# BSMF05C

**BORN** · ESD And Surge Protection (TVS/ESD) · SOT-363

BSMF05C from BORN, in a SOT-363. 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 | IO1 | passive | ESD-protected data/power line 1 (steering diode to pin 2 GND), VRWM 5.0 V, 80 W peak pulse power at 8/20μs. |
| 2 | GND | power_in | Common ground return for all five protected lines in the array. |
| 3 | IO2 | passive | ESD-protected data/power line 2 (steering diode to pin 2 GND), VRWM 5.0 V, ±15kV contact/air per IEC 61000-4-2. |
| 4 | IO3 | passive | ESD-protected data/power line 3 (steering diode to pin 2 GND), VRWM 5.0 V, clamping voltage 12 V max at IPP=7A. |
| 5 | IO4 | passive | ESD-protected data/power line 4 (steering diode to pin 2 GND), VRWM 5.0 V, junction capacitance 30 pF IO to IO and 70 pF IO to GND typical. |
| 6 | IO5 | passive | ESD-protected data/power line 5 (steering diode to pin 2 GND), VRWM 5.0 V, 7 A peak pulse current at 8/20μs. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-363 |
| Category | Circuit Protection |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `BSMF05C`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `bsmf05c-etched.step` / `bsmf05c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bsmf05c.step` / `bsmf05c.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/8602997142529462272) (4 pp, sha256 `27ea41be21f01929`, retrieved 2026-10-09, 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/bsmf05c-datasheet.pdf)