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CI20S120D3
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Tokmas SiC Diodes, TO-247-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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ci20s120d3: laser-etched CAD + chip hero (factory 2.0.0 backfill)
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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ci20s120d3.step/ci20s120d3.glbare 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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894868517367808) (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](docs/ci20s120d3-datasheet.pdf)