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Contents

README

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LTST-C191TBKT-5A

Lite On · LED Indication - Discrete · 0603

LTST-C191TBKT-5A 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.

Pinout

Pin Name Type Function
1 K passive Cathode (-) terminal marked CATHODE on the package drawing (the notched, T-shaped pad); reverse voltage is for the IR test only (VR = 5 V) and the device is not designed for reverse operation.
2 A passive Anode (+) terminal of the InGaN blue LED, the terminal not marked CATHODE; continuous forward current 20 mA max, VF 2.8 V typ and 3.05 V max at IF = 5 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 11.2 15 mcd IF = 5mA 5
Dominant Wavelength λd 470 475 nm IF = 5mA 5
Forward Voltage VF 2.8 3.05 V IF = 5mA 5
Reverse Current IR 100 μA VR = 5V 5
Power Dissipation 120 mW 3
Peak Forward Current 100 mA 1/10 Duty Cycle, 0.1ms Pulse Width 3
Continuous Forward Current 20 mA 3
Operating Temperature Range -20 80 °C 3
Storage Temperature Range -30 100 °C 3
Infrared Soldering Condition 260 °C For 5 Seconds 3

CAD (KiCad official)

  • Symbol: LTST-C191TBKT-5A
  • Footprint: LED_SMD:LED_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: ltst-c191tbkt-5a-etched.step / ltst-c191tbkt-5a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltst-c191tbkt-5a.step / ltst-c191tbkt-5a.glb are the bare package body.

Provenance

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

  • Datasheet: Lite On datasheet (13 pp, sha256 b7f77edd1699fbd0, retrieved 2026-10-19, 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