# SL44E-3

**Slkor SLKORMICRO Elec** · Hall Switches · SOT-23

SL44E-3 from Slkor SLKORMICRO Elec, 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 for the sensor, specified for 3.8 V to 40 V operation with an absolute maximum VDD of 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 output sink current rated at 30 mA (absolute maximum 40 mA) and output voltage absolute maximum of 60 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| 电源电压 (Supply voltage) | VSUP | 3.8 |  | 40 | V |  | 3 |
| 工作电流 (Operating current) | ISUP | 6 |  | 9 | mA | VSUP=5V | 3 |
| 输出漏电流 (Output leakage current) | Ile |  |  | 10 | uA |  | 3 |
| 输出饱和电压 (Output saturation voltage) | Vsat |  |  | 0.4 | V | Iout=20mA,导通状态 | 3 |
| 输出电流沉 (Output sink current) | Isink | 30 |  |  | mA |  | 3 |
| 输出上升时间 (Output rise time) | Tr |  |  | 1 | us | CL=20pF | 3 |
| 输出下降时间 (Output fall time) | Tf |  |  | 1.5 | us | CL=20pF | 4 |
| 工作点 (Operating point) | Bop | 33 | 50 | 60 | Gauss | CL=20pF | 4 |
| 释放点 (Release point) | Brp | 13 | 30 | 50 | Gauss |  | 4 |
| 回差 (Hysteresis) | Bhys | 10 | 20 | 40 | Gauss |  | 4 |
| 电源电压 (Supply voltage, absolute maximum) | VDD | -0.3 |  | 60 | V |  | 3 |
| 输出电流 (Output sink current, absolute maximum) | Isink | 0 |  | 40 | mA |  | 3 |
| 输出电压 (Output voltage, absolute maximum) | Vout | -0.5 |  | 60 | V |  | 3 |
| 工作温度范围 (Operating temperature range) | Ta | -40 |  | 125 | ℃ |  | 3 |
| 储存温度范围 (Storage temperature range) | Ts | -50 |  | 165 | ℃ |  | 3 |

## CAD (KiCad official)

- Symbol: `SL44E-3`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `sl44e-3-etched.step` / `sl44e-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl44e-3.step` / `sl44e-3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor SLKORMICRO Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589905525799620608) (8 pp, sha256 `6796457918ba9443`, retrieved 2026-10-17, 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/sl44e-3-datasheet.pdf)