SFH691AT product information
Optocoupler, Phototransistor Output, SOP-4, AC Input, Mini-Flat Package
The SFH691AT has a GaAs infrared emitting diode emitter, which is optically coupled to silicon planar phototransistor detector, and is incorporated in a 4 pin 100 mil lead pitch miniflat package. It features a high current transfer ratio, low...
The coupling devices are designed for signal transmission between two electrically separated circuits.
SOP (small outline package)