hi peeps!
arduinofreaklol here!
i took apart an old nightlight that didn't work and i found something peculiar:
a MER 684J250V
i took it off the nightlight's board and soldered some longer pins to it so that i could stick it into my bread board. The problem is: what is it and what is it used for???
plz answer this ASAP!!!
thx
arduinofreaklol
Google leads me to believe that it is a O.68uf 250V metalized film capacitor.
What does it look like? Google suggests it's capacitor from a chinese manufacturer, 0.68uf @ 250v....
Which, if it looks like a cap, is what you should have guessed 
684 = 0.68uf
250V = 250 volts
684 is like a resistor code, 68 followed by 4 zeroes, ie 680000, in pF, so 0.68uF.
J is the tolerance code, +/-5% according to google.
MER could be the manufacturer's code, perhaps this series: http://www.hitano.com.tw/productsInfo.aspx?id=2&key=5
You have 4 threads with subjects requesting urgency. None of them are really urgent.
Many members ignore this type of request. Rightly so.
Weedpharma
thanks guys and sorry for being disrespectful 
Please change the heading of this disrespectful post. It's unnecessary 'noise'!