# K0805L100AR

**KUU** · Resettable Fuses · 0805

K0805L100AR from KUU, in a 0805. 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 terminal of the resettable PTC fuse (hold current 1.00 A, trip current 2.00 A, Vmax 6.0 V, Imax 100 A); the device is non-polarized. |
| 2 | 2 | passive | Other terminal of the resettable PTC fuse (hold current 1.00 A, trip current 2.00 A, Vmax 6.0 V, Imax 100 A); the device is non-polarized. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KUU |
| Package | 0805 |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum voltage (V max) for K0805L100AR column | V max |  |  | 6 | V |  | 1 |
| Maximum current (I max) for K0805L100AR column | I max |  |  | 100 | A |  | 1 |
| Maximum operating time (Sec.) |  |  |  | 0.3 | Sec. |  | 1 |
| Minimum resistance (R min) | R min | 0.06 |  |  | Ω |  | 1 |
| Maximum resistance (R1 max) | R1 max |  |  | 0.25 | Ω |  | 1 |
| Hold current (IH) | IH |  | 1 |  | A |  | 1 |
| Trip current (IT) | IT |  | 2 |  | A |  | 1 |
| Power dissipation typ (Pd typ) | Pd typ |  | 0.6 |  | W |  | 1 |
| Unlabeled rating row (A) |  |  | 8 |  | A |  | 1 |
| Hold current at ambient -40℃ | IH |  | 1.45 |  | A | Ambient temperature -40℃ | 2 |
| Hold current at ambient -20℃ | IH |  | 1.35 |  | A | Ambient temperature -20℃ | 2 |
| Hold current at ambient 0℃ | IH |  | 1.2 |  | A | Ambient temperature 0℃ | 2 |
| Hold current at ambient 25℃ | IH |  | 1 |  | A | Ambient temperature 25℃ | 2 |
| Hold current at ambient 40℃ | IH |  | 0.92 |  | A | Ambient temperature 40℃ | 2 |
| Hold current at ambient 50℃ | IH |  | 0.84 |  | A | Ambient temperature 50℃ | 2 |
| Hold current at ambient 60℃ | IH |  | 0.75 |  | A | Ambient temperature 60℃ | 2 |
| Hold current at ambient 70℃ | IH |  | 0.65 |  | A | Ambient temperature 70℃ | 2 |
| Hold current at ambient 85℃ | IH |  | 0.52 |  | A | Ambient temperature 85℃ | 2 |

## CAD (KiCad official)

- Symbol: `K0805L100AR`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `k0805l100ar-etched.step` / `k0805l100ar-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `k0805l100ar.step` / `k0805l100ar.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/8588944439045181440) (2 pp, sha256 `289fe225e022ae35`, 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/k0805l100ar-datasheet.pdf)