[Amps] 32 Volt LDMOS being superceded by 50 V?

[John Lyles]

No they are not. MRF151G is still popular especially, several sources. They are also used in many broadcast television amplifiers, so they won't be gone soon. In new designs, choose 50 V and use a 48 V telecom power supply. 

73
John
K5PRO



> Are 32 V  LDMOS amplifier transistors becoming scarce, or hard to find, as spares,  due to the newer 50V LDMOS taking over new designs?
> 
> I assumed they are still around because they are listed in Digi Key and other suppliers, but found out that they are disappearing from some Catalogs.
> The question is raised, because a lot of  Amp Boards exist surplus with the 28-32 Volt devices.  Looks like maybe new Ham designs should migrate to 50 volt devices.  yes/no?  
> 
> I have a number of prototype boards from Pineapple Technologies with   BLF 861A  and BLF 872 32 V devices...
> 
> 
> Best Regards,   
> Pat Barthelow   AA6EG
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