# MT1401ET-EN

**Magn Tek** · Hall Switches · SOT-23

MT1401ET-EN from Magn Tek, 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 | Vcc | power_in | Supply pin; the datasheet gives a 2.8 V to 24 V operating range, with absolute maximum VCC of 27 V and reverse battery voltage of -27 V. |
| 2 | OUT | output | Open-drain output that turns Low when B exceeds BOP and High when B falls below BRP; output current is limited to 50 mA maximum and VOUT is rated to 27 V maximum. |
| 3 | GND | power_in | Ground reference pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Magn Tek |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC |  |  | 27 | V |  | 4 |
| Reverse Battery Voltage | VRCC | -27 |  |  | V |  | 4 |
| Output Voltage | VOUT |  |  | 27 | V |  | 4 |
| Continuous Output Current | IOUT |  |  | 50 | mA |  | 4 |
| Operating Ambient Temperature | TA | -40 |  | 150 | ℃ |  | 4 |
| Storage Temperature | TS | -50 |  | 150 | ℃ |  | 4 |
| Junction Temperature | TJ |  |  | 165 | ℃ |  | 4 |
| Operating Point (magnetic flux density) | BOP | 5 | 24 | 40 | Gs | TA =25℃ | 5 |
| Releasing Point (magnetic flux density) | BRP | -40 | -24 | -5 | Gs | TA =25℃ | 5 |
| Hysteresis Window | BHYST | 10 | 48 | 80 | Gs | TA =25℃ | 5 |
| Supply Voltage (operating) | VCC | 2.8 |  | 24 | V | Operating | 5 |
| Supply Current | ICC | 1 | 2.3 | 3.5 | mA | B<BRP | 5 |
| Output Saturation Voltage | VDSON |  |  | 0.4 | V | IOUT=20mA, B>BOP | 5 |
| Output Leakage Current | IOFF |  |  | 10 | uA | VOUT=24V | 5 |
| Output Rise Time | TR |  |  | 1 | us | RL=1KOhm, CL=20pF | 5 |
| Output Fall Time | TF |  |  | 1 | us | RL=1KOhm, CL=20pF | 5 |
| Power on Time | TPO |  |  | 10 | us | dVcc/dt>5V/uS, B>BOP(MAX) | 5 |
| Human-body model ESD | VESD | -6000 |  | 6000 | V | HBM, AEC-Q100-002 | 5 |
| Charged-device model ESD | VESD | -1000 |  | 1000 | V | CDM, AEC-Q100-011 | 5 |
| Short Circuit Protection Current | IOCP |  | 50 |  | mA | B>BOP, VOUT=VCC | 5 |
| Thermal Resistance, SOT-23 (Thin Outline) | RTH |  | 301 |  | ℃/W |  | 5 |

## CAD (KiCad official)

- Symbol: `MT1401ET-EN`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mt1401et-en-etched.step` / `mt1401et-en-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mt1401et-en.step` / `mt1401et-en.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Magn Tek datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893707500466176) (13 pp, sha256 `36688178bd82cf02`, retrieved 2026-10-17, tier: lcsc)
- **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/mt1401et-en-datasheet.pdf)