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Ray Publish 0.1.0 42da3cf 13d ago

1812L110PR

Littelfuse · Resettable Fuses · 1812

1812L110PR from Littelfuse, in a 1812. 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 PTC (solder-plated copper); 1812L110 is rated Ihold 1.10 A, Itrip 2.20 A, Vmax 8 Vdc, Imax 100 A.
2 2 passive Other end terminal of the non-polarized PTC, interchangeable with the first; the pad layout is 1.78 mm wide with a 3.45 mm gap between pads and 3.15 mm pad height.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 1812
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: 1812L110PR
  • Footprint: Fuse:Fuse_1812_4532Metric
  • 3D model: 1812, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal 1806 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: 1812l110pr-etched.step / 1812l110pr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1812l110pr.step / 1812l110pr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (7 pp, sha256 6208de21968a51c9, 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