Max Voltage of Ceramic Capacitor - Electronic Circuits Projects Diagrams Free

Peter_wadley · 12th April 2008, 05:40 AM

I cant seem to find out what the max Voltage you can apply to this capacitor is:

crust · 12th April 2008, 05:51 AM

There is a glare on the part, but I believe I see an E, that means 25V assuming this part follows the general marking standard

**Krumlink** · 12th April 2008, 06:06 AM

E5M it reads.

Peter_wadley · 12th April 2008, 06:11 AM

Quote:

Originally Posted by crust

There is a glare on the part, but I believe I see an E, that means 25V assuming this part follows the general marking standard

OK thanks!

Do you by chance have a link to the marking standards?

crust · 12th April 2008, 04:15 PM

They are in a book I have, but a quick search yielded this. I didn't check it so I can't attest to its correctness.

Peter_wadley · 12th April 2008, 06:12 PM

Yes thats the same one I found... its perfect

I was always under the impression ceramic caps could withstand a number of KV, thank good i asked!!

Hero999 · 12th April 2008, 08:33 PM

Most ceramic capacitors can only stand from 25V to 100V but some are only rated to 16V.

crutschow · 13th April 2008, 12:35 AM

In the olden days, the ceramic caps that were used in tube circuits had to withstand several hundred volts. And some high power transmitter circuits run on well over a thousand volts. Thus the typical ceramic cap was designed to withstand high voltages. Now there's not much need for such high voltages so the caps are correspondingly lower voltage since a lower voltage cap can use a thinner insulator between conducting layers, making the cap physically smaller.

**Nigel Goodwin** · 13th April 2008, 10:20 AM

Quote:

Originally Posted by Peter_wadley

Yes thats the same one I found... its perfect

I was always under the impression ceramic caps could withstand a number of KV, thank good i asked!!

It's usually the blue circular ones that are high voltage, they commonly go faulty in TV's - easy to spot though, they either have an obvious burnt spot on them, or a burnt split.

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12th April 2008, 05:51 AM	(permalink)
crust	There is a glare on the part, but I believe I see an E, that means 25V assuming this part follows the general marking standard

12th April 2008, 06:06 AM	(permalink)
Krumlink	E5M it reads. __________________ MechTronics World of Warcraft is a disease

12th April 2008, 04:15 PM	(permalink)
crust	They are in a book I have, but a quick search yielded this. I didn't check it so I can't attest to its correctness.

12th April 2008, 06:12 PM	(permalink)
Peter_wadley	Yes thats the same one I found... its perfect I was always under the impression ceramic caps could withstand a number of KV, thank good i asked!! __________________ "Stick around" - Arnold Schwarzenegger in The Predator after impaling a soldier to a wood post 9vDC Guitar Pedal PSU PIC16F84a Game Module

12th April 2008, 08:33 PM	(permalink)
Hero999	Most ceramic capacitors can only stand from 25V to 100V but some are only rated to 16V. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez

13th April 2008, 12:35 AM	(permalink)
crutschow	In the olden days, the ceramic caps that were used in tube circuits had to withstand several hundred volts. And some high power transmitter circuits run on well over a thousand volts. Thus the typical ceramic cap was designed to withstand high voltages. Now there's not much need for such high voltages so the caps are correspondingly lower voltage since a lower voltage cap can use a thinner insulator between conducting layers, making the cap physically smaller.