Optek, OPI 1264B DC Input Transistor Output Optocoupler, Through Hole, 4-Pin
Optek DC Input Transistor Output Optocoupler, Through Hole, 4-Pin, Maximum Forward Voltage: 1.6V, Maximum Input Current: 40 mA, Isolation Voltage: 10 kV dc, Minimum Current Transfer Ratio: 50 %, MPN: OPI 1264B.