# DTA143ECA-TP

**MCC(Micro Commercial Components)** · Digital Transistors · SOT-23

DTA143ECA-TP from MCC(Micro Commercial Components), in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN | input | Base input through built-in R1 (4.7 kΩ typ); input voltage range is -30 V to 10 V, with VI(off) of -0.5 V min and VI(on) of -3.0 V max. |
| 2 | GND | power_in | Ground (+) terminal of the PNP digital transistor, the emitter side; supply voltage VCC is rated -50 V. |
| 3 | OUT | output | Collector output, rated for output current IO of -100 mA with VO(on) of -0.3 V max at IO=-10 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-23 |
| Category | Transistors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage (off) | VI(off) | -0.5 |  |  | V | VCC=-5V, IO=-100μA | 2 |
| Input Voltage (on) | VI(on) |  |  | -3 | V | VO=-0.3V, IO=-20mA | 2 |
| Output Voltage | VO(on) |  |  | -0.3 | V | IO=-10mA, II=-0.5mA | 2 |
| Input Current | II |  |  | -1.8 | mA | VI=-5V | 2 |
| Output Current | IO(off) |  |  | -0.5 | μA | VCC=-50V, VI=0 | 2 |
| DC Current Gain | GI | 30 |  |  |  | VO=-5V, IO=-10mA | 2 |
| Input Resistance | R1 | 3.29 | 4.7 | 6.11 | KΩ |  | 2 |
| Resistance Ratio | R2/R1 | 0.8 | 1 | 1.2 |  |  | 2 |
| Transition Frequency | fT |  | 250 |  | MHz | VCE=-10V, IE=5mA, f=100MHz | 2 |
| Supply Voltage | VCC |  |  | -50 | V |  | 1 |
| Input Voltage | VIN | -30 |  | 10 | V |  | 1 |
| Output Current | IO |  |  | -100 | mA |  | 1 |
| Collector Current | IC(Max) |  |  | -100 | mA |  | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `DTA143ECA-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.92 mm, terminals on the pads, 1.0 mm tall, datasheet A, midpoint of min and max). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `dta143eca-tp-etched.step` / `dta143eca-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dta143eca-tp.step` / `dta143eca-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/dta143eca-tp-datasheet.pdf) (4 pp, sha256 `1ff64c793a794cec`, retrieved 2026-11-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/dta143eca-tp-datasheet.pdf)