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CYTLP185

Public Made by Adom

by adom

OCIC Optocouplers - Phototransistor Output, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CYTLP185

OCIC · Optocouplers - Phototransistor Output · SOP-4-2.54mm

CYTLP185 from OCIC, in a SOP-4-2.54mm. 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 Anode passive LED anode input; forward current IF max 50 mA (1 A pulsed), reverse voltage max 6 V.
2 Cathode passive LED cathode input, return for the forward current IF (max 50 mA).
3 Emitter passive Phototransistor emitter; VECO max 7 V.
4 Collector passive Phototransistor collector; VCEO max 80 V, IC max 50 mA.

Key specifications

Parameter Value
Manufacturer OCIC
Package SOP-4-2.54mm
Category Optocoupler/LED/Digital Tube/Photoelectric Device
Pins 4

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 VF 1.2 1.4 V IF=20mA 2
Reverse current IR 10 µA VR=5V 2
Input capacitance Cin 30 250 pF V=0, f=1kHz 2
Collector dark current ICEO 100 nA VCE=70V 2
Collector-emitter breakdown voltage BVCEO 80 V IC=0.1mA, IF=0 2
Emitter-collector breakdown voltage BVECO 7 V IE=0.1mA, IF=0 2
Current transfer ratio (blank grade) CTR 50 400 % IF=5mA, VCE=5V 2
Collector-emitter saturation voltage VCE(sat) 0.1 0.2 V IF=20mA, IC=1mA 2
Isolation capacitance Cf 0.6 1 pF V=0, f=1MHz 2
Rise time Tr 3 18 µs VCE=10V, IC=2mA, RL=100Ω 2
Fall time Tf 4 18 µs 2
Forward current IF 50 mA Ta=25C 1
Peak forward current IFP 1 A Ta=25C 1
Reverse voltage VR 6 V Ta=25C 1
Input power dissipation P 70 mW Ta=25C 1
Input junction temperature Tj 125 °C Ta=25C 1
Collector power dissipation PC 150 mW Ta=25C 1
Collector current IC 50 mA Ta=25C 1
Collector-emitter voltage VCEO 80 V Ta=25C 1
Emitter-collector voltage VECO 7 V Ta=25C 1
Output junction temperature Tj 125 °C Ta=25C 1
Total power dissipation Ptot 200 mW Ta=25C 1
Isolation voltage Viso 3750 Vrms Ta=25C 1
Operating temperature Topr -55 110 °C Ta=25C 1
Storage temperature Tstg -55 125 °C Ta=25C 1
Soldering temperature Tsol 260 °C 10s 1

CAD (KiCad official)

  • Symbol: CYTLP185
  • Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
  • 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
  • 3D model files: cytlp185-etched.step / cytlp185-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cytlp185.step / cytlp185.glb are the bare package body.

Provenance

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

  • Datasheet: OCIC datasheet (7 pp, sha256 aca6cbbc45051bc8, retrieved 2026-10-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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