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Contents

README

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1812L014DR

Littelfuse · Resettable Fuses · 1812

1812L014DR 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 Non-polarized PTC terminal on one end of the 1812 body (4.37-4.73 mm long), with a 1.78 mm pad width and 3.15 mm pad height in the recommended layout; the part is rated 0.14 A hold, 0.34 A trip and 60 Vdc maximum.
2 2 passive Non-polarized PTC terminal on the opposite end of the 1812 body, interchangeable with the other terminal, spaced 3.45 mm from it in the recommended pad layout; the part is rated 0.14 A hold, 0.34 A trip and 60 Vdc maximum.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 1812
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: 1812L014DR
  • 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: 1812l014dr-etched.step / 1812l014dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1812l014dr.step / 1812l014dr.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