# 2SA733G-P-AE3-R

**UTC Unisonic Tech** · Bipolar (BJT) · SOT-23

2SA733G-P-AE3-R from UTC Unisonic Tech, 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 | B | passive | Base terminal of the PNP transistor; the absolute maximum emitter-base voltage VEBO is -5 V, and IEBO is specified at VEB=-3V. |
| 2 | E | passive | Emitter terminal of the PNP transistor; the absolute maximum emitter-base voltage VEBO is -5 V. |
| 3 | C | passive | Collector terminal of the PNP transistor; rated for a collector-emitter voltage VCEO of -50 V and a collector current up to -150 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| 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-Emitter Saturation Voltage | VCE(SAT) |  | -0.1 | -0.3 | V | IC=-100mA, IB=-10mA | 3 |
| DC Current Gain | hFE | 90 |  | 600 |  | VCE=-6V, IC=-1mA | 3 |
| DC Current Gain, Rank P classification range | hFE | 200 |  | 400 |  |  | 3 |
| Collector-Base Breakdown Voltage | BVCBO | -60 |  |  | V | IC=-100A, IE=0 | 3 |
| Collector-Emitter Breakdown Voltage | BVCEO | -50 |  |  | V | IC=-10mA, IB=0 | 3 |
| Collector Cut-Off Current | ICBO |  |  | -100 | nA | VCB=-40V, IE=0 | 3 |
| Emitter Cut-Off Current | IEBO |  |  | -100 | nA | VEB=-3V, IC=0 | 3 |
| Current Gain Bandwidth Product | fT | 100 | 190 |  | MHz | VCE=-10V, IC=-50mA | 3 |
| Output Capacitance | Cob |  | 2 | 3 | pF | VCB=-10V, IE=0, f=1MHz | 3 |
| Noise Figure | NF |  | 4 | 6 | dB | IC=-0.1mA, VCE=-6V, RG=10kΩ, f=100Hz | 3 |
| Collector-Base Voltage | VCBO |  |  | -60 | V |  | 3 |
| Collector-Emitter Voltage | VCEO |  |  | -50 | V |  | 3 |
| Emitter-Base Voltage | VEBO |  |  | -5 | V |  | 3 |
| Collector Power Dissipation (SOT-23) | PC |  |  | 300 | mW | TC=25°C, SOT-23 | 3 |
| Collector Current | IC |  |  | -150 | mA |  | 3 |
| Junction Temperature | TJ |  |  | 125 | °C |  | 3 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 3 |

## CAD (KiCad official)

- Symbol: `2SA733G-P-AE3-R`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `2sa733g-p-ae3-r-etched.step` / `2sa733g-p-ae3-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sa733g-p-ae3-r.step` / `2sa733g-p-ae3-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603137514807320576) (5 pp, sha256 `a8b4fe84430d0ddf`, 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/2sa733g-p-ae3-r-datasheet.pdf)