Aluminum PCB /Metal Core PCB / MCPCB
Now many LED manufacturers are facing the problem of heat dissipation,aluminum PCB is the best solution, because the high thermal conductivity of aluminum, you can effectively export the internal heat, design PCB as far as possible close to the aluminum base, thereby reducing the potting part of the thermal resistance.(Enquiry pls send to Sales@vipcircuit.com )
Metal Core PCB Materials and Thickness
The metal core of the thermal PCB can be aluminum base , Cu-base PCB or a heavy copper PCB or a mixture of special alloys. The most common is an aluminum core PCB.
The thickness of metal cores in PCB base plates is typically 30 mil - 125 mil, but thicker and thinner plates are possible.
MCPCB copper foil thickness can be 1 - 10 oz.
Application field of aluminum PCB
Audio equipment: input, output amplifier, balance amplifier, audio amplifier, preamplifier, power amplifier, etc.
Power Equipment: Switch regulator, DC/AC converter, SW regulator, high-power transistor, voltage regulator and so on.
High-frequency communication electronic equipment: high-frequency amplifier, filter circuit, transmitter circuit.
Automotive: Electronic regulator, igniter, power controller, etc.
Computer: CPU board, floppy disk drive, power device, etc.
Power module: Converter, solid relay, rectifier, Pulse motor Drive
Other: Semiconductor insulated heat conduction plate, resistor array, heat receiver and solar cell base board.
Main properties of aluminum base CCL
Peel Strength n/mm:2.0, 2.8
Insulation Resistance M-ou: ≧1x105 (GJB151 4010)
Breakdown voltage DC kv:4-6 (GJB151 5040)
Thermal Shock Foaming: 1 min 260 ℃, 280℃ (gb/t4722 17)
Resistance ℃/w:1.5, 1.2 (TO220) 0.8, 0.75
Flammability: Fv-o (gb/t4722 26)
Dielectric loss angle (tangent): ≦0.03, 0.02 (40℃,93%96h)
Dielectric constant: 1mhz≦4.4, 3.5 (40℃,93%96h)
A, The insulating layer is thin, the thermal resistance is small;
B, Non-magnetic, electromagnetic shielding;
C, Good heat dissipation;
D, High mechanical strength product standard thickness: 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0mm copper foil thickness: 1.8um 35um 70um 105um 140um