component

045803.5DR

Public Made by Adom

by adom

Littelfuse Disposable Fuses, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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045803-5dr-etched.step 045803-5dr: factory component page (tier=lcsc) · Ray 2d ago
045803-5dr-hero.glb 045803-5dr: hero GLB from the etched model (keeps the MPN mark) · Ray 2d ago
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045803.5DR

Littelfuse · Disposable Fuses · 1206

045803.5DR 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 Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

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 100% of rated current 4 hours 100% of ampere rating; opening time minimum 1
Opening time at 250% of rated current 5 seconds 250% of ampere rating; opening time maximum 1
Interrupting rating 50 A @ 75VDC 1
Max voltage rating 75 V Max voltage rating printed for the 1.0 to 3.5 A block 1
Insulation resistance (after opening) 10000 Ohms After opening; MIL-STD-202, Method 302, Test Condition A 3
Operating temperature -55 125 °C With proper derating 3
Peak reflow temperature (TP) 260 °C Pb-free reflow; do not exceed 260°C 2
Ramp-up rate (TS(max) to TL) 5 °C/second Pb-free reflow, maximum 2
Ramp-down rate 5 °C/second Pb-free reflow, maximum 2
Time 25°C to peak temperature 8 minutes Time from 25°C to peak temperature (TP), maximum 2
Nominal cold resistance 0.0375 Ohms Nominal; measured at less than 10% of rated current at 25°C (Note 2); 3.5 A row 1
Nominal melting I2t 4 A2sec 8 msec opening time (Note 1); 3.5 A row 1
Ampere rating 3.5 A Amp code 03.5 (this MPN, 045803.5DR) 1

CAD (KiCad official)

  • Symbol: 045803.5DR
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: 045803-5dr-etched.step / 045803-5dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 045803-5dr.step / 045803-5dr.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (3 pp, sha256 4e4a9ebaffcd9cc5, retrieved 2026-10-18, 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