main
Download ZIP Propose a change
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 4h ago
viewers sd22-01ftg: viewers · Ray 3h ago
package.json Publish 0.1.0 · Ray 4h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 4h ago
sd22-01ftg-etched.glb Publish 0.1.0 · Ray 4h ago
sd22-01ftg-etched.step sd22-01ftg: factory component page (tier=lcsc) · Ray 4h ago
sd22-01ftg-hero.glb sd22-01ftg: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
sd22-01ftg-hero.overlay.json Publish 0.1.0 · Ray 4h ago
sd22-01ftg.glb Publish 0.1.0 · Ray 4h ago
sd22-01ftg.kicad_mod Publish 0.1.0 · Ray 4h ago
sd22-01ftg.kicad_sym Publish 0.1.0 · Ray 4h ago
sd22-01ftg.lbr Publish 0.1.0 · Ray 4h ago
sd22-01ftg.step Publish 0.1.0 · Ray 4h ago

SD22-01FTG

Littelfuse · TVS · SOD-323

SD22-01FTG from Littelfuse, in a SOD-323. 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 the unidirectional SD22 TVS diode; the text does not state whether it is the I/O line or ground, and the tape-and-reel section marks Pin1 orientation.
2 2 passive Terminal 2 of the unidirectional SD22 TVS diode; the text does not state whether it is the I/O line or ground.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SOD-323
Category Circuit 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
Operating Temperature TOP -40 150 °C 2
Storage Temperature TSTOR -55 150 °C 2
Peak Pulse Power Ppk 950 W tp=8/20μs 2
Breakdown Voltage VBR 23 V IR=1mA 2
Reverse Standoff Voltage VRWM 22 V IR=1μA 2
Reverse Leakage Current ILEAK 0.02 0.5 μA VR=22V 2
Clamp Voltage VC 35.5 V IPP=27A, tp=8/20µs, Fwd 2
Dynamic Resistance RDYN 0.13 Ω TLP, tp=100ns, I/O to Ground 2
Peak Pulse Current Ipp 27 A tp=8/20µs 2
ESD Withstand Voltage (Contact Discharge) VESD -30 30 kV IEC 61000-4-2 (Contact Discharge) 2
ESD Withstand Voltage (Air Discharge) VESD -30 30 kV IEC 61000-4-2 (Air Discharge) 2
Diode Capacitance CI/O-GND 160 pF Reverse Bias=0V, f=1MHz 2

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 Alloy tin Lead Plating Matte Tin Lead Material Copper Alloy 4

CAD (KiCad official)

  • Symbol: SD22-01FTG
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: sd22-01ftg-etched.step / sd22-01ftg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sd22-01ftg.step / sd22-01ftg.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (5 pp, sha256 b71b4ee36e8c4ba9, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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