Broadcom HCPL-2730-000E Darlington Transistor-Output Optocoupler DIP 8 Type (misc.) 100 kBd, 2-channel

The main task of an optocoupler in electronic devices is the electrical separation and the interference suppression of the signal. This is necessary in a large number of applications, ranging from power supply and motor control to data communication and data processing. Optocouplers eliminate all kinds of electromagnetic interferences. One achieves a secure signal separation.

Price: 4.29 from Conrad Electronic