# IRLR7843TR

**UMW** · MOSFETs · TO-252

IRLR7843TR from UMW, 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; the datasheet's absolute maximum gate-to-source voltage is VGS = ±20 V. |
| 2 | D | passive | DRAIN terminal; the datasheet's absolute maximum drain-source voltage is VDS = 30 V, with continuous drain current ID = 161 A at TC = 25°C (VGS = 10 V). |
| 3 | S | passive | SOURCE terminal; the reference terminal for VGS and VDS, with the maximum drain-source voltage of 30 V given in the absolute maximum ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `IRLR7843TR`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `irlr7843tr-etched.step` / `irlr7843tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `irlr7843tr.step` / `irlr7843tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755879732523081728) (12 pp, sha256 `a33c40eab42cced0`, retrieved 2026-10-09, 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/irlr7843tr-datasheet.pdf)