# MMBT7002BK

**ST Semtech** · MOSFETs · SOT-23

MMBT7002BK 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 with a built-in G-S protection diode, and the gate-source voltage is rated at ±20 V. |
| 2 | Source | passive | Source terminal of the N-channel enhancement-mode MOSFET, part of a device rated for 60 V drain-source voltage and 350 mA continuous drain current. |
| 3 | Drain | passive | Drain terminal of the MOSFET, rated for 60 V drain-source voltage, 350 mA continuous drain current, and 2 A pulsed drain current. |

## 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 |  |  | 350 | mA |  | 1 |
| Pulsed Drain Current | IDM |  |  | 2 | A | Pulse Width ≤ 100 μs, Duty Cycle ≤ 2% | 1 |
| Power Dissipation | PD |  |  | 370 | mW | Device mounted on FR-4 substrate PC board, with minimum recommended pad layout | 1 |
| Operating Junction Temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage Temperature Range | Tstg | -65 |  | 150 | ℃ |  | 1 |
| Thermal Resistance from Junction to Ambient | RθJA |  |  | 340 | ℃/W | Device mounted on FR-4 substrate PC board, with minimum recommended pad layout | 1 |
| Drain-Source Breakdown Voltage | V(BR)DSS | 60 |  |  | V | at ID = 10 µA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | µA | at VDS = 60 V | 2 |
| Gate-Source Leakage | IGSS |  |  | 10 | µA | at VGS = 20 V | 2 |
| Gate-Source Threshold Voltage | VGS(th) | 1.1 |  | 2.1 | V | at VDS = VGS, ID = 250 µA | 2 |
| Drain-Source On-State Resistance | RDS(on) |  |  | 1.6 | Ω | at VGS = 10 V, ID = 500 mA | 2 |
| Drain-Source On-State Resistance | RDS(on) |  |  | 2 | Ω | at VGS = 5 V, ID = 50 mA | 2 |
| Drain-Source Diode Forward Voltage | VSD |  |  | 1.1 | V | at IS = 115 mA | 2 |
| Body-Diode Continuous Current | IS |  |  | 350 | mA |  | 2 |

## CAD (KiCad official)

- Symbol: `MMBT7002BK`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbt7002bk-etched.step` / `mmbt7002bk-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbt7002bk.step` / `mmbt7002bk.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ST Semtech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065696943153152) (6 pp, sha256 `b1b362a6f9447bdf`, retrieved 2026-10-19, 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/mmbt7002bk-datasheet.pdf)