Silicon Wafer FZ 12 Inch N Type
4,500 Per Piece
products specification silicon wafer 2” 3” 4” 5” 6” 8” size (inch) diameter 50.8±0.3 76.2±0.3 100±0.5 127±0.5 154±0.5 200±0.5 (mm ) growth cz/fz as requirements method grade prime / test / dummy grade thickness 180-1000 um (+/-25) as required orientation 100 / 110 / 111 type n-type/p-type as requirements dopant p-type: boron n-type: phosphorous/antimony/arsenic particle ≤30 @0.3um oxygen ≤18 new ppma content carbon ≤1 new ppma content resistivity 1-10ohm/cm others ttv≤15um, bow≤65um, warp≤65um surface single side polished/double side polished.
vacuum blood collection tubes
4 Per Piece
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Single Phase Solid State Relay SSR Aluminum Heat Sink
100 Per Piece
single phase solid state relay ssr aluminum heat sink dissipation radiator heatsinks suitable for 10a-25a relayheat sink for single phase ssrheat sink for ssr solid state relayheatsink 50x80x50heatsink 110x80x80 ssr aluminum small type heat sink heatsink 10a to 40a single phase solid state relay dissipation cooling cooler radiator heat sink is available for ssr in single phase and three phase according to suitable loadsssr heat sink is din rail mounting
disposable vacuum blood collection tube
5 Per Piece
LED Heat Sinks
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Vacuum Blood Collection Tube
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Vacuum Blood Collection Tube, diagnostics items
Heat Sinks
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The rate of producing waste heat is called the thermal power, P. Usually the base current IB is too small to contribute much heat, so the thermal power is determined by the collector current IC and the voltage VCE across the transistor. Power transistors usually have bolt holes for attaching heat sinks, but clip-on heat sinks are also available. Make sure you use the right type for your transistor. Many transistors have metal cases which are connected to one of their leads so it may be necessary to insulate the heat sink from the transistor. Insulating kits are available with a mica sheet and a plastic sleeve for the bolt. Heat-Sink compound can be used to improve heat flow from the transistor to the heat sink, this is especially important if an insulation kit is used. The heat is not a problem if IC is small or if the transistor is used as a switch because when 'full on' VCE is almost zero. However, power transistors used in circuits such as an audio amplifier or a motor speed controller will be partly on most of the time and VCE may be about half the supply voltage. These power transistors will almost certainly need a heat sink.
Aluminum Heat Sink
80 Per Piece
10 Piece (MOQ)
consumer electronic components
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50 order (MOQ)
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