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Topic: what is a MER 684J250V? (Read 152 times) previous topic - next topic


Nov 08, 2015, 09:50 pm Last Edit: Nov 16, 2015, 02:48 pm by arduinofreaklol
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!!!




Google leads me to believe that it is a O.68uf 250V metalized film capacitor.


Nov 08, 2015, 10:00 pm Last Edit: Nov 08, 2015, 10:01 pm by DrAzzy
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
ATtiny core for 841+1634+828 and x4/x5/x61/x7/x8 series Board Manager:
ATtiny 841/1634/828/88/861/167 breakouts, mosfets, touch sensors and prototyping board in my store http://tindie.com/stores/DrAzzy


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
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]


You have 4 threads with subjects requesting urgency. None of them are really urgent.

Many members ignore this type of request. Rightly so.



thanks guys and sorry for being disrespectful :/


Please change the heading of this disrespectful post. It's unnecessary 'noise'!

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