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CI20S120D3

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by adom

Tokmas SiC Diodes, TO-247-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentsilicon carbide (sic) devicesci20s120d3
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Datasheet

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Contents

README

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CI20S120D3

Tokmas · SiC Diodes · TO-247-3

CI20S120D3 from Tokmas, in a TO-247-3. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A1 passive Anode of internal Schottky die 1. Per-leg forward current 34 A @ TC=25 °C, VF ≈ 1.5 V typ @ IF=10 A, TJ=25 °C. Blocking voltage 1200 V (VRRM) with respect to the common cathode (pin 2 / CASE).
2 K passive Common cathode of both internal Schottky dies, electrically tied to the metal CASE / heatsink tab. Handles up to 68 A per device continuous forward current and blocks 1200 V (VRRM) against the two anodes (pins 1 and 3). Case must be treated as live at cathode potential for isolation and creepage design.
3 A2 passive Anode of internal Schottky die 2. Per-leg forward current 34 A @ TC=25 °C, VF ≈ 1.5 V typ @ IF=10 A, TJ=25 °C. Blocking voltage 1200 V (VRRM) with respect to the common cathode (pin 2 / CASE).

Key specifications

Parameter Value
Manufacturer Tokmas
Package TO-247-3
Category Silicon Carbide (SiC) Devices
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • CI20S120D3

CAD (KiCad official)

  • Symbol: CI20S120D3
  • Footprint: Package_TO_SOT_THT:TO-247-3_Vertical
  • 3D model: TO-247-3 (KiCad packages3D, STEP)
  • 3D model files: ci20s120d3-etched.step / ci20s120d3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ci20s120d3.step / ci20s120d3.glb are the bare package body.

Provenance

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

  • Datasheet: Tokmas datasheet (None pp, sha256 d0afd267b4867a31, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF