# PDTC114YT-QR

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

PDTC114YT-QR from Nexperia, 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 | I | input | Input (base) of the built-in NPN transistor, connected to bias resistor R1 (10 kΩ typical); the datasheet limits the input voltage to 40 V positive and -6 V negative. |
| 2 | GND | power_in | Ground (emitter) connection of the built-in transistor. |
| 3 | O | output | Output (collector) of the built-in transistor, rated for 100 mA output current and 50 V collector-emitter voltage with open base. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `PDTC114YT-QR`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `pdtc114yt-qr-etched.step` / `pdtc114yt-qr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pdtc114yt-qr.step` / `pdtc114yt-qr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Nexperia datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603362651661746176) (11 pp, sha256 `b9f3d94b9b3232a0`, retrieved 2026-10-09, 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/pdtc114yt-qr-datasheet.pdf)