Flashlight SinkPad PCB

Custom flashlight sinkPad PCB , delivery in 10 days
Thermal conductivity up to 385 W/m.k

Andwin provide thermal pad metal core PCB for customer, email us now for you PCB quote,
Email is : mcpcb@andwinmcpcb.com

Flashlight sinkpad pcb

1.6mm copper sinkpad pcb
20mm Cree XHP50 use for flashlight

1.6mm copper sinkpad pcb
20mm Cree XHP70 use for flashlight

1.6mm copper sinkpad pcb TC 385W/m.k
20mm Cree XM-L use for flashlight

1.6mm copper sinkpad pcb TC 385W/m.k
20mm Cree XHP50 use for flashlight

1.6mm copper sinkpad pcb
16mm use for flashlight

SinkPAD PCB is a special type of metal core PCB( MCPCB ),
The LED sink heat pad solder direct to the metal substrate,
Also,it is called Thermal pad MCPCB,direct thermal path mcpcb.

There are 2 types metal substrate,
Aluminum core sinkpad PCB and copper core sinkpad PCB.

Aluminum core sinkpad PCB thermal conductivity could be 235 W/m.k,
Copper core sinkpad PCB thermal conductivity could be 385 W/m.k

LEDs Chip Thermal Pads solder direct to the Aluminum or Copper substrate directly,
No dielectric between LEDs heat out pads and the Metal core.
Means,thermal resistance is very small and ,
Thermal conductivity could be 235 W/m.k to 400 W/m.k.

Aluminum core sinkpad PCB stack up

Copper substrate sinkpad PCB stack up

Metal core PCB’s thermal conductivity only 1.0 W/m.k, maximum 12 W/m.k.

Sinkpad PCB thermal conductivity is much better than metal core PCB.

The SinkPad PCB provides fine heat transfer from the LED to the metal substrate,

Capability of Metal core PCB

Metal core PCB Capability
ItemTechnical specification
Board thicknessMaximum (mm)3.05.0
Panel sizeMaximum (mm)600×1170/
Layer countAluminum PCB1-8L10 L
Copper PCB1-8L10 L
Iron PCB1/
ceramics PCB1-2/
Thermal ConductivityAluminum PCB(w/m.k)0.8 to 12
Copper PCB(w/m.k)2.0-378/
ceramics PCB(w/m.k)24
DrillingMinimum drill diameter (mm)1.00.8
2 Layer ALPCB Via0.3/
MaterialChao Shun(CCAF)(China)Yes/
Hua Dian(China)Yes/
Chin Shi(TaiWan)Yes/
ITEQ(Tai Wan)Yes/
Other brand per customerYes/
Final finishingHASL Lead FreeYes/
Immersion SilverYes/
Immersion Tin/YES

Advance of the sinkpad PCB

  • Thermal conductivity 235 To 385 W/m.k
  • Power LED junction temperature
  • Longer LED life
  • Most economical direct thermal path solution
  • Direct thermal path
  • No design change require

About Andwin MCPCB

Andwin Ciurcuits MCPCB davision  set up on Feb. 2006.
Focus on  providing metal core PCB for customer
In LED field and power supply field.
We can meet all your MCPCB manufacturing needs,
From single-sided Aluminum to 
complex multilayered metal clad substrate PCBs
And from prototype through production.

The following is a list of the services and products 

We offer:
• Metal Core PCB
• Thermal PAD MCPCB
• Aluminum PCB
• Copper based PCB
• Double sided Aluminum PCB

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