# SL3402

**Slkor SLKORMICRO Elec** · MOSFETs · SOT-23

SL3402 from Slkor SLKORMICRO Elec, 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 | G | input | Gate; controls the channel, with absolute maximum gate-source voltage of ±20 V and threshold VGS(TH) of 0.5 V min to 1.5 V max at ID=250μA. |
| 2 | S | passive | Source terminal of the N-channel MOSFET; body diode conducts source-to-drain up to 1.8 A continuous with VSD max 1.2 V. |
| 3 | D | passive | Drain terminal; drain-source breakdown voltage 30 V minimum, continuous drain current 4 A at TA=25°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| 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 Breakdown Voltage | V(BR)DSS | 30 |  |  | V | VGS=0V ID=250μA | 2 |
| Zero Gate Voltage Drain Current (TA=25℃) | IDSS |  |  | 1 | μA | VDS=30V, VGS=0V | 2 |
| Zero Gate Voltage Drain Current (TA=125℃) | IDSS |  |  | 100 | uA | VDS=30V, VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±20V, VDS=0V | 2 |
| Gate Threshold Voltage | VGS(TH) | 0.5 | 0.9 | 1.5 | V | VDS=VGS, ID=250μA | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 29 | 50 | mΩ | VGS=10V, ID=4A | 2 |
| Drain-Source On-State Resistance | RDS(ON) |  | 44 | 60 | mΩ | VGS=4.5V, ID=3A | 2 |
| Source drain current (Body Diode) | IS |  |  | 1.8 | A | TA=25℃ | 2 |
| Forward on voltage | VSD |  |  | 1.2 | V | Tj=25℃, ISD=5A, VGS=0V | 2 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Drain-Source Breakdown Voltage (absolute maximum rating) | V(BR)DSS |  |  | 30 | V |  | 1 |
| Maximum Junction Temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -50 |  | 150 | °C |  | 1 |
| Pulse Drain Current | IDM |  |  | 20.4 | A | TA=25°C, pulse width limited by maximum junction temperature | 1 |
| Continuous Drain Current | ID |  |  | 4 | A | VGS=4.5V, TA=25°C | 1 |
| Continuous Drain Current | ID |  |  | 3.2 | A | VGS=4.5V, TA=70°C | 1 |
| Maximum Power Dissipation | PD |  |  | 1.5 | W | TA=25°C | 1 |
| Maximum Power Dissipation | PD |  |  | 0.9 | W | TA=70°C | 1 |
| Thermal Resistance Junction-Ambient | RθJA | 80 |  | 100 | °C/W | Mounted on Large Heat Sink | 1 |

## CAD (KiCad official)

- Symbol: `SL3402`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `sl3402-etched.step` / `sl3402-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl3402.step` / `sl3402.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor SLKORMICRO Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884579491196928) (5 pp, sha256 `04fb020e45e003e2`, 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/sl3402-datasheet.pdf)