21 Sep
2014
21 Sep
'14
6:48 p.m.
On Sun, 21 Sep 2014, Ian McLaughlin wrote:
On Sep 21, 2014, at 2:30 PM, Robert Jarratt
<robert.jarratt at ntlworld.com> wrote:
Most of the time this is the case with the voltage rating of a capacitor.
However, tantalum parts should be used at a maximum of about half their
rated voltage (derated 50%). This is the direct advice of both Kemet and
AVX. Failure to do this will almost always result in a fireworks show down
the road (and tantalum capacitors do not self-extinguish).
In investigating the fault on my H7874 PSU I
desoldered a tantalum capacitor
which I have broken in the desoldering process. I can't tell its value, the
markings are 224 E5Z on one side and 038 ASF on the other side.
From these markings, can anyone tell me what value/spec the capacitor has?
224 usually means 22 and 4 zeroes in picofarads. Meaning 0.22
microfarads. Voltage is not critical as long as it's bigger than my he
power supply voltage. Make sure you put the new one in the right way
around.