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> Copper tungsten heatsink heat sink gold laser diode led
Copper tungsten heatsink heat sink gold laser diode led
Here's another item you can't find at Wal-Mart, or hardly anywhere else for that matter. These were acquired at a salvage freight sale recently and we didn't know much else about them. They are brand new in little individual tray compartments with a layer of some kind of soft fabric on each side. At first we thought we might have found a box of gold ingots because they are very, very heavy for their size. We realized they were expensive by the way they were packaged, but we didn't realize just how expensive until we researched them a bit. Besides their superior performance at dissipating heat in dense electronic circuitry and laser diodes, they also make excellent electrical contacts.
Holes: .125" (1/8") Spaced approximately .730" OC (on centers)
Advantages of Copper Tungsten are as follows:
High thermal conductivity typically 180~200 W/mK
Coefficient of Thermal Expansion (C.T.E.) range of 6.5 to 8.3 ppm/K
C.T.E. closely matches ceramic
Nickel and gold plating available
