Vishay low input current optocoupler with a phototransistor output VO615A, VO617A, VO618A series protect equipment users from electrical shocks and protect the microprocessors within these systems from being damaged by voltage spikes.

VO617A and VO618A series provides up to 5300Vrms of voltage Isolation
VO615A series provides up to 5000Vrms of voltage Isolation
Applications include Isolation in AC adapters, switch mode power supplies, programmable logic controllers, Industrial controls, telecom systems, smart meters, office equipment, power on Internet and solar
Optocouplers VO615A, VO617A, VO618A have an operating temperature up to 110 degrees Celsius.

Optocouplers, Vishay Semiconductor