MEP EP#268: Avoid The Extremes

MEP EP#268: Avoid The Extremes

• Fan controller for Jeep
  
  
  
  • Brushless fan temperature controller
  
  
  • Nothing fancy but the “override” signal is ground triggered!
  
  
  • Will have to invert the A/C compressor signal with a relay
  
  
  
  


• Controlling PCB cost
  
  
  
  • What are the knobs that can be turned to adjust the cost of the PCB itself?
  
  
  • The easy ones
    
    
    • Size (not necessarily rectangle)
    
    
    • Panelization
    
    
    • Base material
    
    
    • TG ratings - The glass transition temperature
    
    
    • FR4
    
    
    • Trace/Space
    
    
    • Minimum hole size
    
    
    • Mask Color
    
    
    • Surface finish
    
    
    • Copper weight
    
    
    
    
  
  
  • Not as easy ones
    
    
    • Vias
      
      
      • Tented
      
      
      • Plugged
      
      
      • Blind
      
      
      • Buried
      
      
      
      
    
    
    
    
  
  
  
  


• Digikey’s Latest Innovation
  
  
  
  • Information printed on the backside of cut tape
  
  
  • 8mm tape