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SMF5.0A KE

Shenzhen Jinkaisheng Elec · ESD Protection Devices · SOD-123FL

SMF5.0A KE from Shenzhen Jinkaisheng Elec, 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 K passive Cathode (marked end) of the unidirectional SMF5.0A TVS, with VR 5.0V stand-off, VBR 6.40-7.00V at 10mA and VC max 9.2V at IPP 21.7A (10/1000μs).
2 A passive Anode of the unidirectional SMF5.0A TVS, which conducts in the forward direction with VF max 3.5V at 20A.

Key specifications

Parameter Value
Manufacturer Shenzhen Jinkaisheng Elec
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 breakdown voltage VBR 6.4 7 V @IT=10mA, TA=25℃ 2
Reverse stand-off voltage VR 5 V TA=25℃ 2
Reverse leakage current IR 400 μA @VR=5.0V, TA=25℃ 2
Clamping voltage VC 9.2 V @IPP=21.7A, 10/1000μs 2
Peak pulse current IPP 21.7 A 10/1000μs waveform 2
Test current IT 10 mA VBR test 2
Maximum instantaneous forward voltage VF 3.5 V at 20A for unidirectional 1
Peak pulse power dissipation PPP 200 W 10/1000μs waveform 1
Steady state power dissipation PM(AV) 2.8 W TL=75℃ 1
Storage and operating junction temperature range TSTG/TJ -55 150 ℃ 1
Thermal resistance junction to lead RθJL 100 ℃/W typical 1
Thermal resistance junction to ambient RθJA 220 ℃/W typical 1

CAD (KiCad official)

  • Symbol: SMF5.0A KE
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: smf5-0a-ke-etched.step / smf5-0a-ke-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf5-0a-ke.step / smf5-0a-ke.glb are the bare package body.

Provenance

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

  • Datasheet: Shenzhen Jinkaisheng Elec datasheet (6 pp, sha256 66f697035311928f, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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