component

ESD3Z3V3BU

Public Made by Adom

by adom

MDD（Microdiode Electronics） ESD Protection Devices, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionesd3z3v3bufactory-2.0.0extractor-text

Verified ESD3Z3V3BU

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ESD3Z3V3BU · SOD-323 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • •distributor (warn): no ['mouser'] number
  • ✓family: D_SOD-323
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-qa14ber2/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ esd3z3v3bu.kicad_sym✓ esd3z3v3bu.kicad_mod✓ esd3z3v3bu.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

ESD3Z3V3BU

MDD（Microdiode Electronics） · ESD Protection Devices · SOD-323

ESD3Z3V3BU from MDD（Microdiode Electronics）, 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 Pin 1 is one terminal of the single-line ESD protection diode, which the datasheet rates for 3.3V reverse working voltage, 0.25pF typical capacitance, and ±15kV air / ±8kV contact IEC 61000-4-2 protection.
2 2 passive Pin 2 is the other terminal of the single-line ESD protection diode, which the datasheet rates for 3.3V reverse working voltage, 0.25pF typical capacitance, and ±15kV air / ±8kV contact IEC 61000-4-2 protection.

Key specifications

Parameter Value
Manufacturer MDD（Microdiode Electronics）
Package SOD-323
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 Working Voltage VRWM 3.3 V 2
Reverse Breakdown Voltage VBR 4.2 V IT = 1mA 2
Reverse Leakage Current IR 100 nA VRWM = 3.3V 2
Clamping Voltage VC 12 V IPP = 1A, tp = 8/20μs 2
Clamping Voltage VC 25 V IPP = 4A, tp = 8/20μs 2
Junction Capacitance CJ 0.25 0.4 pF VR = 0V, f = 1MHz 2
ESD per IEC 61000-4-2 (Air) VESD -20 20 KV ESD per IEC 61000-4-2 (Air) 1
ESD per IEC 61000-4-2 (Contact) VESD -20 20 KV ESD per IEC 61000-4-2 (Contact) 1
Peak Pulse Power PPP 100 W 8/20us 1
Operating Temperature TOPT -55 125 °C 1
Lead Solder Temperature - Maximum TL 260 °C 10 second duration 1
Storage Temperature TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: ESD3Z3V3BU
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: esd3z3v3bu-etched.step / esd3z3v3bu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esd3z3v3bu.step / esd3z3v3bu.glb are the bare package body.

Provenance

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

  • Datasheet: MDD（Microdiode Electronics） datasheet (4 pp, sha256 aa34183650a93ae0, retrieved 2026-11-05, 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