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20x long open can diode- 9volt battery

zxn474l

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I already know that a driver cicuit is desired to be used to protect the diode itself and provide a longer diode life span ,but can a 20x dvd red long open can diode survive being "straight wired" to a regular 9volt battery say a typical energizer battery using a simple momentary switch to cycle on and off for very short duty cycles say 5-10 seconds with 30 seconds off and very good heat sinking? Also what milliamperage would a 9volt send to the diode without a driver/regulater circuit and what kind of mw output do you think it would produce with a good nonreflective merideth glass lens? If you have ever tried this let me know how the diode did please and it's typical life span too. THANKS!
 

dr-ebert

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The 9V block batteries generally cannot deliver very much current, so it might just work. The clever way to test this would be to hook up the LD, a ~20 Ohm pot, and a multimeter on a 2A (or higher) setting in series with the diode, with the pot initially at max resistance. Then slowly turn it down and see what happens to the current.

Operating a LOC directly off a CR123A battery should work (and result in ~300mA).
 




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