# SL9945

**Slkor SLKORMICRO Elec** · MOSFETs · SOP-8

SL9945 from Slkor SLKORMICRO Elec, in a SOP-8. 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 | S1 | passive | Source of MOSFET 1 (N-channel, 60 V VDS, ±3.6 A continuous drain current at TA=25°C). |
| 2 | G1 | input | Gate of MOSFET 1, rated ±20 V gate-source maximum. |
| 3 | S2 | passive | Source of MOSFET 2 (N-channel, 60 V VDS, ±3.6 A continuous drain current at TA=25°C). |
| 4 | G2 | input | Gate of MOSFET 2, rated ±20 V gate-source maximum. |
| 5 | D2 | passive | Drain of MOSFET 2, rated 60 V drain-source maximum, pulsed drain current ±25 A. |
| 6 | D2 | passive | Drain of MOSFET 2, rated 60 V drain-source maximum, pulsed drain current ±25 A (tied to pin 5). |
| 7 | D1 | passive | Drain of MOSFET 1, rated 60 V drain-source maximum, pulsed drain current ±25 A. |
| 8 | D1 | passive | Drain of MOSFET 1, rated 60 V drain-source maximum, pulsed drain current ±25 A (tied to pin 7). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOP-8 |
| Category | Transistors/Thyristors |
| Pins | 8 |

## 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 | -3.6 |  | 3.6 | A | TA=25oC | 1 |
| Continuous Drain Current | ID | -3.1 |  | 3.1 | A | TA=70oC | 1 |
| Pulsed Drain Current | IDM | -25 |  | 25 | A | Pulse width limited by maximum junction temperature (note b) | 1 |
| Continuous Source Current (Diode Conduction) | IS |  |  | 2 | A |  | 1 |
| Power Dissipation | PD |  |  | 2.1 | W | TA=25oC | 1 |
| Power Dissipation | PD |  |  | 1.3 | W | TA=70oC | 1 |
| Operating Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 150 | oC |  | 1 |
| Maximum Junction-to-Ambient Thermal Resistance | RθJA |  |  | 62.5 | oC/W | t <= 10 sec | 1 |
| Maximum Junction-to-Ambient Thermal Resistance | RθJA |  |  | 110 | oC/W | t <= 5 sec | 1 |
| Gate-Body Leakage | IGSS | -100 |  | 100 | nA | VDS = 0 V, VGS = 20 V | 2 |

## CAD (KiCad official)

- Symbol: `SL9945`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `sl9945-etched.step` / `sl9945-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl9945.step` / `sl9945.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/8588945425861136384) (6 pp, sha256 `ff1bbb3e1177a0b4`, retrieved 2026-10-19, 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/sl9945-datasheet.pdf)