# 0805L300SLWR

**Littelfuse** · Resettable Fuses · 0805

0805L300SLWR from Littelfuse, 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 | Non-polarized PPTC terminal (solder-plated copper, matte tin) in series with the protected circuit; 0805L300SL is rated Ihold 3.00 A, Itrip 6.00 A, Vmax 6 Vdc, Imax 50 A. |
| 2 | 2 | passive | Second non-polarized PPTC terminal, interchangeable with the other, carrying the series fault current. Maximum resistance R1max is 0.030 ohm and minimum resistance is 0.003 ohm. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | 0805 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `0805L300SLWR`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `0805l300slwr-etched.step` / `0805l300slwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `0805l300slwr.step` / `0805l300slwr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589910228264251392) (8 pp, sha256 `ba01087abeed0a81`, retrieved 2026-10-09, 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/0805l300slwr-datasheet.pdf)