component

MF-MSMF050

Public Made by Adom

by adom

BOURNS 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.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 25d ago
viewers mf-msmf050: viewers · Ray 25d ago
mf-msmf050-etched.glb mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
mf-msmf050-etched.step mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
mf-msmf050-hero.glb mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
mf-msmf050-hero.overlay.json mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
mf-msmf050.glb plain STEP: one free product with face colours (generated model was nested; tscircuit read it white) · Ray 23d ago
mf-msmf050.kicad_mod Publish 0.1.0 · Ray 25d ago
mf-msmf050.kicad_sym mf-msmf050: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 11d ago
mf-msmf050.lbr mf-msmf050: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 11d ago
mf-msmf050.step plain STEP: one free product with face colours (generated model was nested; tscircuit read it white) · Ray 23d ago
package.json mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
page.json mf-msmf050: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP) · Ray 23d ago
README.md Publish 0.1.0 · Ray 25d ago

MF-MSMF050

BOURNS · Resettable Fuses · 1812

MF-MSMF050 from BOURNS, 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 BOURNS
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
Maximum voltage (Vmax, rated voltage) Vmax 15 V 1
Maximum interrupt current (Imax) Imax 100 A 1
Resistance minimum (Rmin) Rmin 0.15 Ω at 23 °C 1
Resistance maximum (R1max) R1max 1 Ω at 23 °C 1
Maximum time to trip 0.15 s at 8.0 A, 23 °C 1
Operating temperature -40 85 °C 1
Recommended storage temperature 40 °C 70 % R.H. max. 1
Passive aging resistance change -5 5 % +85 °C, 1000 hours; typical resistance change 1
Humidity aging resistance change -5 5 % +85 °C, 85 % R.H., 1000 hours; typical resistance change 1
Thermal shock resistance change -10 10 % -40 °C to +85 °C, 20 times; typical resistance change 1
Hold current Ihold 0.5 A at 23 °C 1
Trip current Itrip 1 A at 23 °C 1
Tripped power dissipation 0.8 W 1
Hold current derating at ambient -40 °C Ihold 0.77 A ambient -40 °C 4
Hold current derating at ambient -20 °C Ihold 0.68 A ambient -20 °C 4
Hold current derating at ambient 0 °C Ihold 0.59 A ambient 0 °C 4
Hold current derating at ambient 23 °C Ihold 0.5 A ambient 23 °C 4
Hold current derating at ambient 40 °C Ihold 0.44 A ambient 40 °C 4
Hold current derating at ambient 50 °C Ihold 0.4 A ambient 50 °C 4
Hold current derating at ambient 60 °C Ihold 0.37 A ambient 60 °C 4
Hold current derating at ambient 70 °C Ihold 0.33 A ambient 70 °C 4
Hold current derating at ambient 85 °C Ihold 0.29 A ambient 85 °C 4

CAD (KiCad official)

  • Symbol: MF-MSMF050
  • 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: mf-msmf050-etched.step / mf-msmf050-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mf-msmf050.step / mf-msmf050.glb are the bare package body.

Provenance

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

  • Datasheet: BOURNS datasheet (8 pp, sha256 f1803fa6e8d6dd9a, retrieved 2026-10-14, 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