# SL3423

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

SL3423 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 of the P-channel MOSFET; gate-source voltage rated ±10 V, threshold -0.4 to -1.0 V at ID = -250 µA. |
| 2 | S | passive | Source of the P-channel MOSFET; continuous body-diode forward current up to -4.1 A. |
| 3 | D | passive | Drain of the P-channel MOSFET; drain-source voltage rated -20 V, continuous drain current -4 A steady state at TA=25℃. |

## 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 Voltage | VDS | -20 |  |  | V |  | 1 |
| Gate-Source Voltage | VGS | -10 |  | 10 | V |  | 1 |
| Continuous Drain Current (10s) | ID | -4.2 |  |  | A | TA=25℃, VGS @ -4.5V | 1 |
| Continuous Drain Current (steady state) | ID | -4 |  |  | A | TA=25℃, VGS @ -4.5V | 1 |
| Continuous Drain Current (10s) | ID | -4 |  |  | A | TA=70℃, VGS @ -4.5V | 1 |
| Continuous Drain Current (steady state) | ID | -3.7 |  |  | A | TA=70℃, VGS @ -4.5V | 1 |
| Pulsed Drain Current | IDM | -18 |  |  | A |  | 1 |
| Total Power Dissipation (10s) | PD |  |  | 1.32 | W | TA=25℃ | 1 |
| Total Power Dissipation (steady state) | PD |  |  | 1 | W | TA=25℃ | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 125 | ℃/W |  | 1 |
| Thermal Resistance Junction-Ambient | RθJA |  |  | 95 | ℃/W | t ≤10s | 1 |
| Thermal Resistance Junction-Case | RθJC |  |  | 80 | ℃/W |  | 1 |
| Drain-Source Breakdown Voltage | V(BR)DSS | -20 |  |  | V | VGS=0V, ID=-250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -1 | μA | VDS = -20V, VGS = 0V | 2 |
| Gate to Body Leakage Current | IGSS | -10 |  | 10 | uA | VDS =0V, VGS = ±10V | 2 |
| Gate Threshold Voltage | VGS(th) | -0.4 | -0.7 | -1 | V | VDS= VGS, ID= -250μA | 2 |
| Static Drain-Source on-Resistance | RDS(on) |  | 30 | 40 | mΩ | VGS =-4.5V, ID =-4A | 2 |
| Static Drain-Source on-Resistance | RDS(on) |  | 40 | 56 | mΩ | VGS =-2.5V, ID =-3A | 2 |
| Maximum Continuous Drain to Source Diode Forward Current | IS |  |  | -4.1 | A |  | 2 |
| Maximum Pulsed Drain to Source Diode Forward Current | ISM |  |  | -16.4 | A |  | 2 |
| Drain to Source Diode Forward Voltage | VSD |  |  | -1.2 | V | VGS = 0V, IS = -4.1A | 2 |

## CAD (KiCad official)

- Symbol: `SL3423`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `sl3423-etched.step` / `sl3423-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl3423.step` / `sl3423.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/8603061091740237824) (5 pp, sha256 `1f8d3e59472935f2`, 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/sl3423-datasheet.pdf)