# JSM3144UA

**JSMSEMI** · Hall Switches · TO-92S

JSM3144UA from JSMSEMI, in a TO-92S. 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 for the Hall switch, operating from 3.8 V to 40 V, with absolute maximum supply voltage VDD of -60 V to 60 V. |
| 2 | GND | power_in | Ground pin for the device. |
| 3 | VOUT | output | Open-collector output that requires an external pull-up resistor, with absolute maximum output voltage of -0.5 V to 60 V and maximum sink current of 40 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | TO-92S |
| Category | Magnetic Sensors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VSUP | 3.8 |  | 40 | V |  | 3 |
| Operating current | ISUP |  | 6 | 9 | mA | VSUP=5V | 3 |
| Output leakage current | Ile |  |  | 10 | uA |  | 3 |
| Output saturation voltage | Vsat |  |  | 0.4 | V | Iout=20mA,导通状态 | 3 |
| Output current sink | Isink | 30 |  |  | mA |  | 3 |
| Output rise time | Tr |  |  | 1 | us | CL=20pF | 3 |
| Output fall time | Tf |  |  | 1.5 | us | CL=20pF | 3 |
| Operating point | Bop | 30 | 60 | 80 | Gauss | CL=20pF | 3 |
| Release point | Brp | 10 | 40 | 60 | Gauss |  | 3 |
| Hysteresis | Bhys | 10 | 20 | 40 | Gauss |  | 3 |
| Power supply voltage (absolute maximum) | VDD | -60 |  | 60 | V |  | 2 |
| Output current sink (absolute maximum) | Isink | 0 |  | 40 | mA |  | 2 |
| Output voltage (absolute maximum) | Vout | -0.5 |  | 60 | V |  | 2 |
| Operating temperature range (absolute maximum) | Ta | -40 |  | 125 | ℃ |  | 2 |
| Storage temperature range | Ts | -50 |  | 165 | ℃ |  | 2 |
| Operating ambient temperature (ordering information) | TA | -40 |  | 125 | ℃ | JSM3144UA TO92S, 工作环境 TA | 2 |

## CAD (KiCad official)

- Symbol: `JSM3144UA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `jsm3144ua-etched.step` / `jsm3144ua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jsm3144ua.step` / `jsm3144ua.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/8603115137255956480) (6 pp, sha256 `e4f412263d302f0b`, retrieved 2026-10-18, 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/jsm3144ua-datasheet.pdf)