# MMFTP84K

**ST(Semtech)** · MOSFETs · SOT-23

MMFTP84K from ST(Semtech), 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 | Gate | input | Gate terminal of the P-channel MOSFET, with gate-source voltage VGS rated at ± 20 V. |
| 2 | Source | passive | Source terminal of the P-channel MOSFET, with drain-source voltage -VDS rated at 60 V. |
| 3 | Drain | passive | Drain terminal of the P-channel MOSFET, with continuous drain current -ID rated at 180 mA and pulsed drain current -IDM at 700 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | -VDS |  |  | 60 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | -ID |  |  | 180 | mA |  | 1 |
| Peak Drain Current, Pulsed | -IDM |  |  | 700 | mA | Pulse width ≤ 100 µs, duty cycle ≤ 2%, repetitive rating | 1 |
| Power Dissipation | PD |  |  | 225 | mW | Device on FR-4 PCB, minimum recommended pad layout | 1 |
| Operating Junction Temperature Range | Tj | -55 |  | 150 | ℃ |  | 1 |
| Storage Temperature Range | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Drain-Source Breakdown Voltage | -V(BR)DSS | 60 |  |  | V | -ID = 250 µA | 2 |
| Zero Gate Voltage Drain Current | -IDSS |  |  | 0.1 | µA | -VDS = 25 V | 2 |
| Zero Gate Voltage Drain Current | -IDSS |  |  | 1 | µA | -VDS = 60 V | 2 |
| Gate-Source Leakage | IGSS | -10 |  | 10 | µA | VGS = ± 20 V | 2 |
| Gate-Source Threshold Voltage | -VGS(th) | 0.9 |  | 2 | V | VDS = VGS, -ID = 250 µA | 2 |
| Drain-Source On-State Resistance | RDS(on) |  | 2.6 | 10 | Ω | -VGS = 5 V, -ID = 0.1 A | 2 |
| Forward Transconductance | gfs | 50 |  |  | mS | -VDS = 25 V, -ID = 0.1 A, f = 1KHz | 2 |
| Drain-Source Diode Forward Voltage | -VSD |  |  | 1.2 | V | -IS = 0.5 A | 2 |
| Thermal Resistance from Junction to Ambient (note 2) | RθJA |  | 556 |  | ℃/W | Device on FR-4 PCB, minimum recommended pad layout | 1 |
| Thermal Resistance from Junction to Ambient (note 3) | RθJA |  | 265 |  | ℃/W | Device on FR-4 PCB, 2oz copper, with 1-inch square copper plate | 1 |

## CAD (KiCad official)

- Symbol: `MMFTP84K`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmftp84k-etched.step` / `mmftp84k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmftp84k.step` / `mmftp84k.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ST(Semtech) datasheet](docs/mmftp84k-datasheet.pdf) (6 pp, sha256 `dad89a22e167efa5`, retrieved 2026-11-04, 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/mmftp84k-datasheet.pdf)