Electronic component identification
Electronic component identification
(OP)
Hi,
I have come across a faulty component that needs to be replaced but I can't identify what it is and thus where I can buy it from. It is disc shaped with 2 pins and on top it writes 'K391 J8'. Any help is appreciated.
I have come across a faulty component that needs to be replaced but I can't identify what it is and thus where I can buy it from. It is disc shaped with 2 pins and on top it writes 'K391 J8'. Any help is appreciated.
RE: Electronic component identification
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Electronic component identification
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If we learn from our mistakes I'm getting a great education!
RE: Electronic component identification
Otherwise it would be quite a hunk of ceramic!
Always gotta watch those uF, nF and pF Keith! I know what you meant to type!
RE: Electronic component identification
RE: Electronic component identification
I rarely use any ceramics less than 0.01microfarads so I guess it's just finger muscle memory.
I would agree a 390pF cap is probably one of the most reliable components you'll ever come across.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Electronic component identification
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Electronic component identification
Normally I would agree with you on the 5% thing, but the fact that the J is combined with an 8 makes me wonder if it's not a different type of code rather than tolerance. If the component isn't a cap, that would be likely...
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Electronic component identification
The 'K' could be a 10% tolerance code too, but it is in a strange place. I wonder if we'll get a photo of this mystery component?
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If we learn from our mistakes I'm getting a great education!
RE: Electronic component identification
http://wiki.xtronics.com/index.php/Capacitor_codes
RE: Electronic component identification
RE: Electronic component identification
RE: Electronic component identification
How large is it and what color? A 390pF ceramic would probably be quite small.
RE: Electronic component identification
That is 390 VDC, VDR( voltage dependent resistor)in case of defective it must indicate short circuit, if its tested with multimeter as a resistor
RE: Electronic component identification
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If we learn from our mistakes I'm getting a great education!
RE: Electronic component identification