1. Home
  2. Electronic Components
  3. Help Identifying This Capacitor?

Help Identifying This Capacitor?

I'm in the process of repairing an LCD monitor, and I need to replace two Caps on the inverter section of the power board. The problem is, I don't know the name of this type of capacitor; the package is a yellow plastic cube with no markings other than "72=B52J 63" stamped on the top. They don't seem to be polarized, and where one has melted, the innards seem to be a single piece of solder-looking metal, no liquid electrolyte, no mica (as far as I can tell), no paper. Can anyone help me out here? I'm sure I can locate a source to buy some (mouser, digikey, etc...) if only I knew what to look for. The inverter functions intermittently even with these caps in their semi-melted state, if that helps at all.

Thanks, Mike Matthews

Reply to
m1ke dot m477hewz at gmail dot
Loading thread data ...

Thanks, Mike Matthews

The 63 is the voltage, the J is the tolerance, which IIRC is 5%, and the first part is the capacitance, which is an extremely odd value, 72.2 uF. I would guess that a more common value such as 68 uF would be available. Why they should choose such an oddball value is a mystery. If it works ok with a 68uF then no problem. If not, add a 4.7 uF to it if there's room. Else order the exact part from the factory, but be prepared for sticker shock.

Reply to
Watson A.Name - "Watt Sun, th

The 'seven' is a stranger. The value will be 2u2F (2.2uF) and probably a polyester film type as it is non-polar.

-- Graham W

formatting link
PGM-FI page updated, Graphics Tutorial WIMBORNE
formatting link
Wessex Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps Change 'news' to 'sewn' in my Reply address to avoid my spam filter.

Reply to
Graham W

On 25 Aug 2005 15:45:08 -0700, "m1ke dot m477hewz at gmail dot com" put finger to keyboard and composed:

I don't know about the "7", but the rest suggests a 2.2uF 63V metallised film capacitor. I'm guessing the two caps are used in the RC snubbers for the two MOSFETs ???

- Franc Zabkar

--
Please remove one 's' from my address when replying by email.
Reply to
Franc Zabkar

actually, the 7 might be a slanted "T", maybe a manufacturer? (as I said, the package is a little melted.

Reply to
m1ke dot m477hewz at gmail dot

On 26 Aug 2005 16:05:57 -0700, "m1ke dot m477hewz at gmail dot com" put finger to keyboard and composed:

MKT ???

- Franc Zabkar

--
Please remove one 's' from my address when replying by email.
Reply to
Franc Zabkar

Thanks alot guys, found the exact one I needed:

formatting link
Appreciate your help.

-Mike Matthews

Reply to
m1ke dot m477hewz at gmail dot

scratch that, it was the wrong one. found the right one now... mouser part # 581-BF054D0225K

Reply to
m1ke dot m477hewz at gmail dot

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.