# PESD5V0X1UB-P

**TECH PUBLIC** · ESD Protection Devices · SOD-523

PESD5V0X1UB-P from TECH PUBLIC, in a SOD-523. 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 | Cathode | passive | Cathode of the uni-directional TVS diode (marked band side), connects to the protected line; reverse working voltage 5V max, breakdown 6.5V min to 9.0V max at IT=1mA. |
| 2 | Anode | passive | Anode of the TVS diode, normally connected to ground; junction capacitance 0.5pF typical (0.9pF max) between pin 1 and pin 2 at VR=0V, f=1MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PESD5V0X1UB-P`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `pesd5v0x1ub-p-etched.step` / `pesd5v0x1ub-p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd5v0x1ub-p.step` / `pesd5v0x1ub-p.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/pesd5v0x1ub-p-datasheet.pdf) (4 pp, sha256 `6be5bf58a2ac8d1d`, retrieved 2026-10-22, 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/pesd5v0x1ub-p-datasheet.pdf)