# 4N65KG-TC-TN3-R

**UTC Unisonic Tech** · MOSFETs · TO-252

4N65KG-TC-TN3-R from UTC Unisonic Tech, in a TO-252. 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 terminal of the 650 V N-channel power MOSFET; gate-source voltage VGSS is rated ±30 V (absolute maximum). |
| 2 | D | passive | Drain terminal of the MOSFET; drain-source voltage VDSS is rated 650 V and continuous drain current ID is rated 4.0 A at TC = 25°C. |
| 3 | S | passive | Source terminal of the MOSFET; maximum continuous drain-source diode forward current IS is 4.0 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | TO-252 |
| 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 |
|---|---|---|---|---|---|---|---|
| Gate Threshold Voltage | VGS(TH) | 2 |  | 4 | V | VDS = VGS, ID = 250μA | 4 |
| Static Drain-Source On-State Resistance | RDS(ON) |  | 2.2 | 2.5 | Ω | VGS = 10 V, ID = 2.0A | 4 |
| Drain-Source Voltage | VDSS |  |  | 650 | V | TC = 25°C | 3 |
| Gate-Source Voltage | VGSS | -30 |  | 30 | V | TC = 25°C | 3 |
| Continuous Drain Current | ID |  |  | 4 | A | TC = 25°C | 3 |
| Pulsed Drain Current | IDM |  |  | 16 | A | (Note2) | 3 |
| Avalanche Energy Single Pulsed | EAS |  |  | 113 | mJ | Single Pulsed (Note3) | 3 |
| Peak Diode Recovery dv/dt | dv/dt |  |  | 3.79 | V/ns | (Note4) | 3 |
| Power Dissipation (TO-251S2/TO-252) | PD |  |  | 50 | W | TC = 25°C | 3 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 3 |
| Operating Temperature | TOPR | -55 |  | 150 | °C |  | 3 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 3 |
| Junction to Ambient (TO-251/TO-251S/TO-251S2/TO-252) | θJA |  | 83 |  | °C/W | Surface mounted on 1 inch² FR-4 board with 2OZ copper | 3 |
| Junction to Case (TO-251/TO-251S/TO-251S2/TO-252) | θJC |  | 2.5 |  | °C/W | (Note) surface mounted on 1 inch² FR-4 board with 2OZ copper | 3 |

## CAD (KiCad official)

- Symbol: `4N65KG-TC-TN3-R`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `4n65kg-tc-tn3-r-etched.step` / `4n65kg-tc-tn3-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `4n65kg-tc-tn3-r.step` / `4n65kg-tc-tn3-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904752849313792) (8 pp, sha256 `6f6d8452ee17e735`, retrieved 2026-10-20, tier: lcsc)
- **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/4n65kg-tc-tn3-r-datasheet.pdf)