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Contents

README

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MF-FSMF035X-2

BOURNS · Resettable Fuses · 0603

MF-FSMF035X-2 from BOURNS, in a 0603. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A passive End terminal 1 of the PTC resettable fuse; device is electrically symmetric - Ihold = 0.35 A, Itrip = 0.75 A, Vmax = 6 V, Imax = 40 A, Rmin = 0.200 Ω, R1max = 1.400 Ω at 23 °C, time to trip ≤ 8 s, tripped power dissipation 0.5 W.
2 B passive End terminal 2 of the PTC resettable fuse; electrically identical to pin 1 - Ihold = 0.35 A, Itrip = 0.75 A, Vmax = 6 V, Imax = 40 A, Rmin = 0.200 Ω, R1max = 1.400 Ω at 23 °C, time to trip ≤ 8 s, tripped power dissipation 0.5 W.

Key specifications

Parameter Value
Manufacturer BOURNS
Package 0603
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: MF-FSMF035X-2
  • Footprint: Resistor_SMD:R_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: mf-fsmf035x-2-etched.step / mf-fsmf035x-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mf-fsmf035x-2.step / mf-fsmf035x-2.glb are the bare package body.

Provenance

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

  • Datasheet: BOURNS datasheet (4 pp, sha256 94b9b77c66911442, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (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