# PXTA94

**SY(顺烨)** · IC · SOT-89

PXTA94 from SY(顺烨), in a SOT-89. 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 | BASE | input | Base terminal of the PNP transistor, with emitter-base voltage VEBO rated at -5 V and continuous collector current limited to -0.2 A. |
| 2 | COLLECTOR | passive | Collector terminal, rated for collector-base voltage VCBO of -400 V and collector-emitter voltage VCEO of -400 V, with continuous collector current IC of -0.2 A and peak ICM of -0.3 A. |
| 3 | EMITTER | passive | Emitter terminal of the PNP transistor, with emitter-base breakdown V(BR)EBO of -5 V minimum and emitter-base voltage VEBO rated at -5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SY(顺烨) |
| Package | SOT-89 |
| Category |  |
| 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 |
|---|---|---|---|---|---|---|---|
| Collector-Base Breakdown Voltage | V(BR)CBO | -400 |  |  | V | IC=-100µA, IE=0 | 1 |
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -400 |  |  | V | IC=-1mA, IB=0 | 1 |
| Emitter-Base Breakdown Voltage | V(BR)EBO | -5 |  |  | V | IE=-100µA, IC=0 | 1 |
| Collector Cutoff Current | ICBO |  |  | -0.1 | µA | VCB=-400V, IE=0 | 1 |
| Emitter Cutoff Current | IEBO |  |  | -0.1 | µA | VEB=-4V, IC=0 | 1 |
| Base-Emitter Saturation Voltage | VBE(sat) |  |  | -0.75 | V | IC=-10mA, IB=-1mA | 1 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | -0.2 | V | IC=-10mA, IB=-1mA | 1 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | -0.3 | V | IC=-50mA, IB=-5mA | 1 |
| DC Current Gain hFE(1) | hFE(1) | 70 |  |  |  | VCE=-10V, IC=-1mA | 1 |
| DC Current Gain hFE(2) | hFE(2) | 80 |  | 300 |  | VCE=-10V, IC=-10mA | 1 |
| DC Current Gain hFE(3) | hFE(3) | 80 |  |  |  | VCE=-10V, IC=-50mA | 1 |
| DC Current Gain hFE(4) | hFE(4) | 60 |  |  |  | VCE=-10V, IC=-100mA | 1 |
| Transition Frequency | fT | 50 |  |  | MHz | VCE=-20V, IC=-10mA, f=30MHz | 1 |
| Collector-Base Voltage | VCBO | -400 |  |  | V |  | 1 |
| Collector-Emitter Voltage | VCEO | -400 |  |  | V |  | 1 |
| Emitter-Base Voltage | VEBO | -5 |  |  | V |  | 1 |
| Continuous Collector Current | IC | -0.2 |  |  | A |  | 1 |
| Peak Collector Current | ICM | -0.3 |  |  | A |  | 1 |
| Power Dissipation | PD |  |  | 0.5 | W |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance Junction to Ambient |  |  |  | 250 | °C/W | Junction to Ambient | 1 |

## CAD (KiCad official)

- Symbol: `PXTA94`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `pxta94-etched.step` / `pxta94-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pxta94.step` / `pxta94.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SY(顺烨) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603131220331151360) (3 pp, sha256 `6295feb63aea3ff4`, retrieved 2026-10-17, 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/pxta94-datasheet.pdf)