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SD12CT1G

Public Made by Adom

by adom

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

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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SD12CT1G

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

SD12CT1G from onsemi, 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 terminal of the bi-directional ESD protection diode, per the SOD-323 Style 1 package drawing; the datasheet gives no separate pin-level electrical limits.
2 ANODE passive Anode terminal of the bi-directional ESD protection diode, per the SOD-323 Style 1 package drawing; the datasheet gives no separate pin-level electrical limits.

Key specifications

Parameter Value
Manufacturer onsemi
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 Working Voltage (Note 2) VRWM 12 V 2
Breakdown Voltage (Note 3) VBR 13.3 V IT = 1 mA 2
Reverse Leakage Current IR 1 A VRWM = 12 V 2
Clamping Voltage VC 19 V IPP = 5 A, (8 x 20 sec Waveform) 2
Additional Clamping Voltage VC 24 V IPP = 15 A, (8 x 20 sec Waveform) 2
Maximum Peak Pulse Current IPP 15 A 8 x 20 sec Waveform 2
Capacitance Cj 64 pF VR = 0 V, f = 1 MHz 2
Capacitance Cj 36 pF VR = 12 V, f = 1 MHz 2
Peak Power Dissipation Ppk 350 W @ 20 s @ TL ≤ 25°C 2
IEC 61000-4-2 (ESD) Air -30 30 kV Air 2
IEC 61000-4-2 (ESD) Contact -30 30 kV Contact 2
IEC 61000-4-4 (EFT) 40 A 2
Total Device Dissipation PD 200 mW FR-5 Board, (Note 1) @ TA = 25°C 2
Thermal Resistance from Junction-to-Ambient RJA 635 °C/W 2
Junction and Storage Temperature Range TJ, Tstg -65 150 °C 2
Lead Solder Temperature - Maximum TL 260 °C 10 second duration 2

CAD (KiCad official)

  • Symbol: SD12CT1G
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: sd12ct1g-etched.step / sd12ct1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sd12ct1g.step / sd12ct1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (3 pp, sha256 95c9ab2ca41a05c3, retrieved 2026-10-22, 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