component

ESD3Z12

Public Made by Adom

by adom

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

componentcircuit protectionesd3z12factory-2.0.0extractor-text

Verified ESD3Z12

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: ESD3Z12 · SOD-323 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 3-page datasheet
  • ✓distributor: lcsc C5362070, digikey 2721-ESD3Z12TR-ND, mouser 637-ESD3Z12
  • ✓family: D_SOD-323
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-rtjm837u/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✓ esd3z12.kicad_sym✓ esd3z12.kicad_mod✓ esd3z12.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

ESD3Z12

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

ESD3Z12 from CBI, 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 Cathode passive Cathode of the ESD3Z12 TVS diode, with a reverse stand-off voltage VRWM of 12 V, maximum reverse current of 1 µA at VRWM, and minimum breakdown voltage of 13.3 V at 1 mA.
2 Anode passive Anode of the ESD3Z12 TVS diode, with a maximum forward voltage VF of 0.9 V at IF of 10 mA.

Key specifications

Parameter Value
Manufacturer CBI
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 stand-off voltage VRWM 12 V Ta = 25 °C 1
Reverse current IR 1 µA Ta = 25 °C, at VRWM 1
Breakdown voltage VBR 13.3 V Ta = 25 °C, at IT = 1 mA 1
Clamping voltage (first value) VC 19 V Ta = 25 °C, at IPP = 5 A 1
Clamping voltage (second value) VC 25 V Ta = 25 °C, at IPP = 15 A 1
Capacitance Cj 150 pF Ta = 25 °C, at f = 1 MHz 1
Forward voltage VF 0.9 V Ta = 25 °C, at IF = 10 mA 1
Peak pulse power Ppk 350 W tp = 8/20 µs 1
Peak pulse current IPP 24 A tp = 8/20 µs 1
ESD voltage VPP 30 KV HRB waveform per IEC61000-4-2 1
Operating junction temperature Tj -55 125 °C 1
Storage temperature range Tstg -55 150 °C 1

CAD (KiCad official)

  • Symbol: ESD3Z12
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: esd3z12-etched.step / esd3z12-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); esd3z12.step / esd3z12.glb are the bare package body.

Provenance

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

  • Datasheet: CBI datasheet (3 pp, sha256 5aceb669a47152d0, 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