# DTC143ZUA-TP

**MCC(Micro Commercial Components)** · Digital Transistors · SOT-323

DTC143ZUA-TP from MCC(Micro Commercial Components), 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 | input | Base input of the transistor, with built-in biasing resistor R1 (4.7 kΩ typ.); input voltage is rated from -5 V to 30 V, with VI(off) min 0.5 V and VI(on) max 1.3 V. |
| 2 | GND | power_in | Ground reference pin (marked GND(+) in the internal structure diagram), with the emitter connected to this pin through the built-in network. |
| 3 | OUT | output | Collector output of the transistor; the datasheet rates collector current at 100 mA, with VO(on) max 0.3 V at IO=5 mA and IO(off) max 0.5 µA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC |  |  | 50 | V |  | 1 |
| Input Voltage | VIN | -5 |  | 30 | V |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Input Voltage (off) | VI(off) | 0.5 |  |  | V | VCC=5V, IO=100μA | 2 |
| Input Voltage (on) | VI(on) |  |  | 1.3 | V | VO=0.3V, IO=5mA | 2 |
| Output Voltage | VO(on) |  | 0.1 | 0.3 | V | IO=5mA, II=0.25mA | 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 | 80 |  |  |  | VO=5V, IO=10mA | 2 |
| Input Resistance | R1 | 3.29 | 4.7 | 6.11 | KΩ |  | 2 |
| Resistance Ratio | R2/R1 | 8 | 10 | 12 |  |  | 2 |
| Collector Current | IC |  | 100 |  | mA |  | 1 |
| Power Dissipation | PD |  | 200 |  | mW |  | 1 |
| Transition Frequency | fT |  | 250 |  | MHz | VCE=10V, IE=-5mA, f=100MHz | 2 |

## CAD (KiCad official)

- Symbol: `DTC143ZUA-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `dtc143zua-tp-etched.step` / `dtc143zua-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dtc143zua-tp.step` / `dtc143zua-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/dtc143zua-tp-datasheet.pdf) (4 pp, sha256 `428d067713d9cfa4`, retrieved 2026-10-30, 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/dtc143zua-tp-datasheet.pdf)