What voltage is this cap?

Feb 02, 2008 26 Replies
J

Axial electrolytic approx 0.5 inch (12 mm) diam, 1.0 inch (25 mm) length



Markings: HGC CP-C 2J104K 123



Google tells me it's a 0.1uF, but I can't find a reference for the "2J" voltage rating. And, any idea what the other markings are?



There are no manufacturer markings (logo, etc.), just plain gray shrink tubing with the above alphanumeric markings.



This is used in a single-phase 240VAC low current box fan speed controller (1 TRIAC is the main current controller).



Any help would be greatly appreciated.



Thanks,


John English
Vote
Twitter Facebook LinkedIn
L

John E. wrote in news: snipped-for-privacy@news.sf.sbcglobal.net:

That's a damn small capacitance for that size, though I agree with it, so it implies a high voltage to match what you say. I first thought of 123 as meaning 12,000 millivolts, after the convention of 104 for capacitance, but I never heard of anyone actually doing it this way, and it's definitely not

12V.

Is the writing clear? Any chance that 123 is actually something else?

Vote
Twitter Facebook LinkedIn
D

It would have to withstand at least 240*1.41 =340V. I would suggest that it would be a minimum of 400V and possibly 500V.

Don Kelly dhky@shawcross.ca remove the X to answer ---------------------------- >
Vote
Twitter Facebook LinkedIn
J

.1 uf 1200 volt cap !

makes since to me.. most likely a snubber or bypass cap of some kind.

"I'd rather have a bottle in front of me than a frontal lobotomy" "Daily Thought: SOME PEOPLE ARE LIKE SLINKIES. NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS. http://webpages.charter.net/jamie_5"
Vote
Twitter Facebook LinkedIn
S

In the UK where 240V is the norm, 400V would be the normal rating for a motor start/run cap

Stuart Winsor From is valid but subject to change without notice if it gets spammed. For Barn dances and folk evenings in the Coventry and Warwickshire area See: http://www.barndance.org.uk
Vote
Twitter Facebook LinkedIn
B

Take a look here:

formatting link
it may help.

People. You can't live with 'em and it's illegal to hunt them...except in Texas. Highfields Amateur Radio Club: http://highfields-arc.co.uk
Vote
Twitter Facebook LinkedIn
F

On Sun, 03 Feb 2008 00:51:01 +0000 (GMT), Stuart put finger to keyboard and composed:

0.1uF seems much too small for a motor start/run cap. In any case, don't these caps have an AC rating rather than a DC rating?

- Franc Zabkar

Please remove one 'i' from my address when replying by email.
Vote
Twitter Facebook LinkedIn
C

No. It implies that it is a poly cap, not an electrolytic.

Vote
Twitter Facebook LinkedIn
A

Looking at manufacturer sites, 2J is a common voltage marking for 630V.

If there is a no_junk in my address, please REMOVE it before replying! All junk mail senders will be prosecuted to the fullest extent of the law!! http://home.att.net/~andyross
Vote
Twitter Facebook LinkedIn
P

630VDC 0.1uF

1H = 50VDC

1J = 63VDC 2A =100VDC 2D = 200VDC 2E = 250VDC 2G = 400VDC 2J = 630VDC 3A = 1,000VDC 3B = 1250VDC 3C = 1600VDC 3D = 2,000VDC 3E = 2,500VDC

01 = 190VAC

02 = 250VAC 03 = 275VAC 04 = 300VAC 05 = 400VAC 06 = 440VAC 07 = 500VAC 08 = 600VAC
Peter Parry
Vote
Twitter Facebook LinkedIn
F

On Sun, 03 Feb 2008 16:52:56 +0000, Peter Parry put finger to keyboard and composed:

2B = 125VDC 2C = 160VDC

2F = 315VDC

2H = 500VDC

The numbering doesn't always appear to be consistent:

formatting link

2F = 315VDC 5B = 125VAC 5E = 250VAC

formatting link

3F = 3KV DC 3G = 4KV DC 3H = 5KV DC 3I = 6KV DC

BTW, does anyone know what is meant by "POOT SIZE" and "POOT IEGTH". :-)

- Franc Zabkar

Please remove one 'i' from my address when replying by email.
Vote
Twitter Facebook LinkedIn
L

Franc Zabkar wrote in news: snipped-for-privacy@4ax.com:

Poot length? Mine tend to be of the order of 400 milliseconds.

Vote
Twitter Facebook LinkedIn
M

Unless someone lights one.

Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
Vote
Twitter Facebook LinkedIn
R

You should eat more roughage

Vote
Twitter Facebook LinkedIn
L

"Michael A. Terrell" wrote in news: snipped-for-privacy@earthlink.net:

This would affect the spatial dimensions, not the temporal. :)

Vote
Twitter Facebook LinkedIn
L

"Ron(UK)" wrote in news:- MudnQ8 snipped-for-privacy@bt.com:

That is probably why I should NOT eat more roughage...

Vote
Twitter Facebook LinkedIn
T

(1

Sounds a lot more like a tubular polypropylene/film/wax or similar capacitor than an electrolytic. Some of the better quality units (safety ratings? Danger, Will Robinson, safety ratings! Especially in a snubber on the AC line!) are in metal cans.

Tim.

Vote
Twitter Facebook LinkedIn
J

So, how does one decisively determine the type?

There are no markings whatsoever other than the ones described. The plastic insulation (shrink) covers all but the inner diameter of the ends. The leads are connected to the (aluminum) end caps which are identical.

John English
Vote
Twitter Facebook LinkedIn
G

HGC appears to be the manufacturer, but google turned up naught.

The aluminium end caps must be insulated from each other somewhere along the body of the capacitor.

How about posting a link to a photo of the capacitor?

Glenn.

Vote
Twitter Facebook LinkedIn
M

It would also call for clean underwear. ;-)

Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required