Name that part - Electronic Circuits Projects Diagrams Free

Sceadwian · 27th February 2007, 08:12 PM

I've seen these before, but I can't remember what they are. Can anyone name the part and explain the markings? I think it's a transient suppression type device?

**Nigel Goodwin** · 27th February 2007, 08:18 PM

It's called a 'capacitor', it's rated at 0.015uF 400V - was this a serious question?, I didn't see a smiley anywhere?.

Sceadwian · 27th February 2007, 09:32 PM

I use a very limited set of components Nigel, I've never seen a capacitor like this before. I study electronics as a hobby in my spare time, and my experience is limited and has a lot of odd branches because I never went to college or a trade school neither have I done this for a living or for very long.

I've seen parts like this on boards I've taken apart for other bits but it never connected in my mind as it being a capacitor because I was takeing the board apart for different reasons and I've never had need for a capacitor over 50 volts or so. The familiarity with the part was probably because I recognized the markings as something I'd read a ways back on capacitor markings but it didn't click. I'm assuming the K is a precision marking. The Squared M is the makers mark. Does the 'W: signify anything?

**Nigel Goodwin** · 27th February 2007, 09:41 PM

There have been a number of threads about capacitor markings on these forums - K is the tolerance (+/-10%) - I don't know about the rest.

spuffock · 27th February 2007, 10:51 PM

I hope nobody saw me trying to measure the capacitance of something that proved to be a lentil............................................ ...

Sceadwian · 28th February 2007, 12:27 AM

I feel better now. But the question remains, what was the capacitance of the lentil? =)

hjames · 28th February 2007, 10:01 AM

It's a mylar one, isn't it? RadioShack used to sell ones like this.

Electronics goldmine is selling some surplus ones as we speak...
http://www.goldmine-elec.com/pdf/243_pgs22-29.pdf

Roff · 28th February 2007, 04:30 PM

Quote:

Originally Posted by spuffock

I hope nobody saw me trying to measure the capacitance of something that proved to be a lentil............................................ ...

LOL! Snort!!!

Did the short leads give you any trouble, or did you just assume it was a surface mount part?

spuffock · 1st March 2007, 01:44 PM

I was poking about at a laptop motherboard that had seen some water with the power still on. A couple of other bits had corroded off, and there was this lentil, sort of blackened....
It didn't take long to realise what it was, but just for a couple of seconds...

Hero999 · 2nd March 2007, 11:11 PM

I've seen this sort of capacitor before; this first time was in a bag of 100 assorted ceramic disc capacitors I bought from Tandy when I was about 12.

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27th February 2007, 08:18 PM	(permalink)
Nigel Goodwin	It's called a 'capacitor', it's rated at 0.015uF 400V - was this a serious question?, I didn't see a smiley anywhere?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

27th February 2007, 09:32 PM	(permalink)
Sceadwian	I use a very limited set of components Nigel, I've never seen a capacitor like this before. I study electronics as a hobby in my spare time, and my experience is limited and has a lot of odd branches because I never went to college or a trade school neither have I done this for a living or for very long. I've seen parts like this on boards I've taken apart for other bits but it never connected in my mind as it being a capacitor because I was takeing the board apart for different reasons and I've never had need for a capacitor over 50 volts or so. The familiarity with the part was probably because I recognized the markings as something I'd read a ways back on capacitor markings but it didn't click. I'm assuming the K is a precision marking. The Squared M is the makers mark. Does the 'W: signify anything? __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

27th February 2007, 09:41 PM	(permalink)
Nigel Goodwin	There have been a number of threads about capacitor markings on these forums - K is the tolerance (+/-10%) - I don't know about the rest. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

27th February 2007, 10:51 PM	(permalink)
spuffock	I hope nobody saw me trying to measure the capacitance of something that proved to be a lentil............................................ ...

28th February 2007, 12:27 AM	(permalink)
Sceadwian	I feel better now. But the question remains, what was the capacitance of the lentil? =) __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

28th February 2007, 10:01 AM	(permalink)
hjames	It's a mylar one, isn't it? RadioShack used to sell ones like this. Electronics goldmine is selling some surplus ones as we speak... http://www.goldmine-elec.com/pdf/243_pgs22-29.pdf

1st March 2007, 01:44 PM	(permalink)
spuffock	I was poking about at a laptop motherboard that had seen some water with the power still on. A couple of other bits had corroded off, and there was this lentil, sort of blackened.... It didn't take long to realise what it was, but just for a couple of seconds...

2nd March 2007, 11:11 PM	(permalink)
Hero999	I've seen this sort of capacitor before; this first time was in a bag of 100 assorted ceramic disc capacitors I bought from Tandy when I was about 12. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.