component

AQ4020-01FTG

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AQ4020-01FTG

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

AQ4020-01FTG 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 Pin 1 passive One of the two terminals of the unidirectional AQ4020-01FTG TVS diode, rated for a 3.3V reverse standoff voltage, 3.5V minimum breakdown voltage and 30A peak pulse current (tp=8/20µs).
2 Pin 2 passive The other terminal of the unidirectional AQ4020-01FTG TVS diode, sharing the same 3.3V reverse standoff, 3.5V minimum breakdown and 30A peak pulse current ratings as Pin 1.

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 Current IPP 30 A tp=8/20μs 2
Peak Pulse Power PPk 735 W tp=8/20μs 2
Breakdown Voltage VBD 3.5 V IR=2uA 2
Reverse Standoff Voltage VRWM 3.3 V IR≤1μA 2
Leakage Current ILEAK 0.1 0.5 μA VR=3.3V 2
Clamp Voltage VC 6.6 V IPP=1A, tp=8/20µs, Fwd 2
Clamp Voltage VC 14.2 V IPP=10A, tp=8/20µs, Fwd 2
Clamp Voltage VC 24.5 V IPP=30A, tP=8/20μs, Fwd 2
ESD Withstand Voltage (contact) VESD -30 30 kV IEC 61000-4-2 (Contact Discharge) 2
ESD Withstand Voltage (air) VESD -30 30 kV IEC 61000-4-2 (Air Discharge) 2
Dynamic Resistance RDYN 0.4 Ω TLP, tP=100ns, I/O to GND 2
Diode Capacitance CD 2.5 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: AQ4020-01FTG
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: aq4020-01ftg-etched.step / aq4020-01ftg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aq4020-01ftg.step / aq4020-01ftg.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (5 pp, sha256 63e5fde6b9c20a01, retrieved 2026-10-30, 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