# 2KK5016

**KEXIN** · MOSFETs · SOT-523

2KK5016 from KEXIN, 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 of the N-channel MOSFET, rated for VGS of ±10 V and with an ESD-protected gate. |
| 2 | Source | passive | Source terminal of the N-channel MOSFET, to which VGS is referenced. |
| 3 | Drain | passive | Drain terminal of the N-channel MOSFET, rated for VDS of 20 V and continuous ID of 238 mA at TA = 25°C (steady state, on FR4 with 1 in² pad). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KEXIN |
| Package | SOT-523 |
| Category | Transistors |
| 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 |  |  | 20 | V |  | 1 |
| Gate-Source Voltage | VGS | -10 |  | 10 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 238 | mA | Steady state, TA=25°C, Note 1 | 1 |
| Pulsed Drain Current | IDM |  |  | 714 | mA | tP ≤10μs | 1 |
| Power Dissipation | PD |  |  | 300 | W | Steady state, TA=25°C, Note 1 | 1 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage Temperature Range | Tstg | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  |  | 416 | °C/W | Steady state, Note 1 (FR4, 1 in sq. pad) | 1 |
| Drain-Source Breakdown Voltage | VDSS | 20 |  |  | V | ID=100μA, VGS=0V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=20V, VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | μA | VDS=0V, VGS=±10V | 2 |
| Gate Threshold Voltage | VGS(th) | 0.5 |  | 1.5 | V | VDS=3V, ID=100μA | 2 |
| Static Drain-Source On-Resistance | RDS(On) |  | 1.5 | 3 | Ω | VGS=4.5V, ID=10mA | 2 |
| Static Drain-Source On-Resistance | RDS(On) |  | 2 | 3.5 | Ω | VGS=2.5V, ID=10mA | 2 |
| Input Capacitance | Ciss |  | 11.5 | 20 | pF | VGS=0V, VDS=5V, f=1MHz | 2 |
| Output Capacitance | Coss |  | 10 | 15 | pF | VGS=0V, VDS=5V, f=1MHz | 2 |
| Reverse Transfer Capacitance | Crss |  | 3.5 | 6 | pF | VGS=0V, VDS=5V, f=1MHz | 2 |
| Diode Forward Voltage | VSD |  | 0.66 | 0.8 | V | ISD=10mA, VGS=0V | 2 |

## CAD (KiCad official)

- Symbol: `2KK5016`
- 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: `2kk5016-etched.step` / `2kk5016-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2kk5016.step` / `2kk5016.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KEXIN datasheet](docs/2kk5016-datasheet.pdf) (4 pp, sha256 `3f127981532dcb91`, retrieved 2026-10-30, 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/2kk5016-datasheet.pdf)