The PS2561F-1 is an optically coupled isolator containing a GaAs light emitting diode and an NPN silicon phototransistor. The PS2561F-1 is in a plastic DIP (Dual In-line Package) and the PS2561FL-1 is lead bending type (Gull-wing) for surface mount.


  • Operating ambient temperature: 110°C
  • High Isolation voltage (BV = 5 000 Vr.m.s.)
  • High collector to emitter voltage (VCEO = 80 V)
  • High current transfer ratio (CTR = 450% TYP.)
  • High-speed switching (tr = 5 μs TYP., tf = 7 μs TYP.)
  • Embossed tape product: PS2561FL-1-F3 : 2 000 pcs/reel
  • Pb-Free product
  • Safety standard UL approved: No. E72422

Product Options

Orderable Part ID Part Status Type Carrier Type Buy Sample

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
PS2561F-1,PS2561FL-1 Datasheet 日本語 Datasheet PDF 243 KB
Application Notes & White Papers
PS2500-Series Application Note Application Note PDF 466 KB
Photocouplers Applications Note Application Note PDF 957 KB
Photocouplers Brochure 日本語 Brochure PDF 3.16 MB
Photocouplers Selction Guide 日本語 Brochure PDF 4.34 MB
PHOTOCOUPLERS Catalog Brochure PDF 9.83 MB