# CI15S120M3

**Tokmas** · SiC Diodes · TO-263-2

CI15S120M3 from Tokmas, in a TO-263-2. 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 | K | passive | Cathode of the SiC Schottky diode. Rated for 1200 V VRRM (1300 V VRSM surge) with reverse leakage of ~35 μA typ at TJ=25°C. |
| 2 | A | passive | Anode of the SiC Schottky diode. Continuous forward current up to 15 A at TC=152.5°C (43.5 A at TC=25°C); VF ≈ 1.6 V typ at IF=15 A. |
| 3 | K | passive | Cathode connected to the exposed metal tab/CASE of the TO-263-2 package. Serves as the primary thermal path (RθJC = 0.7 °C/W) and is electrically common with Pin 1. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Tokmas |
| Package | TO-263-2 |
| Category | Silicon Carbide (SiC) Devices |
| Pins | 3 |

## Ordering variants

Same part, different packaging or reel option.

- `CI15S120M3`

## CAD (KiCad official)

- Symbol: `CI15S120M3`
- Footprint: `Package_TO_SOT_SMD:TO-263-2`
- 3D model: TO-263-2 (KiCad packages3D, STEP)
- 3D model files: `ci15s120m3-etched.step` / `ci15s120m3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ci15s120m3.step` / `ci15s120m3.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/8588916866211860480) (5 pp, sha256 `b9b0d741eb1531f5`, 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/ci15s120m3-datasheet.pdf)