# SP2101CT3

**Siliup** · MOSFETs · SOT-323

SP2101CT3 from Siliup, 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 | G | input | Gate of the P-channel MOSFET; gate-source voltage limited to ±12 V absolute maximum, threshold -0.5 to -1.0 V at ID=-250µA. |
| 2 | S | passive | Source of the P-channel MOSFET; body diode forward voltage up to -1.2 V at IS=-1A. |
| 3 | D | passive | Drain of the P-channel MOSFET; drain-source voltage -20 V maximum and continuous drain current -1.2 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Siliup |
| Package | SOT-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Breakdown Voltage | BVDSS | -20 |  |  | V | VGS=0V , ID=-250µA | 2 |
| Drain-Source Leakage Current | IDSS |  |  | -1 | uA | VDS=-16V , VGS=0V | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±12V , VDS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | -0.5 | -0.7 | -1 | V | VDS=VGS , ID=-250µA | 2 |
| Static Drain-Source On-Resistance (VGS=-4.5V) | RDS(ON) |  | 110 | 140 | mΩ | VGS=-4.5V , ID=-500mA | 2 |
| Static Drain-Source On-Resistance (VGS=-2.5V) | RDS(ON) |  | 140 | 180 | mΩ | VGS=-2.5V , ID=-500mA | 2 |
| Diode Forward Voltage | VSD |  |  | -1.2 | V | VGS=0V , IS=-1A , TJ=25℃ | 2 |
| Drain-Source Voltage | VDSS |  |  | -20 | V |  | 2 |
| Gate-Source Voltage | VGSS | -12 |  | 12 | V |  | 2 |
| Continuous Drain Current | ID |  |  | -1.2 | A |  | 2 |
| Pulse Drain Current | IDM |  |  | -2.8 | A |  | 2 |
| Power Dissipation | PD |  |  | 290 | mW |  | 2 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 2 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 2 |
| Thermal Resistance Junction-to-Ambient | RθJA |  |  | 431 | °C/W |  | 2 |

## CAD (KiCad official)

- Symbol: `SP2101CT3`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `sp2101ct3-etched.step` / `sp2101ct3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp2101ct3.step` / `sp2101ct3.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Siliup datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604429324485341184) (5 pp, sha256 `ce15466989d6cfa2`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+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/sp2101ct3-datasheet.pdf)