# BM8205

**BORN** · MOSFETs · SOT-23-6L

BM8205 from BORN, in a SOT-23-6L. 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 | S1 | passive | Source of MOSFET 1 (N-channel, VDS 20V, ID 4.0A at TA=25°C). |
| 2 | D1/D2 | passive | Common drain of MOSFET 1 and MOSFET 2, tied together internally (VDS 20V, ID 4.0A at TA=25°C). |
| 3 | S2 | passive | Source of MOSFET 2 (N-channel, VDS 20V, ID 4.0A at TA=25°C). |
| 4 | G2 | input | Gate of MOSFET 2, VGS limit ±12V, threshold 0.5V min to 1.2V max at 250µA. |
| 5 | D1/D2 | passive | Common drain of MOSFET 1 and MOSFET 2, tied together internally (VDS 20V, ID 4.0A at TA=25°C). |
| 6 | G1 | input | Gate of MOSFET 1, VGS limit ±12V, threshold 0.5V min to 1.2V max at 250µA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-23-6L |
| Category | Transistors/Thyristors |
| Pins | 6 |

## 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 on-state resistance (VGS=4.5V, ID=4.0A) | RDS(ON) |  | 22 | 26 | mΩ | VGS=4.5V, ID=4.0A | 2 |
| Drain-source on-state resistance (VGS=2.5V, ID=3.0A) | RDS(ON) |  | 28 | 35 | mΩ | VGS=2.5V, ID=3.0A | 2 |
| Gate-body leakage | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±12V | 2 |
| Zero gate voltage drain current | IDSS |  |  | 1 | µA | VDS=20V, VGS=0V | 2 |
| Drain-source breakdown voltage | BVDSS | 20 |  |  | V | VGS=0V, ID=250µA | 2 |
| Gate threshold voltage | VGS(th) | 0.5 | 0.75 | 1.2 | V | VDS=VGS, ID=250µA | 2 |
| Diode forward voltage | VSD |  | 0.76 | 1.16 | V | VGS=0V, Is=2A | 2 |
| Drain-source voltage | VDS |  |  | 20 | V |  | 1 |
| Gate-source voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous drain current | ID |  |  | 4 | A | TA=25°C (TJ = 150 °C) | 1 |
| Continuous drain current | ID |  |  | 3 | A | TA=70°C (TJ = 150 °C) | 1 |
| Pulsed drain current | IDM |  |  | 20 | A |  | 1 |
| Continuous source current (diode conduction) | IS |  |  | 1.2 | A |  | 1 |
| Power dissipation | PD |  |  | 1.4 | W | TA=25°C | 1 |
| Power dissipation | PD |  |  | 0.9 | W | TA=70°C | 1 |
| Operating junction and storage temperature range | TJ, Tstg | -55 |  | 150 | ℃ |  | 1 |
| Maximum junction-to-ambient thermal resistance | RθJA |  | 70 | 90 | ℃/W | ≤ 10 s, surface mounted on 1in x 1in FR4 board | 2 |
| Maximum junction-to-ambient thermal resistance | RθJA |  | 100 | 125 | ℃/W | Steady-State, surface mounted on 1in x 1in FR4 board | 2 |
| Maximum junction-to-foot thermal resistance | RθJC |  | 63 | 80 | ℃/W | Steady-State | 2 |

## CAD (KiCad official)

- Symbol: `BM8205`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `bm8205-etched.step` / `bm8205-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bm8205.step` / `bm8205.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590923955165208576) (3 pp, sha256 `af39d22eb848b605`, retrieved 2026-10-17, 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/bm8205-datasheet.pdf)