component

ESD9X12ST5G

Public Made by Adom

by adom

onsemi ESD Protection Devices, SOD-923. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionesd9x12st5gfactory-2.0.0extractor-text

Verified ESD9X12ST5G

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ESD9X12ST5G · SOD-923 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 5-page datasheet
  • ✓distributor: lcsc C82327, digikey ESD9X12ST5GOSTR-ND, mouser 863-ESD9X12ST5G
  • ✓family: D_SOD-923
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-iu8i9_ju/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✓ esd9x12st5g.kicad_sym✓ esd9x12st5g.kicad_mod✓ esd9x12st5g.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 3d ago
viewers esd9x12st5g: viewers · Ray 3d ago
esd9x12st5g-etched.glb Publish 0.1.0 · Ray 3d ago
esd9x12st5g-etched.step esd9x12st5g: factory component page (tier=mfr) · Ray 3d ago
esd9x12st5g-hero.glb esd9x12st5g: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
esd9x12st5g-hero.overlay.json Publish 0.1.0 · Ray 3d ago
esd9x12st5g.glb Publish 0.1.0 · Ray 3d ago
esd9x12st5g.kicad_mod Publish 0.1.0 · Ray 3d ago
esd9x12st5g.kicad_sym Publish 0.1.0 · Ray 3d ago
esd9x12st5g.lbr Publish 0.1.0 · Ray 3d ago
esd9x12st5g.step Publish 0.1.0 · Ray 3d ago
package.json Publish 0.1.0 · Ray 3d ago
page.json Set visibility: public · Ray 3d ago
README.md Publish 0.1.0 · Ray 3d ago
verification.json Verified: Published by the parts factory: tier mfr, 2 pins · Ray 3d ago

ESD9X12ST5G

onsemi · ESD Protection Devices · SOD-923

ESD9X12ST5G from onsemi, in a SOD-923. 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 CATHODE passive Cathode terminal of the unidirectional TVS diode; for the ESD9X12ST5G the working peak reverse voltage VRWM is 12 V, with minimum breakdown VBR of 13.5 V at IT = 1.0 mA.
2 ANODE passive Anode terminal of the unidirectional TVS diode; the device is rated for maximum reverse peak pulse current IPP of 5.9 A with a clamping voltage VC of 23.7 V at maximum IPP.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOD-923
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
Breakdown Voltage VBR 13.5 V @ IT 1.0 mA (Note 2) 2
Maximum Reverse Leakage Current IR 1 A @ VRWM 2
Clamping Voltage VC 23.7 V @ Max IPP 5.9 A (Note 3) 2
Maximum Reverse Peak Pulse Current IPP 5.9 A (Note 3) 2
Max. Capacitance C 30 pF @ VR = 0 and f = 1 MHz 2
Forward Voltage VF 1.1 V @ IF = 10 mA 2
Peak Power Dissipation Ppk 140 W 8 x 20 s 2
Working Peak Reverse Voltage VRWM 12 V 2
Total Power Dissipation on FR-5 Board (Note 1) @ TA = 25°C PD 150 mW FR-5 = 1.0 x 0.75 x 0.62 in. (Note 1) 1
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 1
Lead Solder Temperature - Maximum TL 260 °C 10 Second Duration 1
ESD Voltage Per Human Body Model 16 kV 1
ESD Voltage Per Machine Model 400 V 1
IEC 61000-4-2 (ESD) Contact -30 30 kV 1
IEC 61000-4-2 (ESD) Air -30 30 kV 1

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: 100% Matte Sn (Tin) MOUNTING POSITION: Any 1

CAD (KiCad official)

  • Symbol: ESD9X12ST5G
  • Footprint: Diode_SMD:D_SOD-923
  • 3D model: SOD-923 (KiCad packages3D, STEP)
  • 3D model files: esd9x12st5g-etched.step / esd9x12st5g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esd9x12st5g.step / esd9x12st5g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 a6ca23c32233bcdb, retrieved 2026-11-06, tier: manufacturer)
  • 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