Need Help with capacitor markings

J

Joe

Guest
I have a few aluminum electrolytic caps that I took out of disposable flash
cameras. They are not marked with how many microfarads and voltage info,
just some numbers. I don't know why, there's plenty of room on them, but
does anyone know where I can find a site or source that will explain to me
what these markings mean?

I have googled for 'capacitor markings' and 'electrolytic capacitor
markings' and found some stuff but nothing that really explains what the
numbers mean, except for the small ceramics . I have a bunch of these and I
am going to start using them in one of my hairbrained projects soon but
didn't want them to explode. For example, they all have markings showing
where the negative terminal is, but then one has numbers on it as follows:
9649K, another says 589. They are from flash cameras, so they probly have
a pretty hefty voltage (couple of hundred volts) rating, but I would like to
know the capacitance if that info is possible to find out from these
numbers?

TIA,
Joe
 
Most of the manufactures of these flashes use house numbers on their parts.
Get a hold of a capacitor meter, and take a reading of the cap. This is the
best way to know the capacitance.

The meter cannot tell you the maximum rated voltage of the cap. The voltage
rating of most flash caps is usually in the order of about 350 Volts and up.
I have seen many in the 400 to 450 Volt range.

--

Jerry G.
==========================


"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:hrEMc.12788$f4.7329@newsread3.news.atl.earthlink.net...
I have a few aluminum electrolytic caps that I took out of disposable flash
cameras. They are not marked with how many microfarads and voltage info,
just some numbers. I don't know why, there's plenty of room on them, but
does anyone know where I can find a site or source that will explain to me
what these markings mean?

I have googled for 'capacitor markings' and 'electrolytic capacitor
markings' and found some stuff but nothing that really explains what the
numbers mean, except for the small ceramics . I have a bunch of these and I
am going to start using them in one of my hairbrained projects soon but
didn't want them to explode. For example, they all have markings showing
where the negative terminal is, but then one has numbers on it as follows:
9649K, another says 589. They are from flash cameras, so they probly have
a pretty hefty voltage (couple of hundred volts) rating, but I would like to
know the capacitance if that info is possible to find out from these
numbers?

TIA,
Joe
 
Thanks Jerry,

My capacitance meter only goes up to 100uF. Maybe if I put them into a
circuit with a known inductor and sweep a signal till I get resonance, then
calculate. That might work, I have done it with unknown inductors before.

Joe


"Jerry G." <jerryg50@hotmail.com> wrote in message
news:ce06lr$rbu$1@news.eusc.inter.net...
Most of the manufactures of these flashes use house numbers on their
parts.
Get a hold of a capacitor meter, and take a reading of the cap. This is
the
best way to know the capacitance.

The meter cannot tell you the maximum rated voltage of the cap. The
voltage
rating of most flash caps is usually in the order of about 350 Volts and
up.
I have seen many in the 400 to 450 Volt range.

--

Jerry G.
==========================


"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:hrEMc.12788$f4.7329@newsread3.news.atl.earthlink.net...
I have a few aluminum electrolytic caps that I took out of disposable
flash
cameras. They are not marked with how many microfarads and voltage info,
just some numbers. I don't know why, there's plenty of room on them, but
does anyone know where I can find a site or source that will explain to me
what these markings mean?

I have googled for 'capacitor markings' and 'electrolytic capacitor
markings' and found some stuff but nothing that really explains what the
numbers mean, except for the small ceramics . I have a bunch of these and
I
am going to start using them in one of my hairbrained projects soon but
didn't want them to explode. For example, they all have markings showing
where the negative terminal is, but then one has numbers on it as follows:
9649K, another says 589. They are from flash cameras, so they probly
have
a pretty hefty voltage (couple of hundred volts) rating, but I would like
to
know the capacitance if that info is possible to find out from these
numbers?

TIA,
Joe
Click to expand...
 
"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:AcQMc.12561$iK.8357@newsread2.news.atl.earthlink.net...
Thanks Jerry,

My capacitance meter only goes up to 100uF. Maybe if I put them into a
circuit with a known inductor and sweep a signal till I get resonance,
then
calculate. That might work, I have done it with unknown inductors before.

