# ESD9L3.3ST5G-ES

**ElecSuper** · ESD Protection Devices · DFN1006-2L

ESD9L3.3ST5G-ES from ElecSuper, in a DFN1006-2L. 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 | IO | bidirectional | Connect to IO; this is the uni-directional line protected by the device, with a working (reverse stand-off) voltage of 3.3 V. |
| 2 | GND | power_in | Connect to GND; the junction capacitance is specified I/O to GND at 180 pF typical (250 pF max) with VR = 0 V and f = 1 MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | DFN1006-2L |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `ESD9L3.3ST5G-ES`
- Footprint: `Diode_SMD:D_SOD-882`
- 3D model: DFN1006-2L (KiCad packages3D, STEP)
- 3D model files: `esd9l3-3st5g-es-etched.step` / `esd9l3-3st5g-es-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd9l3-3st5g-es.step` / `esd9l3-3st5g-es.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ElecSuper datasheet](docs/esd9l3-3st5g-es-datasheet.pdf) (7 pp, sha256 `a2be16b0a05b000e`, retrieved 2026-10-28, 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/esd9l3-3st5g-es-datasheet.pdf)