# HXYSLVU2.8-4

**HXY MOSFET** · ESD And Surge Protection (TVS/ESD) · SOP-8

HXYSLVU2.8-4 from HXY MOSFET, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | I/O1 | passive | Protected I/O line 1. Steering diodes clamp transients to GND rail; VRWM = 2.8V, VBR ≥ 3.0V @ 2µA, VC ≤ 8.5V @ IPP = 5A. Junction capacitance ~2pF (VR = 0V, 1MHz). |
| 2 | GND | power_in | Ground / reference rail return. Common cathode / anode node for the steering + TVS clamp diodes; connect via short, low-inductance trace directly to system ground for effective ESD clamping. |
| 3 | I/O2 | passive | Protected I/O line 2. Steering diodes to GND; VRWM = 2.8V, VC ≤ 8.5V @ 5A (8/20µs). Low 2pF loading suitable for high-speed data lines. |
| 4 | GND | power_in | Ground / reference rail return (shared with pin 2). Provides low-impedance return path for ESD strike currents to be clamped by the internal TVS diode. |
| 5 | GND | power_in | Ground / reference rail return (shared with pins 2/4/7). Bond to solid ground plane; the GND pins are internally tied through the central TVS clamp diode network. |
| 6 | I/O3 | passive | Protected I/O line 3. Steering diodes to GND; VRWM = 2.8V, VBR ≥ 3.0V, VC ≤ 8.5V @ 5A pulse. Insert in series with the protected signal at the connector side. |
| 7 | GND | power_in | Ground / reference rail return (shared with pin 5). Common node for the central bidirectional TVS clamp diode. |
| 8 | I/O4 | passive | Protected I/O line 4. Steering diodes to GND; VRWM = 2.8V, VC ≤ 8.5V @ 5A (8/20µs), CJ ≈ 2pF. Place as close to the connector / edge of PCB as possible. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-8 |
| Category | Circuit Protection |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `HXYSLVU2.8-4-HXY`

## CAD (KiCad official)

- Symbol: `HXYSLVU2.8-4`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hxyslvu2-8-4-etched.step` / `hxyslvu2-8-4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hxyslvu2-8-4.step` / `hxyslvu2-8-4.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/8590905621061718017) (None pp, sha256 `8794febb4639c02f`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/hxyslvu2-8-4-datasheet.pdf)