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Contents

README

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SJD12C28L01

Liown · ESD Protection Devices · SOD-123FL

SJD12C28L01 from Liown, in a SOD-123FL. 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 Liown
Package SOD-123FL
Category TVS/Fuse/Board Level 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
Reverse stand-off voltage (bidirectional) VR 28 V 2
Breakdown voltage min VB 31.1 V @IT=1 mA 2
Breakdown voltage max VB 34.4 V @IT=1 mA 2
Maximum clamping voltage VC 45.4 V @IPP=4.4 A 2
Reverse leakage current IR 1 μA @VR=28 V 2
Peak pulse power dissipation, 8/20μs waveform PPPM 1000 W tp=8/20μs waveform 1
Peak pulse power dissipation, 10/1000μs waveform PPPM 200 W 10/1000μs waveform (Note1, Note2, Fig.1) 1
Steady state power dissipation PM(AV) 1 W TL=75℃ (Fig.5) 1
Operating junction and storage temperature range TJ,TSTG -55 150 ℃ 1
Typical thermal resistance junction to lead RθJL 100 ℃/W 1
Typical thermal resistance junction to ambient RθJA 220 ℃/W 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper 2. Each terminal is surface Mounted on the 5.0mm×5.0mm (0.03mm thick) copper pads. 1

CAD (KiCad official)

  • Symbol: SJD12C28L01
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: sjd12c28l01-etched.step / sjd12c28l01-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sjd12c28l01.step / sjd12c28l01.glb are the bare package body.

Provenance

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

  • Datasheet: Liown datasheet (7 pp, sha256 2af73f617a9b968b, retrieved 2026-10-21, 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