# IRF1404

**OSEN** · MOSFETs · TO-220

IRF1404 from OSEN, in a TO-220. 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 | Gate | input | Gate control input; gate-source voltage is rated ±20 V continuous with a 2.0 V to 4.0 V threshold at ID=250µA. |
| 2 | Drain | passive | Drain terminal; drain-source voltage is rated 40 V and continuous drain current 180 A at Tc=25°C. |
| 3 | Source | passive | Source terminal; continuous drain-source diode forward current is 180 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | OSEN |
| Package | TO-220 |
| 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 | 40 |  |  | V | ID=250µA，VGS=0V，TJ=25°C | 2 |
| Gate Threshold Voltage | VGS(th) | 2 |  | 4 | V | VDS=VGS，ID=250μA | 2 |
| Gate-Body Leakage Current | IGSS |  |  | 100 | nA | VGS=±16V，VDS=0 | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=40V，VGS=0 | 2 |
| Forward Transconductance | gfs | 45 |  |  | S | VDS=40V，ID=60A | 2 |
| Total Gate Charge | Qg |  |  | 130 | nC |  | 3 |
| Gate-Source Charge | Qgs |  |  | 30 | nC | VD=32，VGS=5V，ID=60A（Note 2） | 3 |
| Gate-Drain Charge | Qgd |  |  | 50 | nC |  | 3 |
| Continuous Drain-Source Diode Forward Current | IS |  |  | 180 | A |  | 3 |
| Diode Forward On-Voltage | VSD |  |  | 1.3 | V | IS=60A，VGS=0 | 3 |
| Drain-Source Voltage | VDSS |  |  | 40 | V |  | 2 |
| Gate-Source Voltage-Continuous | VGS |  |  | 20 | V |  | 2 |
| Drain Current-Continuous | ID |  |  | 180 | A | Note 2 | 2 |
| Drain Current-Single Pulsed | IDM |  |  | 720 | A | Single Plused（Note 1） | 2 |
| Power Dissipation | PD |  |  | 220 | W | Note 2 | 2 |
| Max. Operating Junction Temperature | Tj |  |  | 150 | ℃ |  | 2 |
| Thermal Resistance, Junction to Case | Rth(j-c) |  |  | 0.57 | ℃/W |  | 3 |

## CAD (KiCad official)

- Symbol: `IRF1404`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `irf1404-etched.step` / `irf1404-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `irf1404.step` / `irf1404.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [OSEN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603370434142892032) (3 pp, sha256 `5a4d4cfbca4762f1`, 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/irf1404-datasheet.pdf)