# BSS84AK-HXY

**HXY MOSFET** · MOSFETs · SOT-23

BSS84AK-HXY from HXY MOSFET, 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 | G | input | Gate of the P-channel enhancement-mode MOSFET; gate-source voltage limit is ±20 V. |
| 2 | S | passive | Source of the P-channel MOSFET; drain-source voltage is rated -50 V and continuous drain current -0.13 A. |
| 3 | D | passive | Drain of the P-channel MOSFET; VDS is rated -50 V, continuous ID -0.13 A and pulsed IDM -0.5 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-23 |
| 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 | V(BR)DSS | -50 |  |  | V | VGS=0, ID=250µA | 2 |
| Gate-body leakage current | IGSS | -10 |  | 10 | µA | VDS=0, VGS=±10V | 2 |
| Zero gate voltage drain current | IDSS |  |  | -10 | µA | VDS=-50V, VGS=0V | 2 |
| Zero gate voltage drain current | IDSS |  |  | -100 | nA | VDS=-40V, VGS=0V | 2 |
| Gate threshold voltage | VGS(th) | -0.8 |  | -2 | V | VDS=VGS, ID=-250µA | 2 |
| Drain-source on-resistance | RDS(on) |  | 2 | 5 | Ω | VGS=-10V, ID=-0.13A | 2 |
| Drain-source on-resistance | RDS(on) |  | 2.5 | 6 | Ω | VGS=-4.5V, ID=-0.13A | 2 |
| Diode forward voltage | VSD |  |  | -1 | V | IS=-0.13A, VGS=0V | 2 |
| Drain-source voltage | VDS |  |  | -50 | V |  | 1 |
| Gate-source voltage | VGS | -20 |  | 20 | V |  | 1 |
| Drain current-continuous | ID |  |  | -0.13 | A |  | 1 |
| Pulsed drain current | IDM |  |  | -0.5 | A |  | 1 |
| Maximum power dissipation | PD |  |  | 0.35 |  |  | 1 |
| Operating junction and storage temperature range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Thermal resistance, junction-to-ambient | RθJA |  |  | 62.5 | ℃/W | Junction-to-ambient (Note 2) | 1 |

## CAD (KiCad official)

- Symbol: `BSS84AK-HXY`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bss84ak-hxy-etched.step` / `bss84ak-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bss84ak-hxy.step` / `bss84ak-hxy.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/8590905536169140224) (5 pp, sha256 `5b0a986741fb758b`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/bss84ak-hxy-datasheet.pdf)