# P6SMB18CAQ

**Yangzhou Yangjie Elec Tech** · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMB)

P6SMB18CAQ from Yangzhou Yangjie Elec Tech, in a DO-214AA(SMB). 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 | A1 | passive | Terminal 1 of the bi-directional (CA suffix) TVS; the datasheet says there is no polarity marking, and it gives VRWM 15.3 V, VBR 17.10 to 18.90 V at 1 mA, and Vc 25.2 V at IPP 23.8 A for the 18CAQ. |
| 2 | A2 | passive | Terminal 2 of the bi-directional (CA suffix) TVS; the datasheet says there is no polarity marking, so it is interchangeable with terminal 1 and has the same 600 W (10/1000 µs) peak pulse power rating. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | DO-214AA(SMB) |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `P6SMB18CAQ`
- Footprint: `Diode_SMD:D_SMB`
- 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files: `p6smb18caq-etched.step` / `p6smb18caq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `p6smb18caq.step` / `p6smb18caq.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065269904961536) (6 pp, sha256 `65d13c41bd014bac`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/p6smb18caq-datasheet.pdf)