20Pcs VO615A-6X001 DIP-4 Transistor Output Optocouplers Optocuopler DIP4

20Pcs VO615A-6X017T SMD-DIP-4 Transistor Output Optocouplers Optocoupler SMD4

20Pcs LTV-354T SMD-4 Transistor Output Optocouplers Optocoupler Phototrans

15Pcs TCMT1107 SOP-4 Transistor Output Optocouplers Phototransistor Out

9Pcs HMHA2801V SMD-4 Transistor Output Optocouplers Optocoupler Phototransistor

17Pcs LTV-817S-TA PDIP-4 Gull Wing Transistor Output Optocouplers Optocoupler

10Pcs SFH615A-3 DIP-4 Transistor Output Optocouplers RECOMMENDED ALT 78-VO615A-3