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Hi, I would sincerely appreciate if someone can help me locate a smd / CHIP led in Package Size 0805 which is bi-directional / anti parallel / Basically, the package should have 2 ledS of the same color in anti parallel connection. So no matter how you connect the polarity of input 1 led will glow. My constraint (...)
Again, a regulated voltage supply and leds in parallel. Not the best way to do it. Also note that the leds used in that project were salvaged from an existing lamp where it is likely they were selected for matched Vf. If you get them from another source the chances are you will cook some while others don't get beyond a dim glow. Brian.
The smd 0603 leds shown in this link are suitable, scroll down the linked page for the specification.
I doubt that the "DONE" node will achieve a legal logic high level as it's shorted by a red led.
Hi, I have a 10 Watt smd led and I want to drive it from a 12volt lead acid rechargable battery, does anybody have a circuit please or an ebay link to a suitable driver. Thanks In Advance Rizzy
There are too many false assumptions in this thread. If repairability is key with high recycle value, then standards are essential. ZAGRA is one such standard. Single led repairs compromise quality or cost due to Blue-shift and LM70 aging mismatches. Cost of cooling is not always feasible by just spreading out the smd's. This is not sca
Hi, First sorry for my poor English. I want to simulate the WS2812B chip in Proteus but there is no available component or part related to this device in Proteus (neither WS2811 nor 5050 smd led). I read the datasheet of this device ( ) but unable to create the circuit to generate the similar wavefo
Hello, We are doing a 3 channel, surface mount Buck led driver (3x 165W) , which is 495W total. The room on the PCB for this is just 60mm x 70mm. So as to keep the components cool, we wish to use 4 oz copper?but will this mean that 0603 resistors will not be soldered properly? (there are 0603 resistors and caps near the PWM controller).
Hello all, I'm trying to find a simple solution to make a led ring with smd packages. DOes it exist a simple way like a Autodesk Inventor with circular sketch pattern. Does it exist the same placement function in Altium ? Thanks for your help
Have you something called "route offset" (or similar) in the settings? If not then add some copper to the pad so that the route comes into that, stopping before the pad perhaps?
Hello, I am trying to drive an 8x8 RGB Common Cathode led matrix. I am planning to use four 74HC595 shift registers. The problem is that I want to get the maximum brightness out of the leds but I do not know which IC to use between output of shift registers and leds. I am using 5050 smd RGB leds (...)
dear all I have two question 1. what happen if i will use 47uf16v elco. capacitor in place of 47uf10v ,Is it effect remote battery life? 2. Is dual color smd led's come in two pin Regards
How many led's per character?
HuanYu Future Technologies Co., Ltd is one of the China leading metal core pcb Manufacturing Enterprises. We can produce high-power led kinds of high thermal conductivity aluminum Core pcb ,copper Core pcb and smd One-stop shop service ,Current products manufactured include led Panel light pcb,led Light bulbs (...)
what is the led used inside an led tube light.. and what the watt........ Pls refer me some led... used in tube light.