# Metal-alloy power inductor

Shielded metal-alloy SMD power inductors in the Würth Elektronik WE-MAPI sizes: the body and the two terminals underneath. The inductor is centred on the origin, sitting on the XY plane, with the terminals at the -X and +X ends. Inductance doesn't change the outside of a size.

## Source

Würth Elektronik WE-MAPI datasheets, page 1, Dimensions [mm]. One datasheet was read per size; the copies read are the ones hosted by oemstron at `https://media.oemstron.com/oemstron/datasheetfiles/<order code>.pdf`.

| Size | Order code read | Revision | Date | Length | Width | Height max | Terminal |
|---|---|---|---|---|---|---|---|
| 2010 | 74438343012 | 001.002 | 2018-02-01 | 2.0 ± 0.2 | 1.6 ± 0.2 | 1.0 | 0.6 ± 0.2 |
| 2506 | 74438321010 | 001.002 | 2015-11-10 | 2.5 ± 0.2 | 2 ± 0.2 | 0.6 | 0.7 ± 0.2 |
| 2508 | 74438322022 | 001.002 | 2015-11-10 | 2.5 ± 0.2 | 2 ± 0.2 | 0.8 | 0.7 ± 0.2 |
| 2510 | 74438323010 | 001.002 | 2015-11-10 | 2.5 ± 0.2 | 2 ± 0.2 | 1 | 0.7 ± 0.2 |
| 2512 | 74438324010 | 001.001 | 2015-11-10 | 2.5 ± 0.2 | 2 ± 0.2 | 1.2 | 0.7 ± 0.2 |
| 3012 | 74438334047 | 001.002 | 2015-11-10 | 3 ± 0.2 | 3 ± 0.2 | 1.2 | 1.2 max |
| 3015 | 74438335330 | 001.002 | 2015-11-10 | 3 ± 0.2 | 3 ± 0.2 | 1.5 | 1.2 max |
| 3020 | 744383360047 | 001.001 | 2015-11-10 | 3 ± 0.2 | 3 ± 0.2 | 2 | 1.2 max |
| 4020 | 74438356033 | 001.000 | 2015-11-10 | 4.1 ± 0.2 | 4.1 ± 0.2 | 2.1 | 1.25 ± 0.2 |
| 4030 | 74438357022 | 001.000 | 2016-06-21 | 4.1 ± 0.2 | 4.1 ± 0.2 | 3.1 | 1.25 ± 0.2 |

The terminals run the full width at each end. The 4020 and 4030 terminals have their outer corners cut back: the outer 0.45 ± 0.2 is 2.4 ± 0.2 wide. The model uses the middle of each range and the maximum height, so read it as an envelope; the 30xx terminal length is printed as 1.2 maximum only, and the model uses 1.2.

**Proportions, for looks only:** the terminals' 0.1 mm thickness under the body.

Sizes 1610, 3010, 5020 and 5030 aren't here yet (no datasheet copy read), nor Würth's other series; see `COVERAGE.md`.