# LTST-C190TGKT

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

LTST-C190TGKT 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-c190tgkt/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (-) terminal of the InGaN green LED, identified by the cathode mark on the package; reverse current is 10 µA max at VR = 5 V. |
| 2 | A | passive | Anode (+) terminal of the InGaN green LED; the polarity symbol marks it as the positive side, and a series current-limiting resistor is recommended with DC forward current limited to 20 mA. |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Luminous Intensity | IV | 71 |  | 450 | mcd | IF = 20mA; Note 1 | 5 |
| Forward Voltage | VF | 2.8 | 3.2 | 3.6 | V | IF = 20mA | 5 |
| Power Dissipation |  |  |  | 76 | mW | Ta=25°C | 3 |
| Peak Forward Current |  |  |  | 100 | mA | 1/10 Duty Cycle, 0.1ms Pulse Width | 3 |
| DC Forward Current |  |  |  | 20 | mA | Ta=25°C | 3 |
| Operating Temperature Range |  | -20 |  | 80 | °C |  | 3 |
| Storage Temperature Range |  | -30 |  | 100 | °C |  | 3 |
| Infrared Soldering Condition |  |  |  | 260 | °C | For 5 seconds | 3 |
| Forward Voltage bin tolerance | VF | -0.1 |  | 0.1 | V | Per forward-voltage bin @20mA | 6 |
| Luminous Intensity bin tolerance | IV | -15 |  | 15 | % | Per intensity bin @20mA | 6 |
| Dominant Wavelength bin tolerance | λd | -1 |  | 1 | nm | Per dominant-wavelength bin @20mA | 6 |
| Forward Voltage ESD check threshold (good LED) | VF | 2 |  |  | V | @0.1mA, InGaN product | 11 |
| Reflow peak temperature (recommended) |  |  |  | 270 | °C | Reflow soldering; soldering time 10 sec max | 10 |
| Soldering iron temperature (recommended) |  |  |  | 300 | °C | Soldering iron; 3 sec max, one time only | 10 |

## CAD (KiCad official)

- Symbol: `LTST-C190TGKT`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `ltst-c190tgkt-etched.step` / `ltst-c190tgkt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltst-c190tgkt.step` / `ltst-c190tgkt.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/8755888875271675904) (12 pp, sha256 `b5bb94c59d6f7da2`, retrieved 2026-10-17, 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-c190tgkt-datasheet.pdf)