component

SMF4L9.0CA

Public Made by Adom

by adom

Littelfuse TVS, SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SMF4L9.0CA

Littelfuse · TVS · SOD-123FL

SMF4L9.0CA from Littelfuse, 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 A1 passive Bi-directional TVS terminal (SMF4L9.0CA, VR 9.0V, VBR 10.00-11.10V at 1mA, VC 15.4V at Ipp 26.4A); no polarity, interchangeable with the other terminal.
2 A2 passive Bi-directional TVS terminal (SMF4L9.0CA, VR 9.0V, VBR 10.00-11.10V at 1mA, VC 15.4V at Ipp 26.4A); no polarity, interchangeable with the other terminal.

Key specifications

Parameter Value
Manufacturer Littelfuse
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
Breakdown Voltage VBR 10 11.1 V @ IT = 1 mA, bi-directional SMF4L9.0CA 2
Test Current IT 1 mA VBR measured after IT applied for 300µs 2
Reverse Stand-off Voltage VR 9 V 2
Maximum Reverse Leakage IR 5 µA @ VR 2
Maximum Peak Pulse Current Ipp 26.4 A 10/1000µs exponential wave, derated per Fig.3 2
Maximum Clamping Voltage VC 15.4 V @ Ipp 2
Peak Pulse Power Dissipation 8/20μs PPPM 2000 W TA=25ºC, non-repetitive current pulse 1
Peak Pulse Power Dissipation 10/1000μs PPPM 400 W TA=25ºC, non-repetitive current pulse 1
Power Dissipation On Infinite Heat Sink PD 1 W TL=50ºC 1
Operating and Storage Temperature Range TJ,TSTG -55 150 °C 1
Thermal Resistance Junction to Ambient RƟJA 220 °C/W 1
Thermal Resistance Junction to Lead RƟJL 100 °C/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 tin • Matte tin lead-free plated • Halogen-free and RoHS 1

CAD (KiCad official)

  • Symbol: SMF4L9.0CA
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: smf4l9-0ca-etched.step / smf4l9-0ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf4l9-0ca.step / smf4l9-0ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 7971ab636790fc84, 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