Joe


"Jerry G." <jerryg50@hotmail.com> wrote in message
news:ce06lr$rbu$1@news.eusc.inter.net...
Most of the manufactures of these flashes use house numbers on their
parts.
Get a hold of a capacitor meter, and take a reading of the cap. This is
the
best way to know the capacitance.

The meter cannot tell you the maximum rated voltage of the cap. The
voltage
rating of most flash caps is usually in the order of about 350 Volts and
up.
I have seen many in the 400 to 450 Volt range.

--

Jerry G.
==========================


"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:hrEMc.12788$f4.7329@newsread3.news.atl.earthlink.net...
I have a few aluminum electrolytic caps that I took out of disposable
flash
cameras. They are not marked with how many microfarads and voltage info,
just some numbers. I don't know why, there's plenty of room on them, but
does anyone know where I can find a site or source that will explain to
me
what these markings mean?

I have googled for 'capacitor markings' and 'electrolytic capacitor
markings' and found some stuff but nothing that really explains what the
numbers mean, except for the small ceramics . I have a bunch of these
and
I
am going to start using them in one of my hairbrained projects soon but
didn't want them to explode. For example, they all have markings showing
where the negative terminal is, but then one has numbers on it as
follows:
9649K, another says 589. They are from flash cameras, so they probly
have
a pretty hefty voltage (couple of hundred volts) rating, but I would
like
to
know the capacitance if that info is possible to find out from these
numbers?

TIA,
Joe
Click to expand...
It's probally not much help, but I have some flash camera capacitors. They
are made by Rubycon and are rated at 330V and 120uF. To get the voltage I
would just measure the voltage the camera supplies to the capacitor (if you
have access to the circuit). It's probally not the maximum voltage, but it
would still be high (I guess).
 
"C" <c@c.com> wrote in message news:ce38d3$efp$1@newsg1.svr.pol.co.uk...
"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:AcQMc.12561$iK.8357@newsread2.news.atl.earthlink.net...
Thanks Jerry,

My capacitance meter only goes up to 100uF. Maybe if I put them into a
circuit with a known inductor and sweep a signal till I get resonance,
then
calculate. That might work, I have done it with unknown inductors
before.

Joe


"Jerry G." <jerryg50@hotmail.com> wrote in message
news:ce06lr$rbu$1@news.eusc.inter.net...
Most of the manufactures of these flashes use house numbers on their
parts.
Get a hold of a capacitor meter, and take a reading of the cap. This
is
the
best way to know the capacitance.

The meter cannot tell you the maximum rated voltage of the cap. The
voltage
rating of most flash caps is usually in the order of about 350 Volts
and
up.
I have seen many in the 400 to 450 Volt range.

--

Jerry G.
==========================


"Joe" <nuisancewildlife@nospamearthlink.net> wrote in message
news:hrEMc.12788$f4.7329@newsread3.news.atl.earthlink.net...
I have a few aluminum electrolytic caps that I took out of disposable
flash
cameras. They are not marked with how many microfarads and voltage
info,
just some numbers. I don't know why, there's plenty of room on them,
but
does anyone know where I can find a site or source that will explain
to
me
what these markings mean?

I have googled for 'capacitor markings' and 'electrolytic capacitor
markings' and found some stuff but nothing that really explains what
the
numbers mean, except for the small ceramics . I have a bunch of these
and
I
am going to start using them in one of my hairbrained projects soon
but
didn't want them to explode. For example, they all have markings
showing
where the negative terminal is, but then one has numbers on it as
follows:
9649K, another says 589. They are from flash cameras, so they probly
have
a pretty hefty voltage (couple of hundred volts) rating, but I would
like
to
know the capacitance if that info is possible to find out from these
numbers?

TIA,
Joe






It's probally not much help, but I have some flash camera capacitors.
They
are made by Rubycon and are rated at 330V and 120uF. To get the voltage I
would just measure the voltage the camera supplies to the capacitor (if
you
have access to the circuit). It's probally not the maximum voltage, but
it
would still be high (I guess).
Click to expand...
Hey C,

Thanks. Yes, I have a few rubycons, they are in the kodak max flash cameras.
These were from some no name camera.

The physical size of my unknowns is not that much different, but I don't
think I will need to charge them past 250V anyway.

Joe
 
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