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0501012.WR

Public Made by Adom

by adom

Littelfuse Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 2h ago
viewers 0501012-wr: viewers · Ray 2h ago
0501012-wr-etched.glb Publish 0.1.0 · Ray 2h ago
0501012-wr-etched.step 0501012-wr: factory component page (tier=lcsc) · Ray 2h ago
0501012-wr-hero.glb 0501012-wr: hero GLB from the etched model (keeps the MPN mark) · Ray 2h ago
0501012-wr-hero.overlay.json Publish 0.1.0 · Ray 2h ago
0501012-wr.glb Publish 0.1.0 · Ray 2h ago
0501012-wr.kicad_mod Publish 0.1.0 · Ray 2h ago
0501012-wr.kicad_sym Publish 0.1.0 · Ray 2h ago
0501012-wr.lbr Publish 0.1.0 · Ray 2h ago
0501012-wr.step Publish 0.1.0 · Ray 2h ago
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README.md Publish 0.1.0 · Ray 2h ago

0501012.WR

Littelfuse · Disposable Fuses · 1206

0501012.WR from Littelfuse, in a 1206. 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 Fuse terminal 1 (unpolarized, Ag/Ni/Sn termination); 10A-20A rated, 32 V max, 150 A DC interrupting rating at 32 VDC.
2 2 passive Fuse terminal 2 (unpolarized, Ag/Ni/Sn termination); 10A-20A rated, 32 V max, 150 A DC interrupting rating at 32 VDC.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 1206
Category Circuit Protection
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Opening time at 25ºC, minimum 4 Hours 100% of ampere rating, 10A, 20A, at 25ºC 1
Opening time at 25ºC, maximum 5 Seconds 350% of ampere rating, 10A, 20A, at 25ºC 1
Max. Voltage Rating 32 V 1
Operating Temperature -55 150 ºC 1
Continuous operation current limit 80 % of rated current Continuous operation; devices should be operated continuously at no more than 80% rated current 1
Nominal Resistance 0.00311 Ohms Measured with < 10% rated current 1
Nominal Melting I2T I2T 20.341 A2Sec. Measured at 1 msec. opening time 1
Nominal Voltage Drop At Rated Current 0.04927 V At rated current, after temperature has stabilized, fuse mounted with 3-oz Cu trace 1
Nominal Power Dissipation At Rated Current 0.5912 W At rated current 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass 3

CAD (KiCad official)

  • Symbol: 0501012.WR
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: 0501012-wr-etched.step / 0501012-wr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 0501012-wr.step / 0501012-wr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (3 pp, sha256 15c363790431c053, retrieved 2026-10-17, 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