# Littelfuse 1206L020/30YR

PolySwitch PTC resettable fuse, 0.20 A hold, 30 V, 1206.

| | |
|---|---|
| Manufacturer | Littelfuse |
| MPN | 1206L020/30YR |
| Category | fuse (PTC resettable fuse (polyfuse)) |
| Package | 1206 (3.2 x 1.6 mm) |
| DigiKey | [18-1206L020/30YRTR-ND](https://www.digikey.com/en/products/detail/littelfuse-inc/1206L020-30YR/14320018) |
| Mouser | [576-1206L020/30YR](https://www.mouser.com/ProductDetail/576-1206L020/30YR) |
| LCSC | [C3761078](https://www.lcsc.com/product-detail/C3761078.html) |

Distributor numbers and stock from the LEDster-TI BOM, checked 2026-11-02: DigiKey 18-1206L020/30YRTR-ND (stock 25338), Mouser 576-1206L020/30YR (stock 14064), LCSC C3761078 (stock 2884).

## Files

- `1206l020-30yr.kicad_mod` footprint (KiCad)
- `1206l020-30yr.kicad_sym` symbol (KiCad)
- `1206l020-30yr.step` 3D model (STEP, Z-up, seated on z = 0, centred on the footprint origin)
- `1206l020-30yr.lbr` Fusion / EAGLE library part (adom-lbr from the files above with this page's metadata; no embedded 3D, bind the STEP)

## Provenance

- `1206l020-30yr.kicad_mod`: KiCad `Fuse:Fuse_1206_3216Metric` footprint (https://gitlab.com/kicad/libraries/kicad-footprints/-/raw/master/Fuse.pretty/Fuse_1206_3216Metric.kicad_mod), unmodified except the 3D model path (now `1206l020-30yr.step`). sha256/16 of the original: 8f4307d8c771db71.
- `1206l020-30yr.step`: KiCad `Fuse.3dshapes/Fuse_1206_3216Metric.step` (packages3D), byte-identical copy (sha256/16 5e6dcbe286696143). The footprint's (model (offset 0 0 0) (rotate 0 0 0)), so the STEP is already in the footprint frame and no transform was applied. Checked with OpenCascade (step2glb features): Z-up, seated on the board plane, origin = footprint origin.
- Upstream terms: KiCad official library (gitlab.com/kicad/libraries/kicad-footprints, kicad-packages3D and kicad-symbols, master, fetched 2026-11-02). License: CC-BY-SA 4.0 with the KiCad libraries exception (using these files in a design, and distributing the design or its manufacturing output, does not require the design to be licensed under CC-BY-SA). The STEP is KiCad's generic body for this package, not a manufacturer model.
- `1206l020-30yr.kicad_sym`: KiCad `Device:Polyfuse` (https://gitlab.com/kicad/libraries/kicad-symbols/-/raw/master/Device.kicad_symdir/Polyfuse.kicad_sym), renamed to the MPN; Value / Footprint / Datasheet / Description set and MPN / Manufacturer / distributor properties added. Graphics and pins unchanged.

## Notes

- The Littelfuse 1206L datasheet (pad layout) could not be downloaded from this workspace; the land pattern is KiCad's generic IPC 1206 fuse pattern, not checked against the Littelfuse recommended pads.

## License

Adom-authored content CC-BY-4.0; third-party files keep their upstream terms (see `LICENSE`).