# DTA114EUA

**TECH PUBLIC** · Digital Transistors · SOT-323

DTA114EUA from TECH PUBLIC, in a SOT-323. 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 | IN (BASE) | input | Input (base) through the built-in 10kΩ series resistor R1, with R2 of 10kΩ to the emitter; input voltage rating +10 to -40 V. |
| 2 | GND (EMITTER) | power_in | Ground/emitter terminal, common to the input bias resistor R2 and the PNP transistor emitter. |
| 3 | OUT (COLLECTOR) | output | Output (collector) of the PNP digital transistor, rated -50 V supply and -50 mA output current (IC max -100 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `DTA114EUA`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `dta114eua-etched.step` / `dta114eua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dta114eua.step` / `dta114eua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECH PUBLIC datasheet](docs/dta114eua-datasheet.pdf) (5 pp, sha256 `3550a9d0abc4737e`, 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/dta114eua-datasheet.pdf)