# K1206L100AR

**KUU** · Resettable Fuses · 1206

K1206L100AR from KUU, 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 | One end terminal of the non-polarized resettable PPTC fuse; the device is rated IH 1.00 A hold, IT 2.00 A trip, Vmax 6 V, Imax 100 A. |
| 2 | 2 | passive | Other end terminal of the non-polarized resettable PPTC fuse; the device is rated IH 1.00 A hold, IT 2.00 A trip, Vmax 6 V, Imax 100 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| 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 |
|---|---|---|---|---|---|---|---|
| Min resistance (R min), resistance range | R min | 0.06 |  |  | Ω |  | 1 |
| Max resistance (R1 max), resistance range | R1 max |  |  | 0.28 | Ω |  | 1 |
| Max voltage (V max) | V max |  |  | 6 | V |  | 1 |
| Max current (I max) | I max |  |  | 100 | A |  | 1 |
| Max operating time |  |  |  | 0.1 | Sec. |  | 1 |
| Unlabelled row (A) |  |  | 8 |  | A |  | 1 |
| Hold current (IH) | IH |  | 1 |  | A |  | 1 |
| Trip current (IT) | IT |  | 2 |  | A |  | 1 |
| Power dissipation (Pd typ) | Pd typ |  | 0.6 |  | W |  | 1 |
| Hold current vs ambient temperature |  |  | 1.4 |  | A | ambient -20℃ | 2 |
| Hold current vs ambient temperature |  |  | 1.3 |  | A | ambient 0℃ | 2 |
| Hold current vs ambient temperature |  |  | 1 |  | A | ambient 25℃ | 2 |
| Hold current vs ambient temperature |  |  | 0.9 |  | A | ambient 40℃ | 2 |
| Hold current vs ambient temperature |  |  | 0.8 |  | A | ambient 50℃ | 2 |
| Hold current vs ambient temperature |  |  | 0.75 |  | A | ambient 60℃ | 2 |
| Hold current vs ambient temperature |  |  | 0.7 |  | A | ambient 70℃ | 2 |
| Hold current vs ambient temperature |  |  | 0.6 |  | A | ambient 85℃ | 2 |
| Hold current vs ambient temperature |  |  | 1.6 |  | A | ambient -40℃ | 2 |

## CAD (KiCad official)

- Symbol: `K1206L100AR`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `k1206l100ar-etched.step` / `k1206l100ar-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `k1206l100ar.step` / `k1206l100ar.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KUU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945673589313536) (2 pp, sha256 `fcf3f287c9c973ae`, 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/k1206l100ar-datasheet.pdf)