# HSTS321150B351

**HXY MOSFET** · ESD And Surge Protection (TVS/ESD) · SOD-323

HSTS321150B351 from HXY MOSFET, in a SOD-323. 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOD-323 |
| Category | Circuit Protection |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (tp = 8/20us) | PPP |  |  | 200 | W | tp = 8/20us | 1 |
| Maximum lead temperature for soldering | TL |  |  | 260 | °C | during 10s | 1 |
| Storage Temperature Range | Tstg | -55 |  | 155 | °C |  | 1 |
| Operating Temperature Range | Top | -40 |  | 125 | °C |  | 1 |
| Maximum junction temperature | Tj |  |  | 150 | °C |  | 1 |
| IEC61000-4-2 (ESD) air discharge |  | -30 |  | 30 | KV | air discharge | 1 |
| IEC61000-4-2 (ESD) contact discharge |  | -30 |  | 30 | KV | contact discharge | 1 |
| Reverse stand-off voltage | VRWM |  |  | 15 | V |  | 2 |
| Reverse leakage current | IR |  |  | 1 | uA | @ VRWM | 2 |
| Breakdown voltage | VBR | 17 |  |  | V | @ IT 1 mA (pulse test, Note 1) | 2 |

## CAD (KiCad official)

- Symbol: `HSTS321150B351`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `hsts321150b351-etched.step` / `hsts321150b351-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hsts321150b351.step` / `hsts321150b351.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HXY MOSFET datasheet](docs/hsts321150b351-datasheet.pdf) (4 pp, sha256 `c7e3a5659b57893a`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/hsts321150b351-datasheet.pdf)