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Contents

README

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LTW-C191DS5

Lite On · LED Indication - Discrete · 0603

LTW-C191DS5 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 with the cathode dot on the package drawing; the rated reverse voltage is 5 V and DC forward current is 20 mA max.
2 A passive Anode terminal (+), the opposite soldering terminal from the cathode mark; forward voltage is 2.70 to 3.15 V 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
Forward Voltage (bin A/B/C range at IF = 5mA) VF 2.7 3.15 V IF = 5mA 4
Luminous Intensity (bin Q/R range at IF = 5mA) IV 71 180 mcd IF = 5mA 4
Reverse Current IR 10 μA VR = 5V 4
Viewing Angle 2θ1/2 130 deg Fig.6 4
Forward Voltage bin tolerance VF -0.1 0.1 V Per VF bin 6
Luminous Intensity bin tolerance IV -15 15 % Per IV bin 6
Chromaticity bin tolerance x, y -0.01 0.01 Per hue (x, y) bin 6
Power Dissipation 72 mW 3
Peak Forward Current 100 mA 1/10 Duty Cycle, 0.1ms Pulse Width 3
DC Forward Current 20 mA 3
Reverse Voltage 5 V 3
Operating Temperature Range -30 85 °C 3
Storage Temperature Range -55 105 °C 3
Infrared Soldering Condition 260 °C For 10 Seconds 3
Reflow pre-heat temperature 150 200 °C Reflow soldering pre-heat 9
Reflow pre-heat time 120 sec. Reflow soldering pre-heat 9
Reflow peak temperature 260 °C Reflow soldering 9
Reflow soldering time 10 sec. Reflow soldering; max two times 9
Soldering iron temperature 300 °C Soldering iron; one time only 9
Soldering iron time 3 sec. Soldering iron; one time only 9

CAD (KiCad official)

  • Symbol: LTW-C191DS5
  • Footprint: LED_SMD:LED_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: ltw-c191ds5-etched.step / ltw-c191ds5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltw-c191ds5.step / ltw-c191ds5.glb are the bare package body.

Provenance

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

  • Datasheet: Lite On datasheet (12 pp, sha256 4e7d9bc26e716452, 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