# 1206TD-2A

**prosemi** · Disposable Fuses · 1206

1206TD-2A 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); 1206TD-2A is rated 2.00 A with 0.13 ohm typical cold resistance and 0.309 V typical voltage drop at rated current. |
| 2 | 2 | passive | Fuse terminal 2 (non-polarized, interchangeable with terminal 1); series operating temperature is -55 to 125°C and the 1206 pad layout is 1.5 mm x 2.03 mm per pad with 1.52 mm gap. |

## 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 |
|---|---|---|---|---|---|---|---|
| Ampere Rating |  |  | 2 |  | A |  | 1 |
| Opening time at 100% of amp rating (0.75~30A) |  | 4 |  |  | hours | 100% of amp rating, printed as 'Min.' | 1 |
| Opening time at 200% of amp rating (0.75~3A) |  | 1 |  | 60 | s | 200% of amp rating, 0.75~3A | 1 |
| Opening time at 250% of amp rating (0.75~5A) |  |  |  | 5 | s | 250% of amp rating, 0.75~5A | 1 |
| Opening time at 300% of amp rating (0.75~5A) |  | 0.1 |  | 3 | s | 300% of amp rating, 0.75~5A | 1 |
| Opening time at 1000% of amp rating (0.75~30A) |  | 0.2 |  | 20 | ms | 1000% of amp rating, 0.75~30A | 1 |
| Typical Cold Resistance |  |  | 0.13 |  | Ohms | DC cold resistance measured at <10% of rated current in ambient temperature of 25°C | 1 |
| Typical Melting I t |  |  | 0.43 |  | A Sec | Measured at 10In current | 1 |
| Typical Voltage Drop |  |  | 0.309 |  | V | Measured at rated current after temperature has stabilized | 1 |
| Operating Temperature |  | -55 |  | 125 | °C |  | 2 |
| Peak temperature (Tp), IR reflow | Tp |  |  | 260 | °C | IR reflow profile, printed as 260+0/-5°C | 2 |
| Time at peak temperature, infrared reflow |  |  |  | 30 | s | Infrared reflow: 260°C | 2 |
| Time at peak temperature, wave soldering |  |  |  | 10 | s | Wave soldering: 260°C | 2 |

## CAD (KiCad official)

- Symbol: `1206TD-2A`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206td-2a-etched.step` / `1206td-2a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206td-2a.step` / `1206td-2a.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/8590182934092283904) (3 pp, sha256 `040c3168e91fc117`, 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/1206td-2a-datasheet.pdf)