# ESDUEG5V0T4

**Changjing** · ESD And Surge Protection (TVS/ESD) · SOT-23-6L

ESDUEG5V0T4 from Changjing, in a SOT-23-6L. 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 | ESD-protected I/O line 1, uni-directional steering diodes to VCC and GND, 0.8pF max capacitance, 5V reverse stand-off. |
| 2 | GND | power_in | Ground reference for the ESD protection array; I/O to GND clamping is 20V max at IPP=5A. |
| 3 | I/O3 | passive | ESD-protected I/O line 3, uni-directional steering diodes to VCC and GND, 0.8pF max capacitance, 5V reverse stand-off. |
| 4 | I/O4 | passive | ESD-protected I/O line 4, uni-directional steering diodes to VCC and GND, 0.8pF max capacitance, 5V reverse stand-off. |
| 5 | VCC | power_in | Supply-rail connection of the internal TVS diode; VCC to GND breakdown 5.8V min at 1mA and clamping 20V max at IPP=8A. |
| 6 | I/O2 | passive | ESD-protected I/O line 2, uni-directional steering diodes to VCC and GND, 0.8pF max capacitance, 5V reverse stand-off. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23-6L |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `ESDUEG5V0T4`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `esdueg5v0t4-etched.step` / `esdueg5v0t4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esdueg5v0t4.step` / `esdueg5v0t4.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590920836431884288) (7 pp, sha256 `078ed58bf9c7fd19`, retrieved 2026-10-09, 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/esdueg5v0t4-datasheet.pdf)