C3M0021120K

@@ -0,0 +1,46 @@+# C3M0021120K++**Wolfspeed** · Silicon Carbide Field Effect Transistor (MOSFET) · TO-247-4++C3M0021120K from Wolfspeed, in a TO-247-4. 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 | D | passive | Drain. 1200 V max drain-source voltage (V_DS_max). Continuous drain current 100 A at T_C=25°C (74 A at T_C=100°C). Electrically connected to the tab (pin 5) for heatsinking. R_DS(on) typ 21 mΩ at V_GS=15 V, I_D=50 A. |+| 2 | S | passive | Power Source (main power current path). Carries the drain-source current back to the load; typically bonded to the high-current source terminal. Should not be used as the gate-driver return in this 4-lead package (use pin 3 for that). |+| 3 | SS | passive | Driver Source (Kelvin source). Low-inductance sense connection to the source used as the gate-driver return reference to eliminate common-source inductance and reduce switching losses / gate ringing. |+| 4 | G | input | Gate. Recommended drive V_GS = -4 V / +15 V (V_GS_max dynamic -8/+19 V, static -4/+15 V). Gate threshold V_GS(th) typ 2.5 V. Total gate charge Q_g typ 162 nC; internal gate resistance R_G(int) typ 3.3 Ω. |+| 5 | D | passive | Drain (metal tab). Same net as pin 1; provides the thermal / mechanical mounting surface (R_θJC typ 0.32 °C/W). Must be treated as electrically live at drain potential (up to 1200 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Wolfspeed |+| Package | TO-247-4 |+| Category | Silicon Carbide (SiC) Devices |+| Pins | 5 |++## Ordering variants++Same part, different packaging or reel option.++- `C3M0021120K`++## CAD (KiCad official)++- Symbol: `C3M0021120K`+- Footprint: `Package_TO_SOT_THT:TO-247-4_Vertical`+- 3D model: TO-247-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Wolfspeed datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603168924103942144) (12 pp, sha256 `cdd5e1f0529f7383`, 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/c3m0021120k-datasheet.pdf)

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