Heat sinks

German Assmann WSW components produces a wide variety of heat sinks. Assmann WSW components
is a part of the Assmann group, a well known worldwide system supplier for standard- and customer tailored
connectors, cable harnesses, heat sinks and assemblies.

Finger-shaped and small heatsinks

Heatsink for IC module
U - heatsink for transistor TO-220
Special heatsink for TO-220 / SOT - 32
Stamped finger-shaped heatsink
SMT - heatsink for D Pak housing
Packaging: bulk / tape & reel
Special: all popular surfaces
Thermal resistance: 7 K/W - 80 K/W

Attachable heatsinks

Attachable heatsinks for TO-220 / TO-218

Versions:
with straight solderpins
with right-angle solderpins

Featherweight heatsinks
Special: all popular surfaces
Thermal resistance: 13 K/W - 63 K/W

Extruded heatsinks

Extruded heatsinks with solderpins

• Extruded heatsink for TO-220/TOP-3/ SOT-32
• Versions:
  
• With solderpins 4,5 mm
• Special: all popular surfaces
• Brackets for transistors available
• Thermal resistance: 3,5 K/W - 38 K/W

Extruded heatsinks in standard length

• Extruded heatsinks for TO-220/TOP-3
• Special heatsinks for eurocards
  
• Special: All popular surfaces
  
• Special heatsinks with extruded M3 thread
  
• Thermal resistance: 1,5 K/W - 40 K/W

Extruded heatsinks as cabinet backs

• Heat-transfer outside the application
  
• Optimized geometries
  
• Standard width from 100 mm to 300 mm
  
• Customer specific conditioning possible
  
• Special: all popular surfaces
  
• Thermal resistance: 0,5 K/W - 3 K/W
  

Profile heatsinks

Customized profile heatsinks (tooling required)

Custom specific conditioning in own facility:

• Milling
• Drilling
  
• Turning
  
• Polish
• Anodization
  

Big variety of existing profile heatsink tools
All popular surfaces

Die-cast heatsinks

Special: black vanished
Milled mounting surface
Semiconductor threads available for
M4, M5, M6, M8, M10, M12 screws
Accessories: anode lugs
Thermal resistance: 1,1 K/W - 5 K/W

Mounting assessories

• Thermal conductive ceramic pads
• Mounting-kits for isolation of transistors
  
• Insulating washers
  
• Aluminium oxide wafers
  
• Stand-off for transistors
  
• Insulating mica wafers
  
• Distance spacers ( steel, brass, plastic)
  

Thermal conductance paste / adhesive

• Single-component adhesive in 3 g and 20 g
• Thermal conductance paste with or w/o silicon
  
• 15 g - 25 kg
  
• Heat conductivity: 1,0 W/mK
  
• Temperature range: -40° C to +200°C
  
• Packaging: tubes, box, buckets
  
  

Customized Solutions

Do you need technical support on heat-calculation and layout of heatsinks?

Beside a big varity of standard heatsinks ASSMANN WSW components offers layouting of the heatsink, heat-calculation and application analyse. Other offer are sample production, adjustment and series production of sophisticated heatsinks.