# SI3404HE3-TP

**MCC Micro Commercial Components** · MOSFETs · SOT-23

SI3404HE3-TP from MCC Micro Commercial Components, 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 | GATE | input | MOSFET gate terminal; the datasheet rates gate-source voltage VGS at ±20 V. |
| 2 | SOURCE | passive | MOSFET source terminal, the reference for the gate-source voltage rating (±20 V) and the drain-source ratings. |
| 3 | DRAIN | passive | MOSFET drain terminal; the datasheet rates drain-source voltage VDS at 30 V and continuous drain current ID at 5.6 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| 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 Breakdown Voltage | V(BR)DSS | 30 |  |  | V | VGS=0V, ID=250µA | 2 |
| Gate-Source Leakage Current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±20V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | µA | VDS=30V, VGS=0V | 2 |
| Gate-Threshold Voltage | VGS(th) | 1 |  | 3 | V | VDS=VGS, ID=250µA | 2 |
| Drain-Source On-Resistance | RDS(on) |  |  | 28 | mΩ | VGS=10V, ID=5.8A | 2 |
| Drain-Source On-Resistance | RDS(on) |  |  | 42 | mΩ | VGS=4.5V, ID=4.8A | 2 |
| Diode Forward Voltage | VSD |  |  | 1 | V | VGS=0V, IS=1A | 2 |
| Forward Transconductance | gFS | 5 |  |  | S | VDS=5V, ID=5.8A | 2 |
| Drain-Source Voltage | VDS |  |  | 30 | V |  | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID |  |  | 5.6 | A |  | 1 |
| Pulsed Drain Current | IDM |  |  | 30 | A | Repetitive rating, pulse width limited by maximum junction temperature (Note 3) | 1 |
| Total Power Dissipation | PD |  |  | 1.2 | W |  | 1 |
| Thermal Resistance, Junction to Ambient |  |  |  | 104 | °C/W | Junction to ambient (Note 2: surface mounted on FR4 board, t<5 sec) | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `SI3404HE3-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `si3404he3-tp-etched.step` / `si3404he3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `si3404he3-tp.step` / `si3404he3-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC Micro Commercial Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603058507030028288) (4 pp, sha256 `90c716260e1b31f0`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/si3404he3-tp-datasheet.pdf)