# MDA4020-3R3M: 3.3 uH 3.5 A Molded Power Inductor

Alloy-molded power inductor suited to point-of-load synchronous buck converters. 3.3 uH at +/-20 percent with a 3.5 A temperature-rise rating, 3.1 A saturation current and 65 mohm DCR, in a shielded 4.5 x 4.1 mm molded body.

## Key specs

| Parameter | Value |
|---|---|
| Inductance | 3.3 uH +/-20 percent |
| Rated current | 3.5 A (temperature rise) |
| Saturation current | 3.1 A |
| DC resistance | 65 mohm |
| Body | 4.5 x 4.1 mm molded, shielded |

## Where it is used

The buck output inductor (L101) of the AP62300TWU-7 3.3 V buck stage on the [Large Automotive Eth Switch Molecule](https://wiki.adom.inc/adom/large-automotive-eth-switch-molecule). The footprint in this package uses the CKCS4020 land pattern, which matches the 4020-size molded body.

## Ordering

| Vendor | Part number |
|---|---|
| LCSC / JLCPCB | C2847470 |
| KOHERelec | MDA4020-3R3M |

## Files

| File | What |
|---|---|
| `mda4020-3r3m.kicad_sym` | KiCad symbol (2 pins) |
| `L_Cenker_CKCS4020.kicad_mod` | KiCad footprint |
| `mda4020-3r3m.step` / `mda4020-3r3m.glb` | 3D model |
| `mda4020-3r3m.lbr` | Fusion 360 / EAGLE library |
| `mda4020-3r3m.adom-lbr.json` | adom-lbr canonical JSON |