# ASDM20P09ZB-R

**Ascend** · MOSFETs · SOT-23-3

ASDM20P09ZB-R from Ascend, in a SOT-23-3. 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 | G | input | Gate; controls the P-channel MOSFET, with a gate-source voltage limit of ±12 V and a threshold of -0.4 to -1.0 V at ID = -250 µA. |
| 2 | S | passive | Source; P-channel source terminal, with drain-source voltage rated to -20 V and continuous drain current of -9 A at TC = 25 °C. |
| 3 | D | passive | Drain; P-channel drain terminal, with VDSS of -20 V, pulsed drain current of -15 A and RDS(on) below 21 mΩ at VGS = -4.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Ascend |
| Package | SOT-23-3 |
| Category | Transistors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `ASDM20P09ZB-R`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `asdm20p09zb-r-etched.step` / `asdm20p09zb-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asdm20p09zb-r.step` / `asdm20p09zb-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Ascend datasheet](docs/asdm20p09zb-r-datasheet.pdf) (7 pp, sha256 `5288919391a75624`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/asdm20p09zb-r-datasheet.pdf)