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the good old 850 nm SFH4715AS

A project log for overdriving LEDs, for the bees

overpowering daylight, to chase bees and hornets with a drone

deepsoicDeepSOIC 10/28/2025 at 13:190 Comments

SFH4715AS has been serving us well for about two years already.

It has a rated peak current of 3 A, but we've been using it at 5-6 A with no problems.

Back then, did a test on how much pulse current it can actually survive. I don't have much records on how it was done, apart from that the pulses were 45 us long, that the led failed at 12 A, and it has lasted for minutes before giving up.

And a photo of the blown led:

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