# SET23A12L02-ES

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

SET23A12L02-ES from ElecSuper, 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 | IO | bidirectional | Connect to IO line; the part is rated for a 12V reverse working voltage (VRWM) and ±30kV IEC61000-4-2 contact and air ESD. |
| 2 | IO | bidirectional | Connect to IO line; the part is rated for a 12V reverse working voltage (VRWM) and ±30kV IEC61000-4-2 contact and air ESD. |
| 3 | GND | power_in | Connect to GND as the common ground reference for the protected IO lines. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Peak pulse power (tp=8/20us) | Ppk |  |  | 500 | W | tp=8/20us@25℃ | 2 |
| Peak pulse current (tp=8/20us) | IPP |  |  | 15 | A | tp=8/20us@25℃ | 2 |
| ESD (IEC61000-4-2 air discharge) | VESD |  |  | 30 | kV | @25℃ | 2 |
| ESD (IEC61000-4-2 contact discharge) | VESD |  |  | 30 | kV | @25℃ | 2 |
| Junction temperature | TJ |  |  | 150 | ℃ |  | 2 |
| Operating temperature | TOP | -40 |  | 125 | ℃ | Over operating free-air temperature range | 2 |
| Storage temperature | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Lead temperature | TL |  |  | 260 | ℃ |  | 2 |
| Reverse Stand-off Voltage | VRWM |  |  | 12 | V |  | 3 |
| Reverse Breakdown Voltage | VBR | 13.5 |  |  | V | IT=1mA | 3 |
| Reverse Leakage Current | IR |  |  | 1 | uA | VRWM=12V | 3 |
| Clamping Voltage | VC |  |  | 28 | V | IPP=15A; tp=8/20us | 3 |
| Junction Capacitance | CJ |  |  | 100 | pF | VR=0V; f=1MHz | 3 |

## CAD (KiCad official)

- Symbol: `SET23A12L02-ES`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `set23a12l02-es-etched.step` / `set23a12l02-es-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `set23a12l02-es.step` / `set23a12l02-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/8608750071043543040) (7 pp, sha256 `cf2813c3ecb51270`, retrieved 2026-10-17, 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/set23a12l02-es-datasheet.pdf)