component

CSL1901DW1

Public Made by Adom

by adom

ROHM Semicon LED Indication - Discrete, 0603. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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CSL1901DW1

ROHM Semicon · LED Indication - Discrete · 0603

CSL1901DW1 from ROHM Semicon, 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 electrode, marked by the cathode index on the left side of the bottom view in Figure 1; reverse voltage limit VR is 5V.
2 A passive Anode electrode on the right side of the bottom view in Figure 1; forward current IF is 20mA max (100mA peak at duty 1/10, 1kHz), and VF is 1.7 to 2.2V (1.8V typ) at IF=2mA.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
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 Current IF 20 mA Ta=25℃ 1
Peak Forward Current IFP 100 mA Ta=25℃ 1
Reverse Voltage VR 5 V Ta=25℃ 1
Power Dissipation PD 44 mW Ta=25℃ 1
Operation Temperature Topr -40 85 ℃ 1
Storage Temperature Tstg -40 100 ℃ 1
Forward Voltage VF 1.7 1.8 2.2 V IF=2mA 1
Luminous Intensity IV 6.3 9.4 25 mcd IF=2mA 1
Reverse Current IR 10 μA VR=5V 1
Dominant Wave Length λD 602 605 608 nm IF=2mA 1
Thermal Resistance (Junction/Solder Point) Rθj-s 410 ℃/W Evaluation board: glass epoxy FR4 30x10mm, t=0.8mm; Cu pad 4.0x4.0mm (cathode), t=0.035mm 14
Thermal Resistance (Junction/Ambient) Rθj-a 650 ℃/W Evaluation board: glass epoxy FR4 30x10mm, t=0.8mm; Cu pad 4.0x4.0mm (cathode), t=0.035mm 14
Junction Temperature TjMax 100 ℃ 14

CAD (KiCad official)

  • Symbol: CSL1901DW1
  • Footprint: LED_SMD:LED_0603_1608Metric
  • 3D model: 0603 (KiCad packages3D, STEP)
  • 3D model files: csl1901dw1-etched.step / csl1901dw1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); csl1901dw1.step / csl1901dw1.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (18 pp, sha256 fde61fa97af29f8f, retrieved 2026-10-18, 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