# BSA201N

**BORN** · Gas Discharge Tube Arresters (GDT) · 1206

BSA201N from BORN, in a 1206. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A1 | passive | Gas discharge tube electrode 1. Symmetrical, non-polarized terminal; connects across the line to be protected. Insulation resistance >1 GΩ (at 100V DC) to A2 until spark-over at ~200V DC (±30%). |
| 2 | A2 | passive | Gas discharge tube electrode 2. Symmetrical, non-polarized terminal; typically tied to protective earth or the opposite side of the protected line. Handles 0.5kA nominal 8/20µs impulse discharge current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | 1206 |
| Category | Circuit Protection |
| Pins | 2 |

## Ordering variants

Same part, different packaging or reel option.

- `BSA201N`

## CAD (KiCad official)

- Symbol: `BSA201N`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `bsa201n-etched.step` / `bsa201n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bsa201n.step` / `bsa201n.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/8588893441699168256) (4 pp, sha256 `c8a087f072198038`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bsa201n-datasheet.pdf)