Honeywell datasheets suck... The only relatively good picture is the schematic and the view on the left is from the top and the actual basing they show is from the bottom.
The polarity they show on the top corresponds to the + S for Vcc and + E for anode/Kathode. At least that is the way I am looking at it. Not sure why they used a K instead of C, but the + sign does follow the power for the sensor and the anode of the led (if you rotate the basing view 180 degrees). The forward voltage for the led will be 1.6 volts! What you may be seeing using the DVM is a minute voltage drop based on the reverse leakage current (won't be much). best regards, Steve Thatcher Electronics Engineer >> > The only discrepancy I see from the data pdf honeywell supplies, is >> > that the emitters forward voltage is shown as 1.6 volts. but I'm >> > showing about .8, as if it may be wired bass-ackwards. But the wired >> > polarity matches the data sheets + mark on top of the emitter tower. >> > Turning it around will of course need a new board made. I blew the >> > basing they show, way the hell up and printed it, but they don't show >> > polarity, just an A-K marking on the bottom view to the right if you >> > turn that scan to landscape. A scan of that is also there, as the >> > HAO2001-mechanical.png file above. >> > ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
