# MMBT7002K

**CBI** · MOSFETs · SOT-23

MMBT7002K from CBI, 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 N-channel enhancement MOSFET; gate-source voltage is rated at ±20 V (VGSS) and the part is ESD protected up to 2 kV. |
| 2 | Source | passive | Source terminal of the N-channel enhancement MOSFET; the datasheet gives no separate pin-level limit, so the absolute maximum ratings (60 V VDSS, 300 mA continuous drain current, 350 mW total power dissipation, -55 to +150 °C operating and storage range) apply. |
| 3 | Drain | passive | Drain terminal of the N-channel enhancement MOSFET; drain-source voltage is rated at 60 V (VDSS) and continuous drain current at 300 mA (800 mA pulsed, pulse width ≤ 10 µs). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| 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 | VDSS |  |  | 60 | V | Ta = 25 °C | 1 |
| Gate-Source Voltage | VGSS | -20 |  | 20 | V | Ta = 25 °C | 1 |
| Drain Current (Continuous) | ID |  |  | 300 | mA | Ta = 25 °C | 1 |
| Drain Current (Pulse) | IDM |  |  | 800 | mA | Pulse Width ≤ 10 µs | 1 |
| Total Power Dissipation | Ptot |  |  | 350 | mW | Ta = 25 °C | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -55 |  | 150 | °C | Ta = 25 °C | 1 |
| Drain Source Breakdown Voltage | BVDSS | 60 |  |  | V | at ID = 10 µA | 1 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | µA | at VDS = 60 V | 1 |
| Gate Source Leakage Current | IGSS | -10 |  | 10 | µA | at VGS = ± 20 V | 1 |
| Gate Threshold Voltage | VGS(th) | 1 |  | 2.5 | V | at VDS = 10 V, ID = 250 µA | 1 |
| Static Drain Source On-Resistance | RDS(ON) |  |  | 3 | Ω | at VGS = 10 V, ID = 500 mA | 1 |
| Static Drain Source On-Resistance | RDS(ON) |  |  | 4 | Ω | at VGS = 4.5 V, ID = 200 mA | 1 |
| Forward Transconductance | gfs | 80 |  |  | mS | at VDS = 10 V, ID = 200 mA | 1 |
| Input Capacitance | Ciss |  |  | 50 | pF | at VDS = 25 V, f = 1 MHz | 1 |
| Output Capacitance | Coss |  |  | 25 | pF | at VDS = 25 V, f = 1 MHz | 1 |
| Reverse Transfer Capacitance | Crss |  |  | 5 | pF | at VDS = 25 V, f = 1 MHz | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs |  | SOT-23 Plastic Package Absolute Maximum Ratings (Ta = 25 O | 1 |

## CAD (KiCad official)

- Symbol: `MMBT7002K`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbt7002k-etched.step` / `mmbt7002k-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbt7002k.step` / `mmbt7002k.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945431284236288) (3 pp, sha256 `fba5368f324b0423`, retrieved 2026-10-17, 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/mmbt7002k-datasheet.pdf)