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CT817C

Public Made by Adom

by adom

CT Micro International Transistor, Photovoltaic Output Optoisolators, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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CT817C

CT Micro International · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm

CT817C from CT Micro International, 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 Anode of the GaAs infrared emitting diode; the input forward current IF is rated at 60 mA maximum, with typical VF of 1.24 V at IF=10 mA.
2 Cathode passive Cathode of the infrared emitting diode; the reverse voltage VR is rated at 6 V maximum.
3 Emitter passive Phototransistor emitter; the emitter-collector breakdown voltage BVECO is 6 V minimum.
4 Collector passive Phototransistor collector; BVCEO is 35 V minimum and the collector current IC is rated at 50 mA maximum.

Key specifications

Parameter Value
Manufacturer CT Micro International
Package SOP-4-2.54mm
Category Optoisolators
Pins 4

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts Copper H = Lead frame option (H: Iron, None: Copper) 11

CAD (KiCad official)

  • Symbol: CT817C
  • Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
  • 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
  • 3D model files: ct817c-etched.step / ct817c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ct817c.step / ct817c.glb are the bare package body.

Provenance

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

  • Datasheet: CT Micro International datasheet (17 pp, sha256 57e8e519edb066d3, retrieved 2026-10-26, 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