MJLorton Solar Power and Electronic Measurement Equipment Forum
General Category => General Discussion => Topic started by: cossy350 on November 11, 2015, 01:40:24 PM
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can anyone help me trying and find these these are little LED lights off a car switch these ones are green but I am looking for blue one's anyone know where I could find them and what they are called thank you and the size of them
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Hard to say without a scale to measure, but they are SMD leds, so measure the length and width and look for a SMD blue one of the same ( or similar, 0.2mm difference is close enough to solder still). Only issue you might have is that the forward voltage drop of a blue led is higher than the green ones, so they might not light at all if the original design had 4 green in series to make a voltage drop of around 9V, the same 4 blue will drop around 14V and may not light. Hard to say without seeing the back of the board.
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I hope this helps I take it taking a picture of the back and put a ruler next to the light
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Farnell prts...
http://ie.farnell.com/kingbright/kp-3216pbc-a/led-smd-1206-blue/dp/8529965
http://ie.farnell.com/rohm/sml012bctt86t/led-smd-1208-hb-blue/dp/1685043
as a starter for you.
Just what switch does that board come from.
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Hi it's a heated seat switch off a Ford Mondeo but this car has can bus wiring will they be ok and what did you say about the drain before will they work in it
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If you only want to change the edge lighting just replace the LED's and see if it still lights. Just get the replacement leds the right way round, probably best to use a CR2032 cell and a 1k series resistor to determine the polarity of them on the board before replacing them. Mark the polarity after each test on a printout of the board top.