# LTST-C191KGKT

**Lite On** · LED Indication - Discrete · 0603

LTST-C191KGKT from Lite On, in a 0603. 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.


::adom-states{src="/adom/ltst-c191kgkt/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode terminal, marked CATHODE on the package drawing (the notched terminal); the negative side of the LED symbol, with a 5 V maximum reverse voltage. |
| 2 | A | passive | Anode terminal, the positive (+) side of the LED, driven through a series current-limiting resistor with 30 mA maximum DC forward current and typical VF of 1.9 to 2.4 V at 20 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Lite On |
| Package | 0603 |
| Category | Optoelectronics |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `LTST-C191KGKT`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `ltst-c191kgkt-etched.step` / `ltst-c191kgkt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltst-c191kgkt.step` / `ltst-c191kgkt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Lite On datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588899225987371008) (12 pp, sha256 `09332836b0b9c501`, retrieved 2026-10-07, 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/ltst-c191kgkt-datasheet.pdf)