component

CYTLP521-1

Public Made by Adom

by adom

OCIC Transistor, Photovoltaic Output Optoisolators, DIP-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentoptoisolatorscytlp521-1factory-2.0.0extractor-text
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 19d ago
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cytlp521-1-etched.glb cytlp521-1: factory component page (tier=lcsc) · Ray 19d ago
cytlp521-1-etched.step cytlp521-1: factory component page (tier=lcsc) · Ray 19d ago
cytlp521-1-hero.glb cytlp521-1: hero GLB from the etched model (keeps the MPN mark) · Ray 19d ago
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CYTLP521-1

OCIC · Transistor, Photovoltaic Output Optoisolators · DIP-4

CYTLP521-1 from OCIC, in a DIP-4. 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 of the input side; forward current IF max 50 mA, forward voltage 1.0-1.3 V at IF=10 mA.
2 Cathode passive LED cathode of the input side; reverse voltage VR max 6 V.
3 Emitter passive Phototransistor emitter of the output side; emitter-collector voltage VECO max 7 V.
4 Collector passive Phototransistor collector of the output side; VCEO max 80 V and collector current IC max 50 mA.

Key specifications

Parameter Value
Manufacturer OCIC
Package DIP-4
Category Optoisolators
Pins 4

CAD (KiCad official)

  • Symbol: CYTLP521-1
  • Footprint: Package_DIP:DIP-4_W7.62mm
  • 3D model: DIP-4 (KiCad packages3D, STEP)
  • 3D model files: cytlp521-1-etched.step / cytlp521-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cytlp521-1.step / cytlp521-1.glb are the bare package body.

Provenance

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

  • Datasheet: OCIC datasheet (9 pp, sha256 bf999cacdbf98f51, retrieved 2026-10-09, 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