# TPCM1224-04SO

**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-23-6

TPCM1224-04SO from TECH PUBLIC, in a SOT-23-6. 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 | CH1 | passive | ESD protection channel 1 I/O line, rated for ±20kV air and ±15kV contact discharge (IEC 61000-4-2) with 1.5pF max capacitance. |
| 2 | VN | power_in | Negative reference pin of the ESD array, connected to ground; working peak reverse voltage is 5.5V max relative to this pin. |
| 3 | CH2 | passive | ESD protection channel 2 I/O line, rated for ±20kV air and ±15kV contact discharge (IEC 61000-4-2) with 1.5pF max capacitance. |
| 4 | CH3 | passive | ESD protection channel 3 I/O line, rated for ±20kV air and ±15kV contact discharge (IEC 61000-4-2) with 1.5pF max capacitance. |
| 5 | VP | power_in | Positive reference pin of the ESD array, with working peak reverse voltage of 5.5V max and breakdown voltage 6.5V min to 10V max at 1mA. |
| 6 | CH4 | passive | ESD protection channel 4 I/O line, rated for ±20kV air and ±15kV contact discharge (IEC 61000-4-2) with 1.5pF max capacitance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23-6 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPCM1224-04SO`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tpcm1224-04so-etched.step` / `tpcm1224-04so-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpcm1224-04so.step` / `tpcm1224-04so.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590182124873035776) (4 pp, sha256 `bd5d1c0fca653793`, retrieved 2026-10-09, 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/tpcm1224-04so-datasheet.pdf)