Electronics Forum | Fri Jan 25 10:15:56 EST 2019 | babe7362000
Does anyone know what Led is used on the Yestech B2 light boards. I need to replace them and can not find a board, so I need to replace the LEDS. Or is it something else causing the leds to not go any brighter?
Electronics Forum | Tue Aug 02 18:38:14 EDT 2022 | klauss
when i use only one nozzle to mounting 3535 cree power leds, it works good but when i use 2 or more nozzles, leds are getting rotated or upturned just after the nozzle relaese the led. it's like nozzle throws the led not mounts. But not all the led
Electronics Forum | Fri Dec 08 16:54:42 EST 2006 | flipit
My experience with SMT LED packages is that certain LED package styles tend to float. This floating is caused because the LED is often only terminated on the bottom side of the LED package. Sometimes the LEDs are terminated like a SMT resistor with
Electronics Forum | Fri Sep 12 18:19:59 EDT 2008 | davef
Questions are: * Why aren't the defective LED blinking? * Do the defective LED blink when removed from the board and tested according to the functional test that you used prior to assembling the boards? * Do the defective LED blink after the solder i
Electronics Forum | Tue Mar 30 17:52:15 EDT 2010 | cusackmusic
They are very finiky. If you have good solder paste, and a slight down pressure, to make sure the LED is "stuck" to the board, you should be able to place it. Pick it up on the center of the flat, NOT the lens. Even with the vacuum turned off, t
Electronics Forum | Tue Aug 01 09:27:13 EDT 2017 | tmennink
Hi all, We are having a lot of trouble with mis-pick trying to place silicone dome LEDs(3535 package) It seems that the silicone of the LEDs is sticking to the side wall of the carrier tape pocket. The vacuum nozzle would normally suck up the led an
Electronics Forum | Thu Aug 03 20:51:27 EDT 2017 | OrHorti
I did a test where the leds were put into a 95% humidity at 60 degC environment for an hour, and after that almost all leds would stick into the carrier tape. So, moisture might certainly play a major role in the stickiness of the leds. We placed al
Electronics Forum | Wed Sep 20 19:43:35 EDT 2000 | David Harper
We have the very same problem.. In our next job our assemblers will be placing 2 million PTH LEDs. Fortunately we get all out LED's from the same manufacturer and hope they come in bags. If not we gotta cut them off the tape.. and well... that just m
Electronics Forum | Wed Sep 20 19:44:04 EDT 2000 | David Harper
We have the very same problem.. In our next job our assemblers will be placing 2 million PTH LEDs. Fortunately we get all out LED's from the same manufacturer and hope they come in bags. If not we gotta cut them off the tape.. and well... that just m
Electronics Forum | Wed Sep 20 19:46:31 EDT 2000 | David Harper
We have the very same problem.. In our next job our assemblers will be placing 2 million PTH LEDs. Fortunately we get all out LED's from the same manufacturer and hope they come in bags. If not we gotta cut them off the tape.. and well... that just m
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