Cap labeled 100 16F, is 16F the voltage?

A

amdx

Guest
Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

> https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek
 
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek
Click to expand...

Likely 100 uF 16V, and the F means something else. Measure one!


--

John Larkin Highland Technology, Inc

lunatic fringe electronics
 
On 8/7/2019 10:29 AM, John Larkin wrote:
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek

Likely 100 uF 16V, and the F means something else. Measure one!


The capacitance is easy, my concern is the voltage rating of the capacitor.
Click to expand...

Mikek
 
On Wednesday, August 7, 2019 at 11:42:58 AM UTC-4, amdx wrote:
On 8/7/2019 10:29 AM, John Larkin wrote:
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek

Likely 100 uF 16V, and the F means something else. Measure one!


The capacitance is easy, my concern is the voltage rating of the capacitor.

Mikek
Click to expand...

Well can you measure what voltage is across the cap when the circuit is turned on?

GH
 
On 8/7/2019 11:02 AM, George Herold wrote:
On Wednesday, August 7, 2019 at 11:42:58 AM UTC-4, amdx wrote:
On 8/7/2019 10:29 AM, John Larkin wrote:
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek

Likely 100 uF 16V, and the F means something else. Measure one!


The capacitance is easy, my concern is the voltage rating of the capacitor.

Mikek

Well can you measure what voltage is across the cap when the circuit is turned on?

GH
Click to expand...

No, I'm salvaging an smd cap of of a used junk computer mother board
for a friend doing a repair.
Mikek
 
On 8/7/2019 12:59 PM, JC wrote:
amdx wrote:
On 8/7/2019 11:02 AM, George Herold wrote:
On Wednesday, August 7, 2019 at 11:42:58 AM UTC-4, amdx wrote:
On 8/7/2019 10:29 AM, John Larkin wrote:
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22
16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

                                     Thanks, Mikek

Likely 100 uF 16V, and the F means something else. Measure one!


The capacitance is easy, my concern is the voltage rating of the
capacitor.

                             Mikek

Well can you measure what voltage is across the cap when the circuit
is turned on?

GH


  No, I'm salvaging an smd cap of of a used junk computer mother board
for a friend doing a repair.
                                   Mikek
I believe 16 is the voltage, F is for lead free.
Could be wrong, I really hate these cryptic codes on SMD components, if
they even bother to put a value on. I need a freakin crib sheet for SMD
resistors with the EIA-96 codings.
JC
Click to expand...

Everyone needs a crib sheet for those and smd transistors, regulators
fets. Somebody tell Winfield that needs to be in his book!
Mikek
 
amdx wrote:
On 8/7/2019 11:02 AM, George Herold wrote:
On Wednesday, August 7, 2019 at 11:42:58 AM UTC-4, amdx wrote:
On 8/7/2019 10:29 AM, John Larkin wrote:
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22
16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

                                     Thanks, Mikek

Likely 100 uF 16V, and the F means something else. Measure one!


The capacitance is easy, my concern is the voltage rating of the
capacitor.

                             Mikek

Well can you measure what voltage is across the cap when the circuit
is turned on?

GH


 No, I'm salvaging an smd cap of of a used junk computer mother board
for a friend doing a repair.
                                  Mikek
Click to expand...
I believe 16 is the voltage, F is for lead free.
Could be wrong, I really hate these cryptic codes on SMD components, if
they even bother to put a value on. I need a freakin crib sheet for SMD
resistors with the EIA-96 codings.
JC
 
John Larkin wrote:

> Likely 100 uF 16V, and the F means something else. Measure one!

Why, when you write "mesure one", I read "blow one up"?

Best regards, Piotr
 
On 8/7/19 5:01 PM, John Larkin wrote:
On Wed, 7 Aug 2019 21:42:19 +0200, Piotr Wyderski
peter.pan@neverland.mil> wrote:

John Larkin wrote:

Likely 100 uF 16V, and the F means something else. Measure one!

Why, when you write "mesure one", I read "blow one up"?

Best regards, Piotr


You can creep up on the voltage across an electrolytic and note the
leakage current, to estimate the voltage rating. That (unfortunately)
doesn't require exploding anything. I have seen polymer aluminum caps
that died suddenly, around 1.5x rated voltage, with no current
increase as a warning.

Can I borrow your car?

(Awaiting a measured response to that one.) ;)
Click to expand...

It could be an ex-Fiat!

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 
On Wed, 7 Aug 2019 21:42:19 +0200, Piotr Wyderski
<peter.pan@neverland.mil> wrote:

John Larkin wrote:

Likely 100 uF 16V, and the F means something else. Measure one!

Why, when you write "mesure one", I read "blow one up"?

Best regards, Piotr
Click to expand...

You can creep up on the voltage across an electrolytic and note the
leakage current, to estimate the voltage rating. That (unfortunately)
doesn't require exploding anything. I have seen polymer aluminum caps
that died suddenly, around 1.5x rated voltage, with no current
increase as a warning.

Can I borrow your car?
 
"amdx" <nojunk@knology.net> wrote in message
news:qif0bh$7ub$1@dont-email.me...
No, I'm salvaging an smd cap of of a used junk computer mother board for
a friend doing a repair.
Mikek
Click to expand...

Even easier. Motherboards don't have anywhere near 100V on them.

Tim

--
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Design
Website: https://www.seventransistorlabs.com/
 
On Wed, 7 Aug 2019 09:21:43 -0500, amdx <nojunk@knology.net> wrote:

Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

Thanks, Mikek
Click to expand...

Samwha RC series uses the F suffix, after the voltage, to identify
itself.

RL
 
On 8/7/2019 9:21 AM, amdx wrote:
Here's a picture of two caps, one labeled 100 16F and the other 22 16F.
Is the F the voltage?

https://www.dropbox.com/s/umqqw8a514jy1y7/caps.jpg?dl=0

                                   Thanks, Mikek
Click to expand...
I met the my friend for breakfast he showed my the RC controller board
he was repairing. I'm not sure if he can fit the 22uf cap in the
position where it needs to go. The cap I have is 0.2" in diameter.
I didn't get to see the original, so I don't know the style.
Oh well, I tried, he can order it.

Mikek
 
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