# STGP3NC120HD

**STMicroelectronics** · IGBT Transistors / Modules · TO-220

STGP3NC120HD from STMicroelectronics, in a TO-220. 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 | G | input | Gate of the IGBT, driven relative to the emitter with a gate-emitter voltage rated at ±20 V (VGE), and gate threshold VGE(th) of 2 V to 5 V at VCE = VGE, IC = 250 µA. |
| 2 | C | passive | Collector of the IGBT, rated for a collector-emitter voltage VCES of 1200 V (VGE = 0 V) and a continuous collector current of 14 A at TC = 25 °C for the TO-220 package. |
| 3 | E | passive | Emitter of the IGBT, the other main current terminal, with the collector-emitter limits of VCES 1200 V and 14 A continuous collector current at TC = 25 °C given for the TO-220 package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-emitter breakdown voltage | V(BR)CES | 1200 |  |  | V | VGE = 0 V, IC = 1 mA | 3 |
| Collector-emitter saturation voltage | VCE(sat) |  | 2.3 | 2.8 | V | VGE = 15 V, IC = 3 A | 3 |
| Gate threshold voltage | VGE(th) | 2 |  | 5 | V | VCE = VGE, IC = 250 μA | 3 |
| Collector cut-off current | ICES |  |  | 0.05 | mA | VGE = 0 V, VCE = 1200 V | 3 |
| Collector cut-off current (specified by design, not tested in production) | ICES |  |  | 1 | mA | VGE = 0 V, VCE = 1200 V, TJ = 125 °C | 3 |
| Gate-emitter leakage current | IGES | -100 |  | 100 | nA | VCE = 0 V, VGE = ±20 V | 3 |
| Diode forward on-voltage | VF |  | 1.6 | 2 | V | IF = 1.5 A | 4 |
| Collector-emitter voltage | VCES |  |  | 1200 | V | VGE = 0 V | 2 |
| Continuous collector current at TC = 25 °C | IC |  |  | 14 | A | TO-220 column; TC = 25 °C | 2 |
| Continuous collector current at TC = 100 °C | IC |  |  | 7 | A | TO-220 column; TC = 100 °C | 2 |
| Turn-off latching current | ICL |  |  | 14 | A | Vclamp = 80% VCES, TJ = 150 °C, RG = 10 Ω, VGE = 15 V | 2 |
| Pulsed collector current | ICP |  |  | 20 | A | Pulse width limited by maximum junction temperature and turn-off within RBSOA | 2 |
| Gate-emitter voltage | VGE | -20 |  | 20 | V |  | 2 |
| Diode RMS forward current at TC = 25 °C | IF |  |  | 3 | A | TC = 25 °C | 2 |
| Surge non repetitive forward current | IFSM |  |  | 12 | A | tp = 10 ms sinusoidal | 2 |
| Total power dissipation at TC = 25 °C | PTOT |  |  | 75 | W | TO-220 column; TC = 25 °C | 2 |
| Storage temperature range | Tstg | -55 |  | 150 | °C |  | 2 |
| Thermal resistance, junction-to-case IGBT | RthJC |  | 1.65 |  | °C/W | TO-220 column | 2 |
| Thermal resistance, junction-to-ambient | RthJA |  | 62.5 |  | °C/W |  | 2 |

## CAD (KiCad official)

- Symbol: `STGP3NC120HD`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `stgp3nc120hd-etched.step` / `stgp3nc120hd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stgp3nc120hd.step` / `stgp3nc120hd.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stgp3nc120hd.pdf) (20 pp, sha256 `79ca9206aa12beb3`, retrieved 2026-10-11, tier: manufacturer)
- **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](docs/stgp3nc120hd-datasheet.pdf)