The PS2705A-1 is an optically coupled isolator containing a GaAs light emitting diode and an NPN silicon phototransistor to realize an excellent cost performance. This package is SOP (Small Outline Package) type and has shield effect to cut off ambient light. It is designed for high density mounting applications.


  • AC input response
  • High isolation voltage (BV = 3 750 Vr.m.s.)
  • SOP (Small Outline Package) type
  • Ordering number of taping product: PS2705A-1-F3: 3 500 pcs/reel
  • Pb-Free product
  • Safety standards UL approved: UL1577, Single protection CSA approved: CAN/CSA-C22.2 No. 62368-1, Basic/Supplementary insulation SEMKO approved: EN 62368-1, IEC 62368-1, Basic/Supplementary insulation NEMKO approved: EN 62368-1, Basic/Supplementary insulation FIMKO approved: EN 62368-1, Basic/Supplementary insulation DEMKO approved: EN 62368-1, Basic/Supplementary insulation VDE approved: DIN EN 60747-5-5 (Option)

Product Options

Part Number Part Status Carrier Type PLP Buy Sample
Active 2024 Jul
Active 2024 Jul

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
PS2705A-1 Data Sheet Datasheet PDF 5.15 MB
Application Notes & White Papers
PS2500-Series Application Note 日本語 Application Note PDF 466 KB
Photocouplers Applications Note Application Note PDF 957 KB
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB
Photocouplers Brochure 日本語 Brochure PDF 4.39 MB
Photocouplers Selection Guide 日本語 Brochure PDF 4.34 MB