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MURS120T3G-FS

FUXINSEMI · Diodes - General Purpose · SMB

MURS120T3G-FS from FUXINSEMI, in a SMB. 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SMB
Category Diodes
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 repetitive peak reverse voltage VRRM 200 V TA=25°C 1
Maximum RMS voltage VRMS 140 V TA=25°C 1
Maximum continuous reverse voltage VR 200 V TA=25°C 1
Non-repetitive peak forward surge current IFSM 40 A 8.3ms single half sine-wave 1
Maximum instantaneous forward voltage VF 0.875 V IF=1.0A, TJ=25°C 1
Maximum instantaneous forward voltage VF 0.71 V IF=1.0A, TJ=125°C 1
Maximum reverse recovery time trr 25 ns IF=0.5A, IR=1A, Irr=0.25A 1
Typical junction capacitance CJ 15 pF 1 MHz, VR=4.0 VDC 1
Operating junction temperature range TJ -55 175 °C 1
Storage temperature range TSTG -65 175 °C 1

CAD (KiCad official)

  • Symbol: MURS120T3G-FS
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: murs120t3g-fs-etched.step / murs120t3g-fs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); murs120t3g-fs.step / murs120t3g-fs.glb are the bare package body.

Provenance

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

  • Datasheet: FUXINSEMI datasheet (4 pp, sha256 093c231148e20cd7, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band 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