# A3144E-JSM

**JSMSEMI** · Hall Switches · SOT-23

A3144E-JSM from JSMSEMI, in a SOT-23. 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 | VSUP | power_in | Supply pin, rated for an operating supply voltage of 3.8 V to 40 V, with an absolute maximum supply voltage rating of -60 V to 60 V. |
| 2 | GND | power_in | Ground pin. |
| 3 | VOUT | output | Open-collector output that requires an external pull-up resistor, with absolute maximum sink current of 40 mA and output voltage of -0.5 V to 60 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOT-23 |
| Category | Magnetic Sensors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `A3144E-JSM`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `a3144e-jsm-etched.step` / `a3144e-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `a3144e-jsm.step` / `a3144e-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603067528507629568) (6 pp, sha256 `0862741ef8bf3f73`, 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-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/a3144e-jsm-datasheet.pdf)