# ESDA6V8UW-6

**WILLSEMI Will Semicon** · ESD And Surge Protection (TVS/ESD) · SOT-363

ESDA6V8UW-6 from WILLSEMI Will Semicon, in a SOT-363. 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 | I/O | bidirectional | Line to be protected by the steering diodes, rated for ±8kV contact ESD per IEC61000-4-2 and 3A surge (8/20µs) per IEC61000-4-5, with CI/O-GND of 0.70pF typ. |
| 2 | I/O | bidirectional | Line to be protected by the steering diodes, rated for ±8kV contact ESD per IEC61000-4-2 and 3A surge (8/20µs) per IEC61000-4-5, with CI/O-I/O of 0.35pF typ. |
| 3 | GND | power_in | Ground reference for the protection diodes; junction capacitance CI/O-GND is specified to this pin. |
| 4 | Vcc | power_in | Supply pin connected to the internal TVS diode; reverse stand-off voltage (VRWM) is 5V max. |
| 5 | I/O | bidirectional | Line to be protected by the steering diodes, rated for ±8kV contact ESD per IEC61000-4-2 and 3A surge (8/20µs) per IEC61000-4-5, with CI/O-I/O of 0.35pF typ. |
| 6 | I/O | bidirectional | Line to be protected by the steering diodes, rated for ±8kV contact ESD per IEC61000-4-2 and 3A surge (8/20µs) per IEC61000-4-5, with CI/O-GND of 0.70pF typ. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | WILLSEMI Will Semicon |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `ESDA6V8UW-6`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `esda6v8uw-6-etched.step` / `esda6v8uw-6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esda6v8uw-6.step` / `esda6v8uw-6.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [WILLSEMI Will Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590215488082116608) (6 pp, sha256 `d8d7aea8d8a02523`, retrieved 2026-10-10, 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/esda6v8uw-6-datasheet.pdf)