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Ray Publish 0.1.0 1ec0b32 2d ago

LTV-355T

Lite On · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm

LTV-355T from Lite On, 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 on the input side; forward current IF is rated 50 mA max, with VF of 1.2 V typ and 1.4 V max at IF=20 mA.
2 Cathode passive LED cathode on the input side; reverse voltage VR is rated 6 V max.
3 Emitter passive Phototransistor emitter on the output side; emitter-collector voltage VECO is rated 6 V max.
4 Collector passive Phototransistor collector on the output side; collector-emitter voltage VCEO is rated 35 V max and collector current IC is rated 80 mA max.

Key specifications

Parameter Value
Manufacturer Lite On
Package SOP-4-2.54mm
Category Optoisolators
Pins 4

CAD (KiCad official)

  • Symbol: LTV-355T
  • Footprint: Package_SO:SOP-4_3.8x4.1mm_P2.54mm
  • 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)
  • 3D model files: ltv-355t-etched.step / ltv-355t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltv-355t.step / ltv-355t.glb are the bare package body.

Provenance

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

  • Datasheet: Lite On datasheet (8 pp, sha256 a3ad218ddf50696e, 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