# HXY3404MI

**HXY MOSFET** · MOSFETs · SOT-23-3L

HXY3404MI from HXY MOSFET, 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 | G | input | Gate of the N-channel enhancement-mode MOSFET; gate-source voltage is rated ±20 V. |
| 2 | D | passive | Drain of the N-channel MOSFET; rated 30 V drain-source, 5 A continuous drain current and 20 A pulsed drain current. |
| 3 | S | passive | Source of the N-channel MOSFET; drain-source diode forward current is rated 5 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23-3L |
| Category | Transistors/Thyristors |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-source breakdown voltage | BVDSS | 30 |  |  | V | VGS=0V, ID=250µA | 2 |
| Zero gate voltage drain current | IDSS |  |  | 1 | µA | VDS=30V, VGS=0V | 2 |
| Gate-body leakage | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±20V | 2 |
| Gate threshold voltage | VGS(th) | 0.8 | 1.4 | 2.2 | V | VDS=VGS, ID=250µA | 2 |
| Drain-source on-state resistance | RDS(ON) |  | 24 | 28 | mΩ | VGS=10V, ID=5A | 2 |
| Drain-source on-state resistance | RDS(ON) |  | 26 | 32 | mΩ | VGS=4.5V, ID=4A | 2 |
| Diode forward voltage | VSD |  | 0.76 | 1.16 | V | VGS=0V, Is=1A | 2 |
| Drain-source voltage | VDS |  |  | 30 | V | TA=25℃ | 1 |
| Gate-source voltage | VGS | -20 |  | 20 | V | TA=25℃ | 1 |
| Drain current-continuous | ID |  |  | 5 | A | Tj=125℃ | 1 |
| Drain current-pulsed | IDM |  |  | 20 | A |  | 1 |
| Drain-source diode forward current | Is |  |  | 5 | A | TA=25℃ | 1 |
| Maximum power dissipation | PD |  |  | 1.4 | W | TA=25℃ | 1 |
| Operating junction temperature range | Tj | -55 |  | 150 | ℃ |  | 1 |
| Thermal resistance junction-to-ambient | RthJA |  |  | 100 | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `HXY3404MI`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `hxy3404mi-etched.step` / `hxy3404mi-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hxy3404mi.step` / `hxy3404mi.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758128226872758272) (7 pp, sha256 `0f075b176cc14993`, retrieved 2026-10-18, 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/hxy3404mi-datasheet.pdf)