[Amps] 50 watt zeners

Roger sub1 at rogerhalstead.com
Tue Feb 10 14:13:24 PST 2009



David Cutter wrote:
> Power zeners might be more popular if they were made in T0-220 package, like 
> power resistor are these days.  Stud mount devices are so fiddly and 
> disproportionately expensive, too.
>   
Although they don't allow much flexibility in the installation, for 
large Zeners the stud mount is appropriate and efficient for the 
designed use. The big ones were bolted down to heat sinks which made for 
a very simple and rugged installation.   I had some that came out of 
some industrial installation that were huge.

73

Roger (K8RI)
> David
> G3UNA
>
>
> ----- Original Message ----- 
> From: "John Lyles" <jtml at losalamos.com>
> To: <amps at contesting.com>
> Sent: Monday, February 09, 2009 2:48 PM
> Subject: [Amps] 50 watt zeners
>
>
>   
>> Microsemi makes a full line of big zeners, same as Motorola used to. 50 
>> watt? No problem. Up to 200 volts, with the venerable 1N3350B. The have 
>> 591 types listed on the 50 watt page.... I use their parts a lot.
>>
>> http://www.microsemi.com/idx.asp?MN=322
>>
>> 73
>> John
>> K5PRO
>> on the road in Oklahoma City, heading west
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>
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