component

SMF4L48CA

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), SOD-123FL. Pinout cross-checked by two models against the datasheet, 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
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 25d ago
viewers smf4l48ca: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
package.json Publish 0.1.0 · Ray 25d ago
page.json Set visibility: public · Ray 25d ago
README.md Publish 0.1.0 · Ray 25d ago
smf4l48ca-etched.glb Publish 0.1.0 · Ray 25d ago
smf4l48ca-etched.step smf4l48ca: factory component page (tier=lcsc) · Ray 25d ago
smf4l48ca-hero.glb smf4l48ca: hero GLB from the etched model (keeps the MPN mark) · Ray 25d ago
smf4l48ca-hero.overlay.json Publish 0.1.0 · Ray 25d ago
smf4l48ca.glb Publish 0.1.0 · Ray 25d ago
smf4l48ca.kicad_mod Publish 0.1.0 · Ray 25d ago
smf4l48ca.kicad_sym smf4l48ca: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
smf4l48ca.lbr smf4l48ca: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
smf4l48ca.step Publish 0.1.0 · Ray 25d ago

SMF4L48CA

Littelfuse · ESD And Surge Protection (TVS/ESD) · SOD-123FL

SMF4L48CA 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 with no polarity (SMF4L48CA: VR 48 V, VBR 53.30-58.90 V at 1 mA, VC 77.4 V at Ipp 5.2 A); connects to the protected line or ground interchangeably with pin 2.
2 A2 passive Bi-directional TVS terminal with no polarity (SMF4L48CA: VR 48 V, VBR 53.30-58.90 V at 1 mA, VC 77.4 V at Ipp 5.2 A); connects to the protected line or ground interchangeably with pin 1.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SOD-123FL
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: SMF4L48CA
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123FL (KiCad packages3D, STEP)
  • 3D model files: smf4l48ca-etched.step / smf4l48ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smf4l48ca.step / smf4l48ca.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 2026-10-12, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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