# MDD3407

**MDD Microdiode Semiconductor** · MOSFETs · SOT-23

MDD3407 from MDD Microdiode Semiconductor, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Gate | input | Gate of the P-channel MOSFET; the datasheet gives the gate-source voltage limit as ±20 V (VGS), with a -5V logic-level drive rating for switching. |
| 2 | Source | passive | Source of the MOSFET; the datasheet gives the body-diode source current as -2 A maximum (ISD). |
| 3 | Drain | passive | Drain of the MOSFET; the datasheet gives drain-source voltage as -30 V and continuous drain current as -4.1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MDD Microdiode Semiconductor |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MDD3407`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mdd3407-etched.step` / `mdd3407-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mdd3407.step` / `mdd3407.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [MDD Microdiode Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918497346379776) (5 pp, sha256 `edba403f6efba589`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/mdd3407-datasheet.pdf)