component

FTR1812-050

Public Made by Adom

by adom

FTR Resettable Fuses, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionftr1812-050factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
ftr1812-050 / README.md
History Download
Ray Publish 0.1.0 280d1f9 25d ago

FTR1812-050

FTR · Resettable Fuses · 1812

FTR1812-050 from FTR, 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 Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer FTR
Package 1812
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
Hold current Ihold 0.5 A 23℃ still air 1
Trip current Itrip 1 A 23℃ still air 1
Maximum voltage Vmax 15 V at rated current (Imax) 1
Maximum fault current Imax 100 A at rated voltage (Vmax) 1
Maximum time to trip 0.15 s at 8.00 A fault current 1
Minimum initial resistance Rmin 0.15 Ω initial (un-soldered) state 1
Maximum resistance after trip or reflow R1max 1 Ω 23℃, measured one hour after tripping or reflow soldering at 260℃ for 20 s 1
Hold current derating at -40℃ Ihold 0.77 A ambient operating temperature -40℃ 2
Hold current derating at -20℃ Ihold 0.68 A ambient operating temperature -20℃ 2
Hold current derating at 0℃ Ihold 0.59 A ambient operating temperature 0℃ 2
Hold current derating at 23℃ Ihold 0.5 A ambient operating temperature 23℃ 2
Hold current derating at 40℃ Ihold 0.44 A ambient operating temperature 40℃ 2
Hold current derating at 50℃ Ihold 0.4 A ambient operating temperature 50℃ 2
Hold current derating at 60℃ Ihold 0.37 A ambient operating temperature 60℃ 2
Hold current derating at 70℃ Ihold 0.33 A ambient operating temperature 70℃ 2
Hold current derating at 85℃ Ihold 0.29 A ambient operating temperature 85℃ 2
Operating temperature -40 85 ℃ operating and storage 5
Storage temperature 0 35 ℃ storage condition, ≤70%RH 4
Maximum device surface temperature in tripped state 125 ℃ tripped state 5
Reflow peak temperature TP 260 ℃ Pb-free reflow, time within 5℃ of peak 20-40 s 4
Passive aging resistance change -50 50 % +85℃, 1000 hours 5
Humidity aging resistance change -50 50 % +85℃, 85%RH, 1000 hours 5
Thermal shock resistance change -50 % MIL-STD-202 Method 107G, +85℃/-40℃, 20 times 5
Power dissipated in tripped state Pd 0.8 W tripped state at 23℃ still air 1

CAD (KiCad official)

  • Symbol: FTR1812-050
  • 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: ftr1812-050-etched.step / ftr1812-050-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ftr1812-050.step / ftr1812-050.glb are the bare package body.

Provenance

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

  • Datasheet: FTR datasheet (6 pp, sha256 901196765d349b7b, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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