# STPS4S200B-TR

**STMicroelectronics** · Schottky Diodes · DPAK

STPS4S200B-TR from STMicroelectronics, in a DPAK. 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 | A | passive | Anode of the 200 V, 4 A Schottky rectifier. |
| 2 | K | passive | Cathode, connected to the exposed tab (thermal pad) of the DPAK; the 3D view labels it K. |
| 3 | NC | unconnected | No connection; the DPAK lead is labelled NC in the device picture. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DPAK |
| Category | Diodes |
| Pins | 3 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper |  | ambient versus copper surface under each lead | 4 |

## CAD (KiCad official)

- Symbol: `STPS4S200B-TR`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: DPAK (KiCad packages3D, STEP)
- 3D model files: `stps4s200b-tr-etched.step` / `stps4s200b-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stps4s200b-tr.step` / `stps4s200b-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903872660586496) (12 pp, sha256 `2d717ac7bfd879a6`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/stps4s200b-tr-datasheet.pdf)