Current | 2.7A | 4.62A | 8.0A | 5.8A | 4.62A / 8.0A / 5.8A — Higher heat rating current (Irms).; MWSA0518S-1R0MT: Significantly higher heat rating current (Irms).; WPN4020H1R0MT: Significantly higher heat rating current (Irms). |
| Saturation Current A | 5.4A | 5.5A | 9.0A | 8.7A | 5.5A / 9.0A / 8.7A — Slightly higher saturation current (Isat).; MWSA0518S-1R0MT: Significantly higher saturation current (Isat).; WPN4020H1R0MT: Significantly higher saturation current (Isat). |
| Dcr Ohm | 0.045Ω | 0.047Ω | 0.017Ω | 0.026Ω | 0.047Ω / 0.017Ω / 0.026Ω — Slightly higher DCR, may have minor efficiency impact.; MWSA0518S-1R0MT: Much lower DCR improves efficiency.; WPN4020H1R0MT: Lower DCR improves efficiency. |
Verified drop-in options for WPN3012H1R0MT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.