# ESDA6V8UW

**UMW** · ESD And Surge Protection (TVS/ESD) · SOT-363

ESDA6V8UW from UMW, 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/O1 | passive | Protected I/O line connected to the midpoint of a steering diode pair (to pin 5 and GND pin 2), with 0.70pF typ. capacitance to GND. |
| 2 | GND | power_in | Ground, common anode of the lower steering diodes and the TVS diode. |
| 3 | I/O2 | passive | Protected I/O line connected to the midpoint of a steering diode pair, with 0.70pF typ. capacitance to GND and 0.35pF typ. between I/Os. |
| 4 | I/O3 | passive | Protected I/O line connected to the midpoint of a steering diode pair, with 0.70pF typ. capacitance to GND and 0.35pF typ. between I/Os. |
| 5 | VCC | power_in | Positive rail connecting the upper steering diodes and the TVS diode cathode; reverse stand-off voltage 5V max. |
| 6 | I/O4 | passive | Protected I/O line connected to the midpoint of a steering diode pair, with 0.70pF typ. capacitance to GND and 0.35pF typ. between I/Os. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VRWM |  |  | 5 | V |  | 3 |
| Reverse breakdown voltage | VBR | 6.5 | 8 | 9 | V | IBR=1mA | 3 |
| Forward voltage | VF |  | 0.9 | 1.2 | V | IF=10mA | 3 |
| Junction capacitance, any I/O to GND | CI/O - GND |  | 0.7 | 0.9 | pF | VR=0V, f=1MHz, Any I/O to GND | 3 |
| Junction capacitance, any I/O to I/O | CI/O - I/O |  | 0.35 | 0.5 | pF | VR=0V, f=1MHz, Any I/O to I/O | 3 |
| Clamping voltage (IEC61000-4-5) | VCL |  |  | 11 | V | Ipp=1A, tp=8/20µs | 3 |
| Clamping voltage (IEC61000-4-5) | VCL |  |  | 15 | V | Ipp=3A, tp=8/20µs | 3 |
| Peak pulse power | PPK |  |  | 45 | W | tp=8/20µs | 2 |
| Peak pulse current | IPP |  |  | 3 | A | tp=8/20µs | 2 |
| ESD air discharge per IEC61000-4-2 | VESD | -15 |  | 15 | kV | Air discharge, IEC61000-4-2 | 2 |
| ESD contact discharge per IEC61000-4-2 | VESD | -8 |  | 8 | kV | Contact discharge, IEC61000-4-2 | 2 |
| Junction temperature | TJ |  |  | 125 | °C |  | 2 |
| Lead temperature | TL |  |  | 260 | °C |  | 2 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

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

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755876522543079424) (8 pp, sha256 `92a21b4b5cbfa683`, 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/esda6v8uw-datasheet.pdf)