PS2506 - HIGH ISOLATION VOLTAGE AC INPUT, DARLINGTON TRANSISTOR TYPE MULTI PHOTOCOUPLER series In this document: PS2506-1, PS2506-2, PS2506-4, PS2506L-1, PS2506L-1-E3, PS2506L-1-E4, PS2506L-1-F3, PS2506L-1-F4, PS2506L-2, PS2506L-2-E3, PS2506L-2-E4, PS2506L-4