# KTM1301SC-ST3

**CONNTEK** · Linear Hall Sensors · SOT-23-3L

KTM1301SC-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 for the sensor, which operates from 1.8 V to 5.5 V; a 100 nF capacitor should be placed as close as possible to this pin for noise filtering. |
| 2 | OUTPUT | output | CMOS push-pull output that goes low when the magnetic field exceeds BOP and high when it falls below BRP, with an absolute maximum output drive current of 5 mA. |
| 3 | GND | power_in | Ground reference pin, to be decoupled to VDD with a 100 nF capacitor connected between supply and ground. |

## 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 |
|---|---|---|---|---|---|---|---|
| Output low voltage | VOL |  | 0.008 | 0.05 | V | IOUT=1mA | 5 |
| Supply voltage | VDD | 1.8 |  | 5.5 | V | 工作状态 | 5 |
| Magnetic operating point (south pole, positive) | BOPS | 15 | 18 | 24 | Gauss | TA=+25℃, VDD=3.0V | 7 |
| Magnetic release point (south pole, positive) | BRPS | 9 | 12 | 15 | Gauss | TA=+25℃, VDD=3.0V | 7 |
| Magnetic operating point (north pole, negative) | BOPN | -24 | -18 | -15 | Gauss | TA=+25℃, VDD=3.0V | 7 |
| Magnetic release point (north pole, negative) | BRPN | -15 | -12 | -9 | Gauss | TA=+25℃, VDD=3.0V | 7 |
| Supply voltage range | 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 | VDD_REV | -0.3 |  |  | V |  | 5 |
| Output drive current | IOUTPUT |  |  | 5 | mA |  | 5 |
| Maximum withstand magnetic field | B |  |  | 3000 | Gauss | <5 min | 5 |
| Storage temperature range | TSTG | -50 |  | 150 | °C |  | 5 |
| Maximum junction temperature | TJ |  |  | 150 | °C |  | 5 |
| Reflow soldering maximum temperature | T reflow |  |  | 260 | °C |  | 5 |
| ESD HBM (human body model) capability | ESD HBM | 8000 |  |  | V |  | 5 |

## CAD (KiCad official)

- Symbol: `KTM1301SC-ST3`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `ktm1301sc-st3-etched.step` / `ktm1301sc-st3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ktm1301sc-st3.step` / `ktm1301sc-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/8758161713327673344) (15 pp, sha256 `705409fba63c48e0`, 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/ktm1301sc-st3-datasheet.pdf)