# GR1810-2

**GR** · LED Drivers · SOT-23

GR1810-2 from GR, in a SOT-23. 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 | NC | unconnected | No connection. Leave floating; not internally bonded. |
| 2 | OUT | output | LED constant-current output (sink). Regulates to 18mA typical (17.46-18.54mA) once VOUT exceeds ~2.5V; recommended operating VOUT around 3V, absolute max 24V. Connect in series with the LED string return path to GND. |
| 3 | GND | power_in | Power/signal ground reference for the internal current source. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | SOT-23 |
| Category | LED-drv |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `GR1810-2`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `gr1810-2-etched.step` / `gr1810-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gr1810-2.step` / `gr1810-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GR datasheet](docs/gr1810-2-datasheet.pdf) (5 pp, sha256 `e866c72cbf4332a2`, retrieved 2026-08-17, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/gr1810-2-datasheet.pdf)