Electronic Protection And Reliability; Components; Mains Transient Overload Protection - Halcro dm10 Owner's Manual

Electronic Protection and Reliability

Components

Our components are selected not only for
performance but reliability
example:
• all Halcro electrolytic capacitors are rated
at a minimum of 105ºC instead of the
usual 85ºC rating
The operational life of electrolytic
capacitors is severely shortened at
temperatures near the maximum
temperature rating. This is shown in the
table below.
• all Halcro integrated circuits are at least
"industrial grade" rather than the usual
"commercial grade".
Industrial grade components are rated at
least from –40ºC to +85ºC whereas
commercial grade components are only
rated from 0 to 70ºC. in addition, the
electronic specifications of industrial grade
components are superior to commercial
grade
Electrolytic capacitor
temperature rating
85ºC (most commonly used)
105ºC (used in Halcro amplifiers)
Typical data from a highly respected manufacturer
Considering
as well, for significantly elevated temperatures, it can be
seen from the table below that the Halcro high
temperature
advantageous compared to the standard
85ºC rated devices.
Mains transient overload
protection
The mains input is protected against all but the
most severe mains input transients. Two
independent circuits achieve this.
Mean lifetime at 40
degrees Centigrade
50,000 hours
180,000 hours
that most amplifiers
rated capacitors
Mean lifetime at Mean lifetime at
85 degrees 105 degrees
Centigrade Centigrade
2,000 hours 0 hours
8,000 hours 2,000 hours
25
run at
are highly