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Electronics Forum / CAD / February 2008diode voltage
just a quick question, maybe a little bit offtopic (sorry): If a diode current is 15 microAmperes (forward), what is the voltage? I need an answer as close to 'real life' as possible. Its a silicone diode, 1N4148 or similar > just a quick question, maybe a little bit offtopic (sorry): > If a diode current is 15 microAmperes (forward), what is the voltage? > I need an answer as close to 'real life' as possible. > Its a silicone diode, 1N4148 or similar This varies alot by the part number. I'll show you how to fish... The datasheet for your part is here: http://www.diodes.com/datasheets/ds12019.pdf If you look under electrical characteristics at "Maximum Forward Voltage", you'll get a worst case. Scrolling down to page two, the first graph tells you exactly what you're after. Also, there are several differenct package types for this diode. Best to lookup the data sheet for the one you're planning on using. Chris >Its a silicone diode No, it's not. http://www.google.com/search?q=define:silicone http://www.google.com/search?q=define:silicon >If a diode current is 15 microAmperes (forward), what is the voltage? As has been said, to find the characteristics of a SPECIFIC part get the datasheet for THAT part. >I need an answer as close to 'real life' as possible. >[...]1N4148 or similar http://www.google.com/search?q=1N4148+datasheet+PDF If you are really looking for "close", a "similar" part will result in a *different* answer. > just a quick question, maybe a little bit offtopic (sorry): > If a diode current is 15 microAmperes (forward), what is the voltage? > I need an answer as close to 'real life' as possible. > Its a silicone diode, 1N4148 or similar It is temperature dependent. >> just a quick question, maybe a little bit offtopic (sorry): >> If a diode current is 15 microAmperes (forward), what is the voltage? >> I need an answer as close to 'real life' as possible. >> Its a silicone diode, 1N4148 or similar > > It is temperature dependent. Diodes are actually used as temperature sensors in some cases. Bob > just a quick question, maybe a little bit offtopic (sorry): > If a diode current is 15 microAmperes (forward), what is the voltage? > I need an answer as close to 'real life' as possible. > Its a silicone diode, 1N4148 or similar Look in the data book or measure it. Bob > just a quick question, maybe a little bit offtopic (sorry): > If a diode current is 15 microAmperes (forward), what is the voltage? > I need an answer as close to 'real life' as possible. > Its a silicone diode, 1N4148 or similar 1 voltmeters a resistor the diode and a power supply. Bob |
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