component

HESD56181W12-2

Public Made by Adom

by adom

HXY MOSFET Electrostatic And Surge Protection (TVS/ESD), SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protectionhesd56181w12-2factory-2.0.0extractor-text

Verified HESD56181W12-2

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: HESD56181W12-2 · SOD-323 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 5-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SOD-323
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-pmi5subr/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✓ hesd56181w12-2.kicad_sym✓ hesd56181w12-2.kicad_mod✓ hesd56181w12-2.step
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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 20h ago
viewers hesd56181w12-2: viewers · Ray 20h ago
hesd56181w12-2-etched.glb Publish 0.1.0 · Ray 20h ago
hesd56181w12-2-etched.step hesd56181w12-2: factory component page (tier=lcsc) · Ray 20h ago
hesd56181w12-2-hero.glb hesd56181w12-2: hero GLB from the etched model (keeps the MPN mark) · Ray 20h ago
hesd56181w12-2-hero.overlay.json Publish 0.1.0 · Ray 20h ago
hesd56181w12-2.glb Publish 0.1.0 · Ray 20h ago
hesd56181w12-2.kicad_mod Publish 0.1.0 · Ray 20h ago
hesd56181w12-2.kicad_sym Publish 0.1.0 · Ray 20h ago
hesd56181w12-2.lbr Publish 0.1.0 · Ray 20h ago
hesd56181w12-2.step Publish 0.1.0 · Ray 20h ago
package.json Publish 0.1.0 · Ray 20h ago
page.json Set visibility: public · Ray 20h ago
README.md Publish 0.1.0 · Ray 20h ago
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray 20h ago

HESD56181W12-2

HXY MOSFET · Electrostatic And Surge Protection (TVS/ESD) · SOD-323

HESD56181W12-2 from HXY MOSFET, 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
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 Breakdown Voltage VBR 13.5 V IT = 1mA 2
Reverse Leakage Current IR 1 μA VRWM = 12V 2
Clamping Voltage VC 14.8 15.5 V IPP = 30A, tp = 8/20μs 2
Clamping Voltage VC 19 28 V IPP = 55A, tp = 8/20μs 2
Junction Capacitance CJ 450 pF VR = 0V, f = 1MHz 2
Reverse Working Voltage VRWM 12 V 2
Peak Pulse Power PPP 1540 W tp = 8/20μs 1
Maximum Lead Temperature for Soldering TL 260 °C during 10s 1
Storage Temperature Range Tstg -55 155 °C 1
Operating Temperature Range Top -40 125 °C 1
Maximum Junction Temperature Tj 150 °C 1
ESD Immunity (IEC61000-4-2) air discharge -30 30 kV IEC61000-4-2, air discharge 1
ESD Immunity (IEC61000-4-2) contact discharge -30 30 kV IEC61000-4-2, contact discharge 1
EFT Immunity (IEC61000-4-4) 40 A IEC61000-4-4, 5/50 ns 1

CAD (KiCad official)

  • Symbol: HESD56181W12-2
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: hesd56181w12-2-etched.step / hesd56181w12-2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hesd56181w12-2.step / hesd56181w12-2.glb are the bare package body.

Provenance

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

  • Datasheet: HXY MOSFET datasheet (5 pp, sha256 6a542d988abdc776, retrieved 2026-11-05, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band 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