I am trying to find random flashing surface mount LEDs - do they exist? 9volt or less would be great and 5mm x 2mm would be perfect - give or take a few mm is ok.

 

Only random flashing LED I know of is the flickering candle, 5mm. Gives a random PWM signal from current limiting resistor. Sorry, not SM.

 

The SMD would just have to blink not flicker. It must exist...

 

I think Bill_M made a circuit for that some time ago. The thread should still be on the forum.

 

To clarify...There would be no external driver circuit to make the LEDs blink, the circuit is within the LED. I know there are through hole LEDs that have self contained blinking circuit, I'm looking for the SMD version.

 

To clarify...There would be no external driver circuit to make the LEDs blink, the circuit is within the LED. I know there are through hole LEDs that have self contained blinking circuit, I'm looking for the SMD version.

You may be corrrect, but all the LED's with built-in flashing circuits that I have seen are not random; they blink at a very steady uniform rate.

 

You may be corrrect, but all the LED's with built-in flashing circuits that I have seen are not random; they blink at a very steady uniform rate.

Steady or random flashing, it really doesn't matter - just has to be surface mount. I don't think what I am looking for exists.

 

http://parts.digikey.com/1/parts-kws/flashing-smd-leds

 

http://parts.digikey.com/1/parts-kws/flashing-smd-leds

I came across that one actually...

I'm looking for something like this though:

 

I'm 99% sure they don't exist in the form I am looking for. Thanks guys anyway.