# Si7850DP-MS

**MSKSEMI** · MOSFETs · DFN5x6-8L

Si7850DP-MS from MSKSEMI, in a DFN5x6-8L. 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 | S | passive | Source terminal of the N-channel MOSFET, carrying up to 30 A continuous (ID at TC=25°C) and sitting at the low side of the 60 V VDS rating. |
| 2 | S | passive | Source terminal of the N-channel MOSFET, carrying up to 30 A continuous (ID at TC=25°C) and sitting at the low side of the 60 V VDS rating. |
| 3 | S | passive | Source terminal of the N-channel MOSFET, carrying up to 30 A continuous (ID at TC=25°C) and sitting at the low side of the 60 V VDS rating. |
| 4 | G | input | Gate terminal of the N-channel MOSFET, rated for ±20 V gate-source voltage with a threshold of 1.2 to 2.5 V and RDS(ON) specified at VGS=10 V and 4.5 V. |
| 5 | D | passive | Drain terminal of the N-channel MOSFET, rated for 60 V drain-source voltage and 30 A continuous current at TC=25°C. |
| 6 | D | passive | Drain terminal of the N-channel MOSFET, rated for 60 V drain-source voltage and 30 A continuous current at TC=25°C. |
| 7 | D | passive | Drain terminal of the N-channel MOSFET, rated for 60 V drain-source voltage and 30 A continuous current at TC=25°C. |
| 8 | D | passive | Drain terminal of the N-channel MOSFET, rated for 60 V drain-source voltage and 30 A continuous current at TC=25°C. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | DFN5x6-8L |
| Category | Transistors/Thyristors |
| Pins | 9 |

## 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 |  | 2 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 2 |
| Continuous Drain Current | ID@TC=25℃ |  |  | 30 | A | TC=25℃, VGS @ 10V | 2 |
| Continuous Drain Current | ID@TC=100℃ |  |  | 15 | A | TC=100℃, VGS @ 10V | 2 |
| Pulsed Drain Current | IDM |  |  | 46 | A |  | 2 |
| Single Pulse Avalanche Energy | EAS |  |  | 25.5 | mJ |  | 2 |
| Avalanche Current | IAS |  |  | 22.6 | A |  | 2 |
| Total Power Dissipation | PD@TC=25℃ |  |  | 34.7 | W | TC=25℃ | 2 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | ℃ |  | 2 |
| Thermal Resistance Junction-ambient | RθJA |  |  | 62 | ℃/W |  | 2 |
| Thermal Resistance Junction-Case | RθJC |  |  | 3.6 | ℃/W |  | 2 |
| Drain-Source Breakdown Voltage | BVDSS | 60 |  |  | V | VGS=0V, ID=250uA | 3 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 20 | 25 | mΩ | VGS=10V, ID=15A | 3 |
| Static Drain-Source On-Resistance | RDS(ON) |  | 24 | 20 | mΩ | VGS=4.5V, ID=10A | 3 |
| Gate Threshold Voltage | VGS(th) | 1.2 |  | 2.5 | V | VGS=VDS, ID=250uA | 3 |
| Drain-Source Leakage Current | IDSS |  |  | 1 | uA | VDS=48V, VGS=0V, TJ=25℃ | 3 |
| Drain-Source Leakage Current | IDSS |  |  | 5 | uA | VDS=48V, VGS=0V, TJ=55℃ | 3 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VGS=±20V, VDS=0V | 3 |
| Continuous Source Current | IS |  |  | 30 | A | VG=VD=0V, Force Current | 3 |
| Pulsed Source Current | ISM |  |  | 46 | A |  | 3 |
| Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS=0V, IS=1A, TJ=25℃ | 3 |

## CAD (KiCad official)

- Symbol: `Si7850DP-MS`
- Footprint: `Package_DFN_QFN:DFN-S-8-1EP_6x5mm_P1.27mm`
- 3D model: DFN5x6-8L (KiCad packages3D, STEP)
- 3D model files: `si7850dp-ms-etched.step` / `si7850dp-ms-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `si7850dp-ms.step` / `si7850dp-ms.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](docs/si7850dp-ms-datasheet.pdf) (7 pp, sha256 `857cabef938d5b59`, retrieved 2026-11-04, 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/si7850dp-ms-datasheet.pdf)