# 1.5KE47CA

**Liown** · ESD And Surge Protection (TVS/ESD) · DO-201

1.5KE47CA from Liown, in a DO-201. 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 | First terminal of the bi-directional TVS (1.5KE47CA): reverse stand-off voltage 40.2V, breakdown 44.7V to 49.4V at 1mA, max clamping 64.8V at 23.5A; no polarity, interchangeable with pin 2. |
| 2 | A2 | passive | Second terminal of the bi-directional TVS (1.5KE47CA): reverse stand-off voltage 40.2V, breakdown 44.7V to 49.4V at 1mA, max clamping 64.8V at 23.5A; no polarity, interchangeable with pin 1. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Liown |
| Package | DO-201 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1.5KE47CA`
- Footprint: `Diode_THT:D_DO-201AD_P15.24mm_Horizontal`
- 3D model: DO-201 (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Liown datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603047400017838080) (6 pp, sha256 `b3bcee92a1eabbdd`, 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/1-5ke47ca-datasheet.pdf)