Heatsinks for Amplifiers, Power Supply Heatsinks, Electronics
Heat Sinks, Aluminum heatsinks, Aluminium Heatsinks
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sinks, amplifier,power amp heat sinks,aluminium heatsinks,Conrad, Conrad
Engineering, Australia Manufacturers of heatsinks for electronics offering
designs combining superior thermal performance to suit a wide range
of applications. Standard range 2.3 - 0.1 *C/W (0.15 - 2.5 kg.)".
* degrees. Conrad Heatsinks manufacture
heatsinks in extruded aluminium (aluminum) heat sinks
for use in the following applications:
electronics heatsinks, electrical heatsinks, amplifier
heatsinks, power supply heatsinks
extruded, not diecast, resulting in greatly improved quality and very
low porosity. The component mounting surfaces on Conrad heatsinks
are machined, generally linished and remain uncoated. This surface preparation
maximizes thermal conductivity between component and heatsink.
The flanged mounting feature is designed to improve thermal conductivity,
provide greater ease of assembly and savings in cost compared to a fabricated
heatsink and right angle bracket arrangement. By eliminating
the thermal junction between heatsink base and bracket with a single
piece heatsink, component temperatures are significantly reduced.
For example, the thermal resistance of the interface between a right
angle bracket with cross-section 40x40x6mm bolted at 50mm. intervals
to a flat backed heatsink (including thermal grease), has been measured
at 3.5 C/W/cm2. The corresponding figure for Conrad flanged heatsink
is virtually zero.
As a rule, heatsink width (as measured transversely across the fins)
is thermally more effective than length (as measured along the fins).
Comparing the two heatsinks of similar thermal resistance the wider
heatsink is more effective as far as power dissipated per unit volume
(45% greater) and weight (28% less). Hence, the inclusion of relatively
broad heatsinks into the Conrad range.
The heatsink section profiles have been designed to provide
an optimum fin profile for a given fin height, length and convection
condition. Conrad heatsinks are suitable for both natural convection
and forced airflow.
Optimum section thicknesses are provided to maintain conservative temperature
gradients across all heatsink surfaces and ensure ample mechanical strength
which assists mounting components (in order to maintain flatness and
provide sufficient fastener thread depth) and for applications where
the heatsink is used as a structural component (for example, as part
of an enclosure).
Aluminium Alloy (Aluminum) Heatsinks
Conrad heatsinks are manufactured using primary specification CC 601
aluminium alloy, chosen for high thermal conductivity, premium physical
properties- strength, ductility, machinability, corrosion resistance
and suitability to the forming process. To maintain premium material
properties, all alloy is strontium modified, titanium-boron grain refined
and hydrogen de-gassed prior to use in manufacture.
Heatsink Coating Material: Textured black polyester
powder coating has been chosen as the standard finish on all coated
Conrad heatsinks and provides a quality, durable and attractive finish
capable of withstanding elevated temperatures, increased thermal dissipation
in the order of 5% to 8% (depending on the heatsink) under natural convection.
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