# F12T7

**TLC Electronic** · Disposable Fuses · 1206

F12T7 from TLC Electronic, 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 | TLC Electronic |
| 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 1.0 x rated current (4 h min.) |  | 4 |  |  | hour | Rated current 7A, at 1.0In | 2 |
| Opening time at 3.5 x rated current (5 s max.) |  |  |  | 5 | sec | Rated current 7A, at 3.5In | 2 |
| Opening time at 10.0 x rated current (0.2 ms to 10 ms) |  | 0.2 |  | 10 | ms | Rated current 7A, at 10.0In | 2 |
| DC interrupting rating (breaking capacity) |  |  |  | 50 | A | 50A@32Vdc; measured at rated voltage, time constant less than 50 microseconds, battery source | 2 |
| Rated voltage |  |  |  | 32 | V | DC | 2 |
| Operating temperature range |  | -55 |  | 125 | °C | with proper correction factor applied | 6 |
| Rated current |  |  | 7 |  | A |  | 2 |
| Typical cold resistance |  |  | 12.3 |  | mOhms | measured at <10% of rated current, ambient 25°C | 2 |
| Typical voltage drop |  |  | 130 |  | mV |  | 2 |
| Typical pre-arcing I2t | I2t |  | 14 |  | A2Sec | measured at 10In current | 2 |

## CAD (KiCad official)

- Symbol: `F12T7`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `f12t7-etched.step` / `f12t7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `f12t7.step` / `f12t7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TLC Electronic datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590207891161714688) (6 pp, sha256 `9152235d3e630d5a`, retrieved 2026-10-18, 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/f12t7-datasheet.pdf)