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The Vishay SFH6206 feature a high current transfer ratio, low coupling capacitance and high isolation voltage. These coupler have a GaAs infrared diode emitter, which is optically coupled to a silicon planar phototransistor detector, and is incorporated in a plastic SMD package. The coupling devices are designed for signal transmission between two electrically separated circuits.

Good CTR linearity depending on forward current
Low saturation voltage
Fast switching times
Low CTR degradation