component

KAU3321D5

Public Made by Adom

by adom

KUU ESD Protection Devices, SOD-523. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionkau3321d5factory-2.0.0extractor-text
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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KAU3321D5

KUU · ESD Protection Devices · SOD-523

KAU3321D5 from KUU, in a SOD-523. 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 an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer KUU
Package SOD-523
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
Reverse Breakdown Voltage VBR 5.6 8 V IR = 1mA 2
Reverse Leakage Current IR 0.2 uA VR = 5V 2
Clamping voltage VC 10 V IPP = 1A,TP=8/20us 2
Clamping voltage VC 15 V IPP = 8A,TP=8/20us 2
Junction capacitance CJ 20 pF VR =0V,f =1MHz 2
Reverse Working Voltage VRWM 5 V 2
Peak Pulse Power PPP 120 W tp=8/20μs waveform 2
Peak Pulse Current IPP 8 A 8/20µs 2
ESD per IEC 61000-4-2 (Air) VESD -30 30 KV IEC 61000-4-2 Air 2
ESD per IEC 61000-4-2 (Contact) VESD -30 30 KV IEC 61000-4-2 Contact 2
Operating Temperature Range TJ -55 125 °C 2
Storage Temperature Range Tstg -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 tin  Lead Finish:Matte Tin  Case Material: “Green” Molding Compound.  UL Flammability Classification Rating 94V-0 1

CAD (KiCad official)

  • Symbol: KAU3321D5
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: kau3321d5-etched.step / kau3321d5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kau3321d5.step / kau3321d5.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (5 pp, sha256 b9a6daf870770cdc, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (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