# SI3139KEA-TP

**MCC Micro Commercial Components** · MOSFETs · SOT-523

SI3139KEA-TP from MCC Micro Commercial Components, in a SOT-523. 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 | GATE | input | Gate terminal with integrated ESD protection (2KV HBM); VGS rated ±12 V, threshold -0.35 to -1.1 V at ID=-250µA. |
| 2 | SOURCE | passive | Source terminal of the P-channel MOSFET; continuous body diode current is -0.6 A and drain-source voltage is rated -20 V. |
| 3 | DRAIN | passive | Drain terminal; continuous drain current -0.6 A at TA=25°C and pulsed drain current -2.4 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| Package | SOT-523 |
| 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 | V(BR)DSS | -20 |  |  | V | VGS=0V, ID=-250µA | 2 |
| Gate-Threshold Voltage | VGS(th) | -0.35 |  | -1.1 | V | VDS=VGS, ID=-250µA | 2 |
| Gate-Body Leakage Current | IGSS | -10 |  | 10 | µA | VGS=±10V, VDS=0V | 2 |
| Drain-Source On-Resistance | RDS(on) |  |  | 0.85 | Ω | VGS=-4.5V, ID=-500mA | 2 |
| Drain-Source On-Resistance | RDS(on) |  |  | 1.2 | Ω | VGS=-2.5V, ID=-300mA | 2 |
| Drain-Source On-Resistance | RDS(on) |  | 1.35 | 2 | Ω | VGS=-1.8V, ID=-200mA | 2 |
| Forward Transconductance | gFS |  | 1 |  | S | VDS=-5V, ID=-600mA | 2 |
| Drain-Source Voltage | VDS |  |  | -20 | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -0.6 | A | TA=25°C | 1 |
| Continuous Drain Current | ID |  |  | -0.38 | A | TA=100°C | 1 |
| Pulsed Drain Current | IDM |  |  | -2.4 | A | Note 3, repetitive rating | 1 |
| Total Power Dissipation | PD |  |  | 0.4 | W |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance, Junction to Ambient | RθJA |  | 290 |  | °C/W | Junction to ambient, Note 2 | 1 |

## CAD (KiCad official)

- Symbol: `SI3139KEA-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `si3139kea-tp-etched.step` / `si3139kea-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `si3139kea-tp.step` / `si3139kea-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC Micro Commercial Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603011661033066496) (6 pp, sha256 `28d8e64782c22c62`, 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/si3139kea-tp-datasheet.pdf)