component

049403.5NRHF

Public Made by Adom

by adom

Littelfuse Disposable Fuses, 0603. 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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049403-5nrhf-etched.step 049403-5nrhf: factory component page (tier=lcsc) · Ray 3d ago
049403-5nrhf-hero.glb 049403-5nrhf: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
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049403.5NRHF

Littelfuse · Disposable Fuses · 0603

049403.5NRHF from Littelfuse, in a 0603. 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 0603
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 ampere rating 4 hours % of ampere rating 100%, opening time at 25ºC 1
Opening time at 200% of ampere rating 5 sec % of ampere rating 200%, opening time at 25ºC 1
Opening time at 300% of ampere rating 0.2 sec % of ampere rating 300%, opening time at 25ºC 1
Insulation resistance 10000 ohms After opening 3
Interrupting rating 35 A @32V AC/DC (applies to 3.50 A rating) 1
Maximum voltage rating 32 V 1
Resistance to soldering heat 260 °C Withstands 60 seconds above 200°C and up to 260°C maximum 3
Operating temperature -55 90 °C Consult temperature rerating curve; for operation above 90°C contact Littelfuse 3
Ampere rating (Amp Code 03.5) 3.5 A 1
Nominal cold resistance 0.015 Ohms 1
Nominal melting I2t I2t 0.4306 A2sec 1
Nominal voltage drop 74.25 mV 1
Nominal power dissipation 0.2599 W 1

CAD (KiCad official)

  • Symbol: 049403.5NRHF
  • Footprint: Fuse:Fuse_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: 049403-5nrhf-etched.step / 049403-5nrhf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 049403-5nrhf.step / 049403-5nrhf.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (3 pp, sha256 926622c041549481, retrieved 2026-10-17, 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