# TPESD3V3X2UTR

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-23

TPESD3V3X2UTR from TECH PUBLIC, in a SOT-23. 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 line 1 (uni-directional TVS diode anode); 3.3V max reverse working voltage, 0.7pF max capacitance to pin 3. |
| 2 | I/O2 | passive | Protected line 2 (uni-directional TVS diode anode); 3.3V max reverse working voltage, 0.7pF max capacitance to pin 3. |
| 3 | GND | power_in | Common cathode connection of both TVS diodes per the diagram, referenced as the ground return for pins 1 and 2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `TPESD3V3X2UTR`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `tpesd3v3x2utr-etched.step` / `tpesd3v3x2utr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpesd3v3x2utr.step` / `tpesd3v3x2utr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/tpesd3v3x2utr-datasheet.pdf) (4 pp, sha256 `2f9b9b9e913d8c89`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/tpesd3v3x2utr-datasheet.pdf)