component

S3M

Public Made by Adom

by adom

TWGMC Diodes - General Purpose, SMB. 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 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 7d ago
viewers s3m: viewers · Ray 7d ago
package.json Publish 0.1.0 · Ray 7d ago
page.json Set visibility: public · Ray 7d ago
README.md Publish 0.1.0 · Ray 7d ago
s3m-etched.glb Publish 0.1.0 · Ray 7d ago
s3m-etched.step s3m: factory component page (tier=lcsc) · Ray 7d ago
s3m-hero.glb s3m: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
s3m-hero.overlay.json Publish 0.1.0 · Ray 7d ago
s3m.glb Publish 0.1.0 · Ray 7d ago
s3m.kicad_mod Publish 0.1.0 · Ray 7d ago
s3m.kicad_sym Publish 0.1.0 · Ray 7d ago
s3m.lbr Publish 0.1.0 · Ray 7d ago
s3m.step Publish 0.1.0 · Ray 7d ago

S3M

TWGMC · Diodes - General Purpose · SMB

S3M from TWGMC, 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 TWGMC
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 (S3M) VRRM 1000 V S3M column (1000 V variant) 1
Maximum RMS voltage (S3M) VRMS 700 V S3M column (1000 V variant) 1
Maximum DC blocking voltage (S3M) VDC 1000 V S3M column (1000 V variant) 1
Operating junction and storage temperature range TJ,TSTG -50 150 C 1
Maximum average forward rectified current I(AV) 3 Amps at TL=110 C 1
Peak forward surge current IFSM 100 Amps 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) 1
Maximum instantaneous forward voltage VF 1.1 Volts at 3.0A 1
Maximum DC reverse current IR 5 µA TA=25 C, at rated DC blocking voltage 1
Maximum DC reverse current IR 100 µA TA=100 C, at rated DC blocking voltage 1
Typical junction capacitance CJ 60 pF Measured at 1MHz and applied reverse voltage of 4.0V D.C. 1
Typical thermal resistance, junction to ambient RθJA 50 C/W P.C.B. mounted with 0.2x0.2" (5.0x5.0mm) copper pad areas 1

CAD (KiCad official)

  • Symbol: S3M
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: s3m-etched.step / s3m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); s3m.step / s3m.glb are the bare package body.

Provenance

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

  • Datasheet: TWGMC datasheet (2 pp, sha256 992648d509e5ed77, retrieved 2026-10-21, 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