# F12T1.5

**TLC Electronic** · Disposable Fuses · 1206

F12T1.5 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature |  | -55 |  | 125 | ℃ | with proper correction factor applied | 6 |
| Time to open at 1.0In (rated current 1.5A) |  | 4 |  |  | hour | 1.5A rated; 1.0In; printed as '4 hour min.' | 2 |
| Time to open at 2.5In (rated current 1.5A) |  |  |  | 5 | sec | 1.5A rated; 2.5In; printed as '5 sec max.' | 2 |
| Time to open at 3.0In (rated current 1.5A) |  | 0.1 |  | 3 | sec | 1.5A rated; 3.0In | 2 |
| Time to open at 10.0In (rated current 1.5A) |  | 0.2 |  | 20 | ms | 1.5A rated; 10.0In | 2 |
| Normal ambient temperature tolerance |  | -3 | 23 | 3 | ℃ | Normal ambient temperature 23±3℃ (test ambient) | 6 |
| Wave solder time in reservoir |  |  |  | 10 | seconds | Wave solder, reservoir temperature 260℃; maximum | 5 |
| Infrared reflow time |  |  |  | 30 | seconds | Infrared reflow, temperature 260℃; maximum | 5 |
| Average ramp up rate Tsmax to Tp |  |  |  | 3 | ℃ / Second | Lead-free reflow profile; Max. | 5 |
| Average ramp-down rate (TP to Tsmax) |  |  |  | 6 | ℃ / Second | Lead-free reflow profile; Max. | 5 |
| Time from 25℃ to peak temperature |  |  |  | 8 | Minutes | Lead-free reflow profile; Max. | 5 |
| Rated current |  |  | 1.5 |  | A | Part F12T1.5 rated current | 2 |
| Rated voltage |  |  | 72 |  | V | DC; printed as '72V' in Specifications table | 2 |
| Rated breaking capacity |  |  | 50 |  | A | DC interrupting rating, measured at rated voltage, time constant less than 50 microseconds, battery source | 2 |
| Typical cold resistance |  |  | 230 |  | mOhms | Measured at <10% of rated current, ambient 25℃ | 2 |
| Typical voltage drop |  |  | 367 |  | mV |  | 2 |
| Typical pre-arcing I2t | I2t |  | 0.17 |  | A2Sec | Measured at 10In current | 2 |

## CAD (KiCad official)

- Symbol: `F12T1.5`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `f12t1-5-etched.step` / `f12t1-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `f12t1-5.step` / `f12t1-5.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/8590207891153461248) (6 pp, sha256 `4d45bcc6a57e3db9`, 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/f12t1-5-datasheet.pdf)