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Contents

README

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1210L005WR

Littelfuse · Resettable Fuses · 1210

1210L005WR from Littelfuse, in a 1210. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 P1 passive Current-carrying terminal 1 (non-polarized); device holds 0.05 A and trips at 0.15 A (20 °C still air), rated V_max = 30 Vdc, I_max = 10 A, R_1max = 50.00 Ω (measured 1 h after trip or 260 °C/20 s reflow).
2 P2 passive Current-carrying terminal 2 (non-polarized); electrically equivalent to pin 1 - PTC element is symmetric with R_min = 3.600 Ω in initial un-soldered state.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 1210
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: 1210L005WR
  • Footprint: Resistor_SMD:R_1210_3225Metric
  • 3D model: 1210 (KiCad packages3D, STEP)
  • 3D model files: 1210l005wr-etched.step / 1210l005wr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1210l005wr.step / 1210l005wr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 2a5d88abc7f6f775, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (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