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HMC948 Recommended for New Designs
The HMC948LP3E Logarithmic Detector converts RF signals at its input, to a proportional DC voltage at its output. The HMC948LP3E employs successive compression...
Datasheet
HMC948 on Analog.com

HMC532 Recommended for New Designs
The HMC532LP4(E) is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCO with an integrated resonator, negative resistance device, varactor diode...
Datasheet
HMC532 on Analog.com

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About the specs of HMC948 and HMC532



		

			

									
					    Hiro-blue
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 22, 2019 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi all,
    

    Please let me know the following data of HMC948LP3E and HMC532LP4E.
    

    <Need Information>
      - theta-JA
      - theta-JC
    

    

    Best Regards,
    

    Hiro
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Nov 22, 2019 8:15 PM
            
            
					
      
	
      

		
		
      
					
      Hi Hiro, 
      

      

      For legacy HMC products like these, theta-JA was not derived. It's pretty useless (my opinion) as this is not the primary thermal path and generally derived using a JEDEC board that is not representative of the actual application. The JEDEC board will not match the recommended board thickness, material, footprint, etc. - only somewhat useful for comparing thermals to the same product that a competitor may offer in the same package. 
      

      

      Theta-JC = Thermal Resistance (junction to ground paddle) on the HMC532.
      

      

      Best Regards, 
      

      

      Marty 
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Nov 22, 2019 8:15 PM
            
            
					
      
	
      

		
		
      
					
      Hi Hiro, 
      

      

      For legacy HMC products like these, theta-JA was not derived. It's pretty useless (my opinion) as this is not the primary thermal path and generally derived using a JEDEC board that is not representative of the actual application. The JEDEC board will not match the recommended board thickness, material, footprint, etc. - only somewhat useful for comparing thermals to the same product that a competitor may offer in the same package. 
      

      

      Theta-JC = Thermal Resistance (junction to ground paddle) on the HMC532.
      

      

      Best Regards, 
      

      

      Marty 
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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