here's a cross section of a BLOWN LED. why is it so clean? IT CROSS-SECTIONED ITSELF. i have video proof to follow!pic.twitter.com/ijsz6bMQfa
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annotated version of the LED that failed and cross sectioned itself.pic.twitter.com/b9Sk7HuZED
what's REALLY fascinating is to try and figure out the failure process: 1. LED die continues to light, but the current is quite high and it heats up 2. the bond wire heats up and glows (you can see the light shift downward in the video slightly)
3. pressure builds up inside, the softened plastic starts to bulge out of the bottom 4. catastrophic failure! the plastic shears along lines of stress created when the plastic was originally molded.
Any idea how much current was involved?
a bit over an amp.
Distributor accidentally shipped you a sound-emitting diode instead of a light-emitting diode. Just return it for an exchange.
"I got the LED, the LED that go BOOM"
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