# KTH1702AE-ST3

**CONNTEK** · Hall Switches · SOT-23-3L

KTH1702AE-ST3 from CONNTEK, in a SOT-23-3L. 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 | VDD | power_in | Supply input, operating over 1.8 V to 5.5 V with an absolute maximum of 6 V; a 1 µF capacitor between VDD and GND is recommended close to the pin to filter supply noise. |
| 2 | OUTPUT | output | Open-drain output that goes low when the magnetic field exceeds the operate point BOP and stays low until the field drops below the release point BRP, when it goes high; an external pull-up is needed. |
| 3 | GND | power_in | Ground pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CONNTEK |
| Package | SOT-23-3L |
| 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 | VDD | 1.8 |  | 5.5 | V | 工作状态 | 6 |
| Output low voltage | VOL |  | 0.05 | 0.15 | V | IOUT=1mA，/B/>/Bop/ | 6 |
| Magnetic operate point, south pole (E version) | BOPS | 26 | 36 | 46 | Gauss | TA=+25℃， VDD=1.8V | 7 |
| Magnetic release point, south pole (E version) | BRPS | 10 | 20 | 30 | Gauss | TA=+25℃， VDD=1.8V | 7 |
| Magnetic operate point, north pole (E version) | BOPN | -46 | -36 | -26 | Gauss | TA=+25℃， VDD=1.8V | 7 |
| Magnetic release point, north pole (E version) | BRPN | -30 | -20 | -10 | Gauss | TA=+25℃， VDD=1.8V | 7 |
| Average current | IDD(AVG) |  | 0.9 |  | uA | TA=+25℃， VDD=1.8V | 6 |
| Awake state current | IDD(Awake) |  | 2 |  | mA | TA=+25℃， VDD=1.8V | 6 |
| Sleep state current | IDD(Sleep) |  | 0.4 |  | uA | TA=+25℃， VDD=1.8V | 6 |
| Wake-up time | TAWAKE |  | 10 |  | μs | 工作状态 | 6 |
| Period | TPERIOD |  | 40 |  | ms | 工作状态 | 6 |
| Magnetic hysteresis (E version) | BHY |  | 16 |  | Gauss | /BOPX/-/BRPX/ | 7 |
| Supply voltage (recommended operating) | VDD | 1.8 |  | 5.5 | V | 芯片工作 | 5 |
| Operating temperature range | TA | -40 |  | 125 | °C | 芯片工作 | 5 |
| Supply voltage (absolute maximum) | VDD |  |  | 6 | V |  | 5 |
| Reverse supply voltage (absolute maximum) | VDD_REV | -0.3 |  |  | V |  | 5 |
| Output drive current (absolute maximum) | IOUTPUT |  |  | 5 | mA |  | 5 |
| Storage temperature range (absolute maximum) | TSTG | -50 |  | 150 | °C |  | 5 |
| Junction temperature (absolute maximum) | TJ |  |  | 150 | °C |  | 5 |
| ESD HBM capability (absolute maximum) | ESD HBM |  |  | 8000 | V | HBM 人体模型 | 5 |

## CAD (KiCad official)

- Symbol: `KTH1702AE-ST3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `kth1702ae-st3-etched.step` / `kth1702ae-st3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kth1702ae-st3.step` / `kth1702ae-st3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CONNTEK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603380604281380864) (10 pp, sha256 `08ad5d29e7250f78`, 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/kth1702ae-st3-datasheet.pdf)