# SMD1206P075TFT

**PTTC(Polytronics Tech)** · Resettable Fuses · 1206

SMD1206P075TFT from PTTC(Polytronics Tech), 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 | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PTTC(Polytronics Tech) |
| 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 |
|---|---|---|---|---|---|---|---|
| Minimum resistance (initial, un-soldered state) | Rmin | 0.09 |  |  | Ω | Initial (un-soldered) state | 2 |
| Maximum resistance after trip or reflow | R1max |  |  | 0.29 | Ω | 23 ºC, measured one hour after tripping or 260 ºC reflow for 20 s | 2 |
| Trip current | Itrip | 1.5 |  |  | A | 23 ºC still air | 2 |
| Hold current | Ihold |  |  | 0.75 | A | 23 ºC still air | 2 |
| Maximum voltage (rated voltage) | Vmax |  |  | 8 | Vdc | At rated current (Imax) | 2 |
| Maximum fault current | Imax |  |  | 100 | A | At rated voltage (Vmax) | 2 |
| Maximum time to trip |  |  |  | 0.2 | s | At 8.00 A fault current | 2 |
| Operating temperature |  | -40 |  | 85 | ºC |  | 10 |
| Maximum device surface temperature in tripped state |  |  |  | 125 | ºC | Tripped state | 10 |
| Passive aging resistance change |  | -5 |  | 5 | % | +85ºC, 1000 hours; typical | 10 |
| Humidity aging resistance change |  | -5 |  | 5 | % | +85ºC, 85%R.H., 1000 hours; typical | 10 |
| Thermal shock resistance change |  |  | -30 |  | % | MIL-STD-202 Method 107G, +85ºC/-40ºC, 20 times; typical | 10 |
| Power dissipated in tripped state | Pd |  | 0.6 |  | W | Tripped state, 23 ºC still air | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | tin | Terminal Material Solder-Plated Copper (Solder Material: Matte Tin (Sn)) | 11 |

## CAD (KiCad official)

- Symbol: `SMD1206P075TFT`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `smd1206p075tft-etched.step` / `smd1206p075tft-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd1206p075tft.step` / `smd1206p075tft.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PTTC(Polytronics Tech) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756514770604167168) (13 pp, sha256 `17f8aa1e2c38227f`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/smd1206p075tft-datasheet.pdf)