Vishay, SFH6106-4 DC Input Phototransistor Output Optocoupler, Surface Mount, 4-Pin SMD

The SFH610A and SFH6106 feature a high current transfer ratio, low coupling capacitance and high isolation voltage. These couplers have a GaAs infrared diode emitter, which is optically coupled to a silicon planar phototransistor detector, and is incorporated in a plastic DIP-4 or SMD Package. The coupling devices are designed for signal transmission between two electrically separated circuits. The couplers are end-stackable with 2.54 mm spacing. Creepage and clearance distances of > 8.0 mm are achieved with option 6 and option 8.

Good CTR linearity depending on forward current
Isolation test voltage, 5300 VRMS
High collector emitter voltage, VCEO = 70 V