# PESD5V0S1BB-ES

**ElecSuper** · ESD And Surge Protection (TVS/ESD) · SOD-523

PESD5V0S1BB-ES from ElecSuper, 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 | IO1 | bidirectional | Connects to the protected I/O line; the device is a bi-directional ESD protection diode rated for a 5V working voltage and IEC 61000-4-2 Level 4 (±25kV contact and air discharge). |
| 2 | IO2 | bidirectional | Connects to the other side of the protected bi-directional line; junction capacitance is 15pF typical, measured I/O to I/O at 0V and 1MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | SOD-523 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `PESD5V0S1BB-ES`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `pesd5v0s1bb-es-etched.step` / `pesd5v0s1bb-es-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pesd5v0s1bb-es.step` / `pesd5v0s1bb-es.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ElecSuper datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8608746492295733248) (8 pp, sha256 `ce344dfa0ce8aa5c`, retrieved 2026-10-12, 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/pesd5v0s1bb-es-datasheet.pdf)