5PCS TLP521-2 DIP-8 Optoisolators Transistor Output TOSHIBA

TLP521-2 Original New Toshiba 2 Ch Transistor Output Optocoupler 8 Pin DIP8

5pcs 6N137 DIP8 DIP-8 Optoisolators Transistor Output

10PCS DIP-6 MOC3020 Optoisolators Transistor Output FAIRCHILD

10PCS FAIRCHILD MOC3023 Optoisolators Transistor Output DIP-6 AL

10PCS original DIP-6 MOC3081 Optoisolators Transistor Output FAIRCHILD

10PCS NEW original DIP-8 6N137 Optoisolators Transistor Output EL

2pcs 6N137 DIP8 DIP-8 Optoisolators Transistor Output