# DS9801AS3R

**DSTECH** · Surge Protection Devices (SPDs) · SOT-23-3

DS9801AS3R from DSTECH, in a SOT-23-3. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground. |
| 2 | VIN | power_in | Input of supply voltage with maximum withstand voltage to 36V. |
| 3 | VOUT | power_out | Output pin with 100mΩ ON resistance and integrated overvoltage, overcurrent, and overtemperature protection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | DSTECH |
| Package | SOT-23-3 |
| Category | Circuit Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `DS9801AS3R`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `ds9801as3r-etched.step` / `ds9801as3r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds9801as3r.step` / `ds9801as3r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [DSTECH datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908606151663616) (11 pp, sha256 `55b0086bdcfaa5b7`, retrieved 2026-09-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/ds9801as3r-datasheet.pdf)