# LTST-C190TBKT

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

LTST-C190TBKT 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-c190tbkt/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (-) soldering terminal, marked CATHODE on the package drawing; reverse voltage is not rated and the device is not designed for reverse operation (IR 10 uA max at VR = 5V test only). |
| 2 | A | passive | Anode (+) soldering terminal of the InGaN blue LED, polarity shown by the diode symbol; DC forward current 20 mA max, forward voltage 2.80 to 3.80 V at IF = 20mA. |

## 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 | 28 |  | 180 | mcd | IF = 20mA | 5 |
| Dominant Wavelength | λd | 465 |  | 475 | nm | IF = 20mA | 5 |
| Forward Voltage | VF | 2.8 |  | 3.8 | V | IF = 20mA | 5 |
| Power Dissipation |  |  |  | 76 | mW | At Ta=25℃ | 3 |
| Peak Forward Current |  |  |  | 100 | mA | At Ta=25℃; 1/10 Duty Cycle, 0.1ms Pulse Width | 3 |
| DC Forward Current |  |  |  | 20 | mA | At Ta=25℃ | 3 |
| Operating Temperature Range |  | -20 |  | 80 | °C | At Ta=25℃ | 3 |
| Storage Temperature Range |  | -30 |  | 100 | °C | At Ta=25℃ | 3 |
| Infrared Soldering Condition |  |  |  | 260 | °C | For 10 Seconds | 3 |

## CAD (KiCad official)

- Symbol: `LTST-C190TBKT`
- Footprint: `LED_SMD:LED_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `ltst-c190tbkt-etched.step` / `ltst-c190tbkt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ltst-c190tbkt.step` / `ltst-c190tbkt.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/8588899225996705792) (13 pp, sha256 `1ecefaf1eb1bfc8d`, 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-c190tbkt-datasheet.pdf)