# BRCS3404MA

**Foshan Blue Rocket Elec** · MOSFETs · SOT-23

BRCS3404MA from Foshan Blue Rocket Elec, 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 | G | input | Gate of the N-channel MOSFET; the datasheet gives a gate-source voltage limit of VGS = ±20 V. |
| 2 | S | passive | Source of the N-channel MOSFET; it is the reference terminal for the VGS, IDSS and RDS(on) test conditions in the datasheet. |
| 3 | D | passive | Drain of the N-channel MOSFET; the datasheet rates it for VDS = 30 V with continuous drain current ID = 5.5 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| 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 Voltage | VDS |  |  | 30 | V | Ta=25℃ | 2 |
| Drain Current, Continuous | ID |  |  | 5.5 | A | Ta=25℃ | 2 |
| Pulsed Drain Current | IDM |  |  | 19 | A | Ta=25℃ | 2 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V | Ta=25℃ | 2 |
| Total Power Dissipation | PD |  |  | 1.4 | W | Ta=25℃ | 2 |
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 |  | 150 | ℃ | Ta=25℃ | 2 |
| Maximum Junction-to-Ambient | RθJA |  |  | 90 | ℃/W | t≤10s | 2 |
| Maximum Junction-to-Ambient Steady-State | RθJA |  |  | 125 | ℃/W | Steady-State | 2 |
| Maximum Junction-to-Lead | RθJL |  |  | 80 | ℃/W |  | 2 |
| Drain-Source Breakdown Voltage | BVDSS | 30 |  |  | V | VGS=0V ID=250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | 1 | μA | VDS=24V VGS=0V | 2 |
| Zero Gate Voltage Drain Current (TJ=55℃) | IDSS |  |  | 5 | μA | VDS=24V VGS=0V TJ=55℃ | 2 |
| Gate-Body Leakage | IGSS | -0.1 |  | 0.1 | μA | VGS=±20V VDS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | 1 | 1.5 | 2.5 | V | VDS=VGS ID=250μA | 2 |
| Static Drain-Source On-Resistance | RDS(on)(1) |  | 20 | 31 | mΩ | VGS=10V ID=5.5A | 2 |
| Static Drain-Source On-Resistance | RDS(on)(2) |  | 26 | 43 | mΩ | VGS=4.5V ID=4A | 2 |
| Drain-Source Diode Forward Voltage | VSD |  | 0.77 | 1 | V | VGS=0V IS=1A | 2 |

## CAD (KiCad official)

- Symbol: `BRCS3404MA`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `brcs3404ma-etched.step` / `brcs3404ma-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `brcs3404ma.step` / `brcs3404ma.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Foshan Blue Rocket Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603104937555337216) (7 pp, sha256 `cb07a8effe8bd0d8`, 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/brcs3404ma-datasheet.pdf)