# AP4953A

**ALLPOWER ShenZhen Quan Li Semiconductor** · MOSFETs · SOP-8

AP4953A from ALLPOWER ShenZhen Quan Li Semiconductor, in a SOP-8. 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 | S1 | passive | Source of P-channel MOSFET 1; drain-source voltage rating is -20 V. |
| 2 | G1 | input | Gate of P-channel MOSFET 1; gate-source voltage limit is ±12 V, threshold -0.50 V min to -1.0 V max. |
| 3 | S2 | passive | Source of P-channel MOSFET 2; drain-source voltage rating is -20 V. |
| 4 | G2 | input | Gate of P-channel MOSFET 2; gate-source voltage limit is ±12 V, threshold -0.50 V min to -1.0 V max. |
| 5 | D2 | passive | Drain of P-channel MOSFET 2 (shorted with pin 6); continuous drain current is -3.0 A. |
| 6 | D2 | passive | Drain of P-channel MOSFET 2 (shorted with pin 5); pulsed drain current is -12 A. |
| 7 | D1 | passive | Drain of P-channel MOSFET 1 (shorted with pin 8); continuous drain current is -3.0 A. |
| 8 | D1 | passive | Drain of P-channel MOSFET 1 (shorted with pin 7); pulsed drain current is -12 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ALLPOWER ShenZhen Quan Li Semiconductor |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `AP4953A`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ap4953a-etched.step` / `ap4953a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap4953a.step` / `ap4953a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ALLPOWER ShenZhen Quan Li Semiconductor datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944872208678912) (6 pp, sha256 `b21d7c1a57600380`, retrieved 2026-10-09, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/ap4953a-datasheet.pdf)