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Contents

README

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AQ4022-01FTG-C

Littelfuse · ESD And Surge Protection (TVS/ESD) · SOD-323

AQ4022-01FTG-C 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 Pin 1 passive One terminal of the bidirectional TVS pair, with a reverse standoff voltage of 12 V (IR ≤ 1 µA), a minimum breakdown of 13.3 V at 1 mA, and a diode capacitance of 1.3 pF typical (2 pF max) at 0 V bias, all specified Pin 1 to Pin 2.
2 Pin 2 passive The other terminal of the bidirectional TVS pair, with the same Pin 1 to Pin 2 limits: 12 V reverse standoff, 13.3 V minimum breakdown at 1 mA, 0.1 µA leakage at VR = 12 V, and 15 A peak pulse current (tp = 8/20 µs) rating.

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
Reverse Standoff Voltage VRWM 12 V IR≤1μA with Pin 1 to Pin 2 2
Breakdown Voltage VBD 13.3 V IT=1mA with Pin 1 to Pin 2 2
Leakage Current ILEAK 0.1 μA VR=12V with Pin 1 to Pin 2 2
Clamp Voltage VC 19 V IPP=1A, tp=8/20µs, Fwd 2
Clamp Voltage VC 20 V IPP=2A, tp=8/20µs, Fwd 2
Clamp Voltage VC 28 V IPP=10A, tp=8/20µs, Fwd 2
Clamp Voltage VC 33 V IPP=15A, tp=8/20µs, Fwd 2
ESD Withstand Voltage, IEC 61000-4-2 Contact Discharge VESD -30 30 kV IEC 61000-4-2 (Contact Discharge) 2
ESD Withstand Voltage, IEC 61000-4-2 Air Discharge VESD -30 30 kV IEC 61000-4-2 (Air Discharge) 2
Diode Capacitance CD 1.3 2 pF Reverse Bias=0V, f=1MHz, Pin 1 to Pin 2 2
Peak Current (tp=8/20μs) IPP 15 A tp=8/20μs 2
Peak Pulse Power (tp=8/20μs) PPK 500 W tp=8/20μs 2
Operating Temperature TOP -40 150 °C 2
Storage Temperature TSTOR -55 150 °C 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: AQ4022-01FTG-C
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: aq4022-01ftg-c-etched.step / aq4022-01ftg-c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aq4022-01ftg-c.step / aq4022-01ftg-c.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (5 pp, sha256 38c2ef9f64dc862d, retrieved 2026-10-22, 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