# 1206FA-6A

**prosemi** · Disposable Fuses · 1206

1206FA-6A from prosemi, in a 1206. 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 | 1 | passive | Fuse terminal 1 (non-polarized, interchangeable with terminal 2); the 6 A part has 0.016 ohm typical cold resistance, 32Vdc @ 150A / 24Vdc @ 300A interrupting rating, and a 0.60±0.2 mm wide end termination. |
| 2 | 2 | passive | Fuse terminal 2 (non-polarized, interchangeable with terminal 1); the 6 A part has 0.016 ohm typical cold resistance, 32Vdc @ 150A / 24Vdc @ 300A interrupting rating, and a 0.60±0.2 mm wide end termination. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Opening time at 100% of amp rating (0.25~40A) |  | 4 |  |  | Hours | 100% of amp rating, 0.25~40A | 1 |
| Opening time at 350% of amp rating (6~40A) |  |  |  | 5 | Seconds | 350% of amp rating, 6~40A | 1 |
| Operating temperature |  | -55 |  | 125 | °C |  | 2 |
| Typical cold resistance |  |  | 0.016 |  | Ohms | DC cold resistance, measured at <10% of rated current in ambient 25°C | 1 |
| Typical melting I2t |  |  | 11.2 |  | A Sec | measured at 10In current | 1 |
| Typical voltage drop |  |  | 0.14 |  | V | measured at rated current after temperature has stabilized | 1 |

## CAD (KiCad official)

- Symbol: `1206FA-6A`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206fa-6a-etched.step` / `1206fa-6a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206fa-6a.step` / `1206fa-6a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [prosemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590222889405210624) (3 pp, sha256 `67dbc1c9d5264afc`, retrieved 2026-10-18, 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/1206fa-6a-datasheet.pdf)