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0805L110ULYR

Littelfuse · Resettable Fuses · 0805

0805L110ULYR from Littelfuse, in a 0805. 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 terminal of the non-polarized resettable PTC fuse (0805L110UL: Ihold 1.10 A, Itrip 1.80 A, Vmax 6 Vdc, Imax 50 A), with a 1.00 x 1.50 mm solder pad.
2 2 passive Other terminal of the non-polarized resettable PTC fuse (0805L110UL: Ihold 1.10 A, Itrip 1.80 A, Vmax 6 Vdc, Imax 50 A), with a 1.00 x 1.50 mm solder pad and 1.20 mm pad gap.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package 0805
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
Maximum voltage device can withstand without damage at rated current Vmax 6 Vdc At rated current Imax 1
Maximum fault current device can withstand without damage at rated voltage Imax 50 A At rated voltage Vmax 1
Minimum resistance of device in initial (un-soldered) state R min 0.04 Ω Initial (un-soldered) state 1
Maximum resistance of device at 20℃ after tripping or reflow soldering R 1max 0.12 Ω 20℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec. 1
Trip current (minimum current at which device trips) I trip 1.8 A 20℃ still air 1
Hold current (maximum current device passes without tripping) I hold 1.1 A 20℃ still air 1
Power dissipated from device in tripped state Pd 0.6 W Tripped state, 20℃ still air 1
Maximum time-to-trip current 8 A Time-to-trip test; time 0.3 s 1
Maximum time-to-trip time 0.3 s At 8.0 A 1

CAD (KiCad official)

  • Symbol: 0805L110ULYR
  • Footprint: Fuse:Fuse_0805_2012Metric
  • 3D model: 0805 (KiCad packages3D, STEP)
  • 3D model files: 0805l110ulyr-etched.step / 0805l110ulyr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 0805l110ulyr.step / 0805l110ulyr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (3 pp, sha256 04fca8e8b0548f89, retrieved 2026-10-18, 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