component
MDD50N03D
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MDD Microdiode Semiconductor MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MDD50N03D
MDD Microdiode Semiconductor · MOSFETs · TO-252
MDD50N03D from MDD Microdiode Semiconductor, in a TO-252. 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 MOSFET; gate-source voltage is rated at ±20 V (VGS), and the gate threshold voltage is 1.0 V min to 2.2 V typ at VDS=VGS, ID=250μA. |
| 2 | Drain | passive | Drain of the MOSFET; drain-source voltage is rated at 30 V (VDS) and continuous drain current at 50 A, with the datasheet noting the drain pins as the solder mounting surface for thermal reference. |
| 3 | Source | passive | Source of the MOSFET; the body diode source-drain current is rated at 50 A continuous and 150 A pulsed, with a typical forward voltage of 1.2 V at IS=15A, VGS=0V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD Microdiode Semiconductor |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MDD50N03D - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
mdd50n03d-etched.step/mdd50n03d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mdd50n03d.step/mdd50n03d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD Microdiode Semiconductor datasheet (6 pp, sha256
553f4cddc841e357, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# MDD50N03D
**MDD Microdiode Semiconductor** · MOSFETs · TO-252
MDD50N03D from MDD Microdiode Semiconductor, in a TO-252. 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 MOSFET; gate-source voltage is rated at ±20 V (VGS), and the gate threshold voltage is 1.0 V min to 2.2 V typ at VDS=VGS, ID=250μA. |
| 2 | Drain | passive | Drain of the MOSFET; drain-source voltage is rated at 30 V (VDS) and continuous drain current at 50 A, with the datasheet noting the drain pins as the solder mounting surface for thermal reference. |
| 3 | Source | passive | Source of the MOSFET; the body diode source-drain current is rated at 50 A continuous and 150 A pulsed, with a typical forward voltage of 1.2 V at IS=15A, VGS=0V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD Microdiode Semiconductor |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `MDD50N03D`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `mdd50n03d-etched.step` / `mdd50n03d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mdd50n03d.step` / `mdd50n03d.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/8756679309387931648) (6 pp, sha256 `553f4cddc841e357`, 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/mdd50n03d-datasheet.pdf)