On Fri, Feb 26, 2010 at 4:33 PM, Vitaliy wrote: > I've been looking on Digikey, and the cheapest ones I could find cost more > than 40 cents in quantity. Can somebody suggest a part number, or some other > search term I should try? > > Best regards, > > Vitaliy Maksimov > ScanTool.net, LLC > +1 623 582-2366 > http://www.scantool.net > > -- Many optocouplers will probably be too slow for this application but since I don't know your baud rate I can't say. Avago Tech. has the "best" digital opto buffers. If you really need high quantities you should always ask the mfg. reps for prices and not Digikey. I just saw a 4N35 variant for $.19 in thousands, but it's almost certainly too slow for you. -- Martin K. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist