# SL25T120FL

**Slkor(SLKORMICRO Elec.)** · IGBT Transistors / Modules · TO-247

SL25T120FL from Slkor(SLKORMICRO Elec.), in a TO-247. 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; drive pin, with maximum gate-emitter voltage VGES of ±20 V and threshold VGE(th) of 4.5 V to 6.5 V. |
| 2 | C | passive | Collector (also connected to the mounting tab, with the anti-parallel diode cathode); rated VCES 1200 V and 50 A at TC=25℃ (25 A at TC=100℃). |
| 3 | E | passive | Emitter (anti-parallel diode anode); diode forward current rated 25 A at TC=100℃. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | TO-247 |
| 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 Voltage | Vces |  |  | 1200 | V |  | 1 |
| Collector Current-continuous | Ic |  |  | 50 | A | Tc=25℃ | 1 |
| Collector Current-continuous | Ic |  |  | 25 | A | Tc=100℃ | 1 |
| Collector Current-pulse | ICM |  |  | 60 | A |  | 1 |
| Diode forward current | IF |  |  | 25 | A | @ TC=100°C | 1 |
| Gate-Emitter Voltage | VGES | -20 |  | 20 | V |  | 1 |
| Turn-off safe area |  |  |  | 60 | A |  | 1 |
| Power Dissipation | PD |  |  | 350 | W | TC=25℃ | 1 |
| Diode Forward Current |  |  |  | 25 | A | TC=100℃ | 1 |
| Operating and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | ℃ |  | 1 |
| Maximum Lead Temperature for Soldering Purposes | TL |  |  | 300 | ℃ |  | 1 |
| Collector-Emitter Breakdown Voltage | BVCES | 1200 |  |  | V | IC=500uA,VGE=0V | 2 |
| Zero Gate Voltage Collector Current | ICES |  |  | 0.2 | mA | VCE=1200V,VGE=0V,TC=25℃ | 2 |
| Zero Gate Voltage Collector Current | ICES |  |  | 2 | mA | TC=100℃ | 2 |
| Zero Gate Voltage Collector Current | ICES |  |  | 2.5 | mA | TC=150℃ | 2 |
| Gate-body leakage current, forward | IGESF |  |  | -100 | nA | VCE=0V,VGE=-20V | 2 |
| Gate-Emitter Threshold Voltage | VGE(th) | 4.5 |  | 6.5 | V | VCE=VGE,Ic=600uA | 2 |
| Collector-Emitter saturation Voltage | VCESAT |  | 1.75 | 2.5 | V | VGE=15V,IC=25A | 2 |
| Short Collector current | Ic(sc) |  |  | 160 | A | VGE=15V, VCE=600V, tsc<10us, Tc=25℃ | 2 |
| Input capacitance | Cies |  | 1600 | 2400 | pF | VCE=25V, VGE=0V, f=1.0MHZ | 2 |
| Output capacitance | Coes |  | 120 | 190 | pF | VCE=25V, VGE=0V, f=1.0MHZ | 2 |
| Reverse transfer capacitance | Cres |  | 80 | 130 | pF | VCE=25V, VGE=0V, f=1.0MHZ | 2 |
| Diode Forward Voltage | VF |  | 1.77 | 2.8 | V | VGE=0V,IF=25A | 2 |
| Thermal Resistance, Junction to Case | Rth(j-c) |  |  | 0.4 | ℃/W |  | 3 |
| Thermal Resistance, Junction to Ambient | Rth(j-A) |  |  | 40 | ℃/W |  | 3 |

## CAD (KiCad official)

- Symbol: `SL25T120FL`
- Footprint: `Package_TO_SOT_THT:TO-247-3_Vertical`
- 3D model: TO-247 (KiCad packages3D, STEP)
- 3D model files: `sl25t120fl-etched.step` / `sl25t120fl-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sl25t120fl.step` / `sl25t120fl.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor(SLKORMICRO Elec.) datasheet](docs/sl25t120fl-datasheet.pdf) (9 pp, sha256 `0a26c4ee9164aaf7`, retrieved 2026-11-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sl25t120fl-datasheet.pdf)