# MS8001B

**MIRACLE POWER** · MOSFETs · TO-263

MS8001B from MIRACLE POWER, in a TO-263. 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; gate-source voltage limited to ±20V with threshold VGS(th) of 2.0V to 4.0V at ID = 250μA. |
| 2 | D | passive | Drain, connected to the exposed tab (middle lead is shortened in the package drawing); rated 85V VDS and 120A continuous at TC = 25°C. |
| 3 | S | passive | Source; carries up to 120A continuous at TC = 25°C and 480A pulsed. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MIRACLE POWER |
| Package | TO-263 |
| 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 | BVDSS | 85 |  |  | V | VGS = 0V, ID = 250μA | 1 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS = 85V, VGS = 0V | 1 |
| Forward Gate Body Leakage Current | IGSS | -100 |  | 100 | nA | VDS = 0V, VGS = ±20V | 1 |
| Gate Threshold Voltage | VGS(th) | 2 |  | 4 | V | VDS = VGS, ID = 250μA | 2 |
| Static Drain-Source On-Resistance | RDS(on) |  | 4.3 | 5.3 | mΩ | VGS = 10V, ID = 20A | 2 |
| Drain-Source Diode Forward Continuous Current | IS |  |  | 120 | A | VG=VD=0V, Force Current | 2 |
| Maximum Pulsed Current | ISM |  |  | 480 | A |  | 2 |
| Drain-Source Diode Forward Voltage | VSD |  |  | 1.2 | V | VGS = 0V, IS = 50A | 2 |
| Drain-Source Voltage | VDS |  |  | 85 | V | Note a: TJ = +25 ℃ to +150 ℃ | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Drain Current-Continuous | ID |  |  | 120 | A | TC = 25°C | 1 |
| Drain Current-Continuous | ID |  |  | 87.4 | A | TC = 100°C | 1 |
| Drain Current-Pulsed | IDM |  |  | 480 | A | Note b: Repetitive rating; pulse width limited by maximum junction temperature | 1 |
| Maximum Power Dissipation | PD |  |  | 173.6 | W | TJ = 25°C | 1 |
| Single Pulsed Avalanche Energy | EAS |  |  | 400 | mJ | Note c: L = 0.5mH, VDD = 50V, IAS = 40A, RG = 25Ω, Starting TJ = 25 ℃ | 1 |
| Operating and Store Temperature Range | TJ, TSTG | -55 |  | 150 | °C | Operating and Store Temperature Range | 1 |
| Thermal Resistance, Junction to Case | RθJC |  | 0.72 |  | °C/W |  | 1 |
| Thermal Resistance, Junction to Ambient | RθJA |  | 62.5 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `MS8001B`
- Footprint: `Package_TO_SOT_SMD:TO-263-2`
- 3D model: TO-263 (KiCad packages3D, STEP)
- 3D model files: `ms8001b-etched.step` / `ms8001b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ms8001b.step` / `ms8001b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MIRACLE POWER datasheet](docs/ms8001b-datasheet.pdf) (6 pp, sha256 `0fe866e2fcb3b5d1`, 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/ms8001b-datasheet.pdf